AUDIO TOOL KIT

Field notes

Guides for location sound and post production

Poly WAVs, BWF metadata, timecode, sample rates, bit depth and clean audio extraction. Written by people who spend their days on set and in the edit.

194 articles found

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5.1 surround mixing for film, and the stereo fold down nobody checks

Most viewers will hear your 5.1 mix folded to two channels. If you never check the fold down, you never heard what the audience hears.

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LUFS explained: why your film is rejected for being too loud

Peak meters tell you about clipping. LUFS tells you how loud something feels, which is what platforms measure before they turn your mix down.

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Film sound design basics: building a world the camera cannot show

Sound design is not adding effects. It is deciding what the audience should believe exists just outside the frame.

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The audio post production pipeline, from card to final mix

Audio post is not one job, it is eight, in a specific order. Doing them out of order is why independent mixes stall.

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Sync sound: keeping dual system audio locked to picture

Recording sound separately from picture is standard practice. Everything about sync sound is designed to make those two files meet again.

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Wind noise: the only problem you cannot fix in post

Wind is not a sound, it is turbulence hitting a diaphragm. Once it has overloaded the capsule, no plugin gives the dialogue back.

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Foley: why real footsteps sound fake and recorded ones sound real

Audiences believe performed footsteps more than real ones. Foley is the craft of rebuilding a world that the boom mic never captured.

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What a boom operator actually does, beyond holding the pole

The boom operator memorises blocking, reads frame lines, dodges shadows and delivers the single most valuable asset in post: clean dialogue.

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Shotgun microphone guide: what the interference tube really does

A shotgun mic does not zoom. It rejects sound from the sides, and inside a small room that rejection turns against you.

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Boom mic technique: the shot is only as good as the arm holding it

A boom mic is the cheapest upgrade in filmmaking, and the easiest to get wrong. Distance and angle beat any microphone upgrade.

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Interview audio setup: the two microphone rig that never lets you down

Most interview audio problems are decided in the first five minutes, before anyone has said a word.

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Documentary audio workflow: from a chaotic shoot to an organised edit

Documentary sound is not harder than fiction. It is just less repeatable, which makes the file discipline matter more.

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Location sound recording: a checklist that prevents post production pain

Almost every post production emergency traces back to a setting nobody checked at call time. Here is the list.

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Sound design for film: building a track that serves the story

Good sound design is mostly restraint plus preparation. The technical part is making sure every asset arrives in the right shape.

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Lavalier microphone placement that survives the edit

A lav in the wrong place costs the dialogue editor an hour per scene. Placement is a post production decision made on set.

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The sound report: the document that saves the edit

A sound report is not paperwork. It is the map that tells post which take works, which microphone to use and where everything lives.

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Dialogue editing basics every filmmaker should understand

Dialogue editing is not noise reduction. It is a hundred small decisions about which microphone tells the truth of the scene.

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Timecode sync and dual system sound, explained without the mystique

Two devices, one clock. Timecode is simple until sample rates disagree, and then it is the reason your dialogue drifts by the end of the take.

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What a production sound mixer actually does on set

The sound department is judged on what post receives. Here is the job, the kit, and the handover that decides whether the shoot was a success.

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Multitrack audio in DaVinci Resolve: clip attributes, linked groups and Fairlight routing

Resolve can handle eight track production sound beautifully, as long as you tell it what the file is before you sync.

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The audio post production workflow, from card offload to final mix

Most audio post problems are handover problems. Here is the whole chain, and the file format decision that matters at every step.

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ADR recording: getting replacement dialogue that matches the set

ADR fails when it sounds like a booth dropped into a room. Matching the original perspective matters more than the microphone you use.

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Room tone: why every scene needs thirty seconds of nothing

The thirty seconds nobody wants to shoot is the thirty seconds that saves the dialogue edit. Here is how to record room tone that actually works in post.

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Does converting audio lose quality? A straight answer for each conversion

Some conversions are mathematically lossless. Some throw data away permanently. Knowing which is which saves your masters.

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Automatic audio sync: how the software works and why it sometimes refuses

Auto sync is not magic. It is correlation, and correlation needs something to correlate with.

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Poly WAV channel order: what track 1 actually is

Channel order is a convention, not a law. Knowing which convention your file follows prevents a whole class of post problems.

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How to work with poly WAV files in Final Cut Pro

Final Cut hides multichannel audio behind one control. Once you find it, eight tracks appear.

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Archiving production sound: folder structure, checksums and files you can reopen in 2036

Rushes outlive the project. What you keep, and how you name it, decides whether they are usable later.

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Sound design software for filmmakers: what you actually need at each budget

You do not need the industry standard to finish a short. You need the right tool for the job in front of you.

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How to bring poly WAV field recordings into Pro Tools

Pro Tools handles poly files well, but dialogue editing still happens on mono tracks with readable names.

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How to convert camera audio to WAV without breaking sync

Camera audio is the reference that gets a day of rushes in sync. Extracting it should change nothing about it.

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Why 48 kHz is the video standard, and what happens when you ignore it

48 kHz is not an arbitrary number. It divides cleanly into frame rates, and that is why every video spec asks for it.

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How to record clean dialogue for video: a beginner's technique guide

Dialogue is the spine of most films. Clean dialogue starts with distance, then room, then performance.

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Camera audio or external recorder: what you actually gain from dual system sound

Cameras record sound. Recorders record usable sound. The gap is mostly preamps, tracks and metadata.

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WAV vs AIFF for filmmakers: which one belongs in your project

The audio inside is the same. What differs is the paperwork wrapped around it, and in film the paperwork is the point.

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What audio format should you use for film delivery?

The wrong format gets rejected. The right format is usually one setting: 48 kHz, 24 bit WAV, mono stems.

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The best audio format for video editing, and why it is still WAV

Editing formats have one job: decode instantly, stay uncompressed, and never surprise you at conform.

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Short film audio checklist: what to pack and test before day one

The only thing worse than bad sound is discovering it was preventable. Print this checklist before your shoot.

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The Sound Devices poly WAV workflow, from bag to post

A Sound Devices card is not just files. It is a structured project, and treating it that way makes post trivial.

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Record audio with a smartphone for film: a beginner's guide

Your phone is already a recorder. Add a cheap lav and a quiet room, and the results are better than many built-in camera tracks.

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Audio drift explained: why sound slips over a long take and how to stop it

Perfect sync at the clap and half a frame out ten minutes later. That is drift, and it has causes you can eliminate.

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Zoom F8 poly WAV files explained, from card to timeline

The F8 puts eight inputs and a stereo mix in one file. Knowing what it wrote is half the transfer job.

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Boom vs lav for beginner filmmakers: which microphone for which shot?

A boom captures space and performance. A lav is close and consistent. Beginners should know both, even if they only own one.

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Denoising dialogue: how much is too much, and what to do before you reach for a plugin

The best noise reduction is choosing the right microphone track. Everything after that is damage control.

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How to import a poly WAV into Premiere Pro

Premiere will happily fold your eight track recording into stereo. Two settings stop it.

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How to record voice over for video: a home studio setup that works

A closet, a phone lav or a USB mic. Any of them can work if you control the room and the distance.

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How to import a poly WAV into DaVinci Resolve

Resolve imports poly WAVs fine. The trouble is that it treats them as one clip until you tell it otherwise.

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How to remove background noise from audio: a beginner's guide

Noise reduction is a bandage, not a cure. Here is how to use it without turning dialogue into soup.

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AAC vs MP3 vs WAV: which format belongs at which stage of your film

Three formats, three jobs. Problems start when a review format ends up in the mix session.

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How to merge mono WAV files into one multichannel file

Interleaving mono files back into one poly file is the reverse of a split, and just as lossless, as long as the parameters match.

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How to sync audio and video in Premiere Pro and DaVinci Resolve

Premiere and Resolve both automate the hard part. Here is how to make their sync tools work every time.

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How to start sound design: a first month that produces real work

Skip the tutorial spiral. Redesign one scene from scratch and you will learn more than in three months of videos.

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Why professional recorders write poly WAV by default

It is not a legacy quirk. Poly is the safest thing a recorder can write while cameras roll and cards fill.

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How to record audio for a short film: a complete beginner workflow

A short film lives or dies on dialogue. Here is the simplest reliable workflow, from set to timeline.

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Recording ambiences: the layer that makes everything else believable

Effects get noticed. Ambiences do the work. Two minutes of clean background saves a dialogue scene that footsteps never could.

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PolyWAV vs mono WAV: what is actually different

Same take, same samples, two packagings. The choice decides how easy your day is on set and how easy it is in the cutting room.

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How to get good audio when filming, even on a tight budget

Three feet from the mouth, out of the wind, and with a scratch track for sync. The rules that save every first film.

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Building a sound effects library you can actually search

A library is not a hard drive full of recordings. It is a naming convention you never break.

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Recording voice over that cuts into a film: room, mic and file discipline

Narration is judged in the first three seconds. Most of that judgement is about the room, not the voice.

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How to split a poly WAV file into mono tracks, step by step

Eight channels in one file, and post wants eight files. Here is how to deinterleave a poly WAV correctly, without resampling and without losing track names.

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Do you need a DAW to prepare audio files?

Creative audio work needs a DAW. Splitting, merging, converting and inspecting files usually does not. Here is where the line actually falls.

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Layering sound effects without turning everything to mud

Adding a sixth layer almost never fixes a weak effect. Clearing space for the three that matter usually does.

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Foley vs sound effects: two crafts that solve different problems

Footsteps are foley. A door explosion is an effect. The line matters because it decides who does the work and when.

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Sample rate vs bit depth: which one actually changes how your film sounds

Two numbers, two completely different jobs. Confusing them is how projects end up recorded at 96 kHz and 16 bit.

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Sound design software: what you actually need, and what you can skip

You need one DAW, one pitch tool and a way to prepare files. Everything else is preference dressed up as necessity.

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Wireless lavalier systems: frequencies, range and the failures you can prevent

Radio mics fail in ways a boom never does. Most of those failures are predictable, and preventable.

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Extract audio from MKV: picking the right stream every time

An MKV can hold a dozen audio streams. Extraction is easy; picking the correct one is where projects go wrong.

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Sound design in film: what the audience notices and what it never hears

Most of a film's soundtrack is invisible work. The visible part only lands because the invisible part holds it up.

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Mastering audio for film: what the final pass actually involves

There is no mastering plugin for film. There is a specification, and a series of checks that prove you met it.

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How to get audio from a video, step by step

Five steps from a video file to a usable audio file, with the checks that stop problems appearing at the mix.

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How to make sound effects: sources, layers and the three part recipe

Almost every convincing effect is three sounds pretending to be one. Once you hear the structure you cannot unhear it.

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How to record two microphones at once, and keep them usable in post

Two microphones only help if they arrive in post as two tracks. Recorded to one summed channel they mostly create phase problems.

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Rip audio from video: doing it cleanly on a production

Ripping audio takes ten seconds. Doing it so the next department can use the result takes a method.

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What does a sound designer do, day by day?

The credit sounds glamorous. The week is spotting sessions, library searches, layer building and stem exports.

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Audio bitrate for video: how much is enough, and where it stops mattering

Bitrate only matters relative to the stage of the pipeline. The mistake is using a delivery bitrate on a working master.

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The M&E track: what it is, why distributors demand it, and how to build one

Your film sells abroad only if the dialogue can be replaced. That is what the M&E track is for.

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Separate audio from video: the assistant editor's first job

Separating audio from picture is not a conversion trick. It is the step that turns rushes into something a cutting room can work with.

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An accessible audio converter every filmmaker can afford

High licence costs lock many filmmakers out of proper audio workflows. A browser-based toolkit lowers the barrier without lowering quality.

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A Nuendo alternative for audio file preparation and quick conversions

Nuendo's advanced features are wasted on simple file prep. A browser toolkit handles splitting, merging, downmixing and extraction without the licence overhead.

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Can a browser toolkit really replace Pro Tools or Nuendo for file prep?

You do not need a €600 DAW licence to split a poly WAV or extract audio from a video. Most production audio prep is mechanical, and a browser tool does it faster.

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What is sound design, and where does it start in a film?

Not just explosions and whooshes. Sound design is the decision about what the audience hears, and it starts long before post.

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Best audio settings for YouTube: loudness, codec and sample rate

YouTube will turn your mix down. Fighting that with a louder master only costs you dynamics and adds distortion.

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What a good video to WAV converter has to get right

Most online converters answer the wrong question. Here is the checklist a film workflow actually needs.

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You are a video editor, not a sound engineer: prep audio without learning a DAW

Buses, sends, inserts and bounce dialogs are a vocabulary you do not need to prepare files. Pick the task, not the software.

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Simpler than Pro Tools: five file jobs that should take under a minute

If a task is mechanical, the interface should be one page, one drop zone and one export button. Here are the five that qualify.

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No install, no plugin, no licence: converting production audio in the browser

The fastest converter is the one you do not have to install. Open a tab, drop a file, download the result.

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Do you really need a DAW to split, merge and convert production audio?

Most file prep jobs are not mixing jobs. Splitting, merging, mapping and converting need a converter, not a full digital audio workstation.

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Choosing a free audio editor: what each one is actually good at

There is no best free audio editor. There is a best tool for splitting rushes, another for repairing dialogue, another for mixing to picture.

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AVI to MP3: pulling audio out of legacy footage

AVI is the format archives keep handing you. Its audio can be pristine PCM or a compressed codec from 2003, and the difference matters.

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Converting audio to text: what to prepare before you hit transcribe

Transcription engines are only as good as the file. Ten minutes of file prep beats an hour of correcting a transcript.

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AAF export to Pro Tools: handles, media and the checklist that avoids a redo

The AAF is the contract between picture and sound. Getting it wrong wastes a mix day that nobody budgeted for.

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32 bit float recording: what it fixes on set, and what it does not

It ends clipping. It does not end noise, distance or bad mic placement. Here is the honest version.

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WebM to MP3: getting usable audio out of web video

WebM is a web delivery format, so its audio is already compressed. Converting it well means limiting the damage, not adding to it.

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How to remove music from a video without destroying the dialogue

If the music is glued into a stereo mix, there is no clean undo. There are good workarounds, and one very good prevention.

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MKV to MP3: extracting audio from Matroska files

Matroska files often hold several language tracks and a commentary. Extracting audio means choosing which stream you actually want.

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What is a sound designer, and how is the job different from a mixer or editor?

On a small crew one person wears all the hats. Knowing which hat is on decides what you ask for and when you ask for it.

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MOV to MP3: when a compressed extract is the right call

MP3 is a terrible master and an excellent messenger. Here is where it belongs in a film workflow, and where it does not.

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How to clean up audio: the order of operations that actually works

Most bad dialogue repair is not the wrong plugin, it is the right plugins in the wrong order.

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Exporting audio from Premiere Pro: mixdown, multitrack and the settings people miss

Premiere defaults to a stereo AAC mixdown. That is the wrong file for almost every sound handoff.

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Convert MOV to WAV without touching the original quality

A MOV from an Alexa, a C300 or an iPhone already contains uncompressed audio. Getting it out as WAV should not change a single sample.

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Audio not synced with video: the five causes, and how to tell them apart

Nudging the clip until the clap looks right only works for one of the five causes. The other four come back later in the timeline.

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How to export audio tracks from DaVinci Resolve without losing your channel layout

Resolve can hand you one mix, one file per track, or one interleaved poly file. Choosing wrong costs an hour in the next room.

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The WAV file format explained: chunks, headers and why it never dies

A format from 1991 that still runs every film set. Here is what is actually inside the file you hand to post.

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Voice-over editing for beginners: record, clean, and mix narration

A good voice-over makes your video feel professional. Here is a beginner-friendly workflow for recording, editing, and mixing narration.

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Free audio tools every beginner video editor should try

You do not need to spend money to start editing clean audio. Here are the best free tools and resources for beginner video editors.

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How to fix audio and video sync drift for beginner editors

Sync that starts fine but drifts by the end of the take is a common beginner problem. Here is why it happens and how to fix it.

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Audio editing terms every beginner video editor needs to know

Lost in audio terminology? Here is a simple glossary of the terms every beginner video editor needs to read meters, mix dialogue, and deliver clean audio.

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Compression basics for dialogue: smoother voice levels in any editor

Compression evens out dialogue levels so words do not disappear or jump out. Here is a beginner-friendly explanation of how it works in video editing.

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EQ basics for beginner video editors: cleaner dialogue in minutes

EQ is the fastest way to make dialogue sound professional. Here are the beginner moves that clean up voice without making it sound unnatural.

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Clip gain vs track volume vs automation: what beginner editors should know

Three different volume controls, three different jobs. Here is when to use clip gain, track volume, and automation in your video edit.

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Your first audio editing workflow: from import to clean export

Audio editing is easier when you follow a clear order. Here is the exact workflow beginner editors should use on every project.

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DaVinci Resolve Fairlight audio for beginner editors: first steps

Fairlight is a full audio workstation inside Resolve. Here is how beginner editors can navigate it, clean dialogue, and export a clean mix.

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Best audio editing software for beginner video editors in 2026

You do not need a Pro Tools rig to edit clean sound. Here is how Audacity, Audition, Reaper, and Resolve Fairlight compare for beginner video editors.

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A first audio mix checklist for beginner video editors

Before you export your first video, run this checklist. Dialogue, music, levels, noise, and export settings in one place.

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Dialogue and ambience balance: the first skill every video editor should learn

Cuts feel jumpy when the background changes. Learn how to balance dialogue and ambience so your scenes sound continuous and professional.

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Audio delivery formats explained: WAV, MP3, AAC, and AIFF for video editors

WAV, MP3, AAC, or AIFF? Here is a clear comparison of audio formats for video editors, with practical advice on when to use each one.

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Stereo mixing for beginner editors: LoRo, panning, and simple balance

LoRo, panning, and stereo width are not just for music producers. Here is how beginner editors can make clean, balanced stereo mixes for video.

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How to choose music and sound effects for your video without drowning the dialogue

Music and effects make a video feel finished. Here is how to choose them, place them, and mix them so the dialogue stays clear and the story stays strong.

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How to export audio from a video project for editing, mixing, or delivery

A bad export can undo a clean edit. Here is how to export audio from your video project for editing, mixing, or final delivery without losing quality.

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How to reduce background noise in video editing without ruining the dialogue

Noise reduction is a rescue tool, not a magic button. Here is how beginner editors can clean hiss, hum, and room tone without making voices sound underwater.

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Audio levels for beginner video editors: loudness, peaks and headroom

Stop guessing the yellow line. Here is what every beginner video editor needs to know about dialogue levels, music beds, peaks, and final loudness.

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How to sync audio and video in Premiere Pro and DaVinci Resolve

Bad sync ruins an edit. Learn how to align external recorder audio with camera video using waveform, timecode, or a simple clap sync.

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How to edit audio in Premiere Pro: a beginner editor's guide

Premiere Pro can do more than cut picture. Here is how a beginner editor can clean dialogue, balance music, and export audio without touching a DAW.

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Phase cancellation: why two good microphones can sound worse than one

Sum a boom and a lav and the dialogue can get thinner, not fuller. Here is why, and how to catch it before the mix.

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Extracting audio from video: FFmpeg commands and a browser alternative

Copy the stream, do not re-encode it. The three commands worth remembering, and what to do when you cannot install anything.

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5.1 surround sound explained: channels, order and downmixing

Six channels, two rival orderings and one channel everybody misunderstands. A working guide to 5.1 for delivery.

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Audio mixing for picture: balancing dialogue, effects and music

Mixing for picture is not music mixing. Dialogue leads, everything else negotiates for the space left over.

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Poly WAV vs mono WAV: which one should you hand to Resolve or Premiere?

Same recording, two packages. One keeps the take together, the other keeps your timeline sane. The right answer depends on which NLE opens the project.

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Merging audio files: joining end to end versus combining channels

Combining channels and concatenating clips are opposite operations. Picking the wrong one is why your merged file sounds like mush.

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Field recorders: what to look for beyond the track count

Track count is the number on the box. Timecode stability, metadata and file naming are what post production actually cares about.

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Sound design for film: building a scene from separate layers

Almost nothing you hear in a finished film was recorded as one sound. Here is how the layers are built and kept manageable.

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Noise gates on dialogue: when they help and when they wreck a take

A gate is a fast automatic mute. Used well it cleans up a track; used badly it chops the life out of a performance.

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Choosing an audio interface for film sound work

Converters, preamps and a clock in one box. What matters for post production sound, and what is marketing.

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XLR cables on set: what the three pins actually do

Three pins, one ground, and the reason your boom stays quiet next to a lighting rig. A practical guide to XLR for film crews.

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The production sound mixer: the person who decides what post inherits

Everything post can do with the dialogue is decided on set. The production sound mixer is the person making those decisions in real time.

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The timecode slate: what those numbers do after the clap

A timecode slate is a clock you can film. It exists so an assistant can sync a day of rushes in minutes instead of hours.

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Mono to stereo: what actually happens, and when it is a bad idea

You cannot create stereo from mono. You can create a two channel file, and that is usually exactly what the delivery spec wants.

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EQ for vocals and dialogue: the four moves that do 90 percent of the work

Most vocal EQ is four decisions. Learn where they live and you can make a voice clear in under a minute.

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Audio ducking: how to keep music under dialogue without riding a fader

Ducking lowers the music whenever someone speaks. Done well it is invisible. Done badly it pumps like a car alarm.

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ADR recording: how to replace a line so nobody notices

ADR fails when it sounds like a booth. Matching microphone, distance and room is more important than the performance being perfect.

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Foley sound: why footsteps are recorded twice and cloth is a performance

Foley is not sound effects. It is a performance recorded to picture, and it is the reason a character feels physically present in a shot.

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What a boom operator actually does, and why the pole is the easy part

Holding a pole is the visible part. The job is anticipating a scene you have heard once and staying out of a frame you cannot see.

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WAV file size: the simple formula, and how much a shoot day really weighs

One multiplication tells you how much card, drive and backup you need. Here it is, with the numbers a production day actually produces.

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What is a lavalier microphone, and how to get a clean track from one

A lavalier gives you a close, consistent voice wherever the actor goes. It also gives you clothing rustle, if you rig it badly.

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Dolby Atmos explained: beds, objects and why your stereo mix still matters

Atmos is not more speakers, it is metadata. The mix describes where sounds are and the room decides how to play them.

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Reading an audio waveform: what the shape actually tells you

A waveform is a level map, not a picture of sound. Learn to read one and you can diagnose a take before you hear a single second of it.

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How to sync audio in Premiere Pro when the waveforms will not cooperate

Timecode first, waveform second, clapper third. And when all three fail, the problem is usually inside the file rather than inside Premiere.

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Audio latency explained: where the milliseconds come from and how to get them back

Latency is a queue, not a mystery. Every stage adds a few milliseconds, and only some of them are yours to shorten.

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What is dBFS, and why your meters disagree with your ears

Decibels relative to full scale. One reference point, no positive numbers, and a hard ceiling you cannot negotiate with.

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Shotgun microphones: how they work, and when they are the wrong choice

A shotgun does not zoom. It cancels sound arriving from the sides, and only above a certain frequency, which explains everything you dislike about it indoors.

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Turning a video into an MP3 or WAV without re-encoding twice

Interviews, webinars, camera files: sometimes all you need is the soundtrack, at the quality the camera actually recorded.

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What is phantom power, and when do you actually need it?

It is a DC voltage sent up the same cable that carries your audio. Simple idea, several ways to get it wrong.

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Microphone polar patterns: what cardioid, hypercardioid and figure of eight really do

A polar pattern is a map of what a microphone ignores. Choosing well is cheaper and faster than fixing a room in post.

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Gain staging explained: where your levels should sit, from mic to master

Gain staging is not a plugin setting, it is a chain of decisions. Get the first one right and everything downstream becomes easy.

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How to remove background noise from audio without destroying the voice

Noise reduction is the last step, not the first. Here is the order that keeps dialogue sounding like a room instead of a swimming pool.

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WAV vs MP3: what you actually hear, and what you actually lose

The honest answer is not that WAV always sounds better. It is that WAV always behaves better.

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5.1 and 7.1 channel order: SMPTE, film order and why files get scrambled

Your centre channel is in the surrounds and the dialogue is coming from behind. Nine times out of ten, nothing is broken except the channel order.

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What is the LFE channel, and why it is not a subwoofer channel

The point one in 5.1. Misunderstood on nearly every delivery, and the single easiest way to ruin a stereo downmix.

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5.1 to stereo: the LoRo downmix explained

Every 5.1 mix eventually needs a stereo version. Doing it by simply summing channels is how dialogue gets buried and peaks go red.

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Convert WAV to AIFF without losing metadata or quality

Same samples, different wrapper. Converting WAV to AIFF is lossless, but the metadata is where people quietly lose information.

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How to fix clipped audio, and how to tell when it is unfixable

Clipping is missing data, not loud data. Some of it can be reconstructed convincingly, some of it can only be hidden, and knowing which saves hours.

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Audio compression explained: dynamics, not file size

Two things are called compression in audio and they have nothing to do with each other. This one is about controlling loud and quiet, not shrinking files.

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Audio bit depth explained: 16, 24 and 32 bit float in plain language

Bit depth is not resolution in the photographic sense. It is headroom and noise floor, and confusing the two leads to a lot of bad advice.

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MP3 bitrate explained: what 128, 192 and 320 kbps actually change

Bitrate is a budget. The encoder spends it on the parts of the sound it thinks you will notice, and runs out earlier than you would like at low settings.

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What is LUFS, and why your mix gets turned down after upload

Your meters said minus one. The platform still turned you down by six. That gap is LUFS, and it decides how your work actually sounds to an audience.

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Lossless audio formats: when FLAC beats WAV, and when it does not

Lossless and uncompressed are not synonyms. Understanding the difference is what lets you halve your archive size without ever touching quality.

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Splitting a stereo file into two mono files, and when you should

Half the stereo files on a shoot are not stereo at all. They are two unrelated mono sources sharing a container.

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Audio file formats explained: what to record, what to edit, what to deliver

Six formats, three jobs. Recording, editing and delivery each want something different, and picking wrong costs you either quality or a very long upload.

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Normalising audio: peak, RMS and loudness, and which one you need

Normalising to 0 dBFS is the default in most tools and almost never the right choice for professional delivery.

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Sample rate conversion, explained without the maths

Resampling is not a setting, it is a calculation. Doing it twice, or at the wrong moment, is how audio drifts out of sync.

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How to choose an audio file converter you can trust

There are hundreds of audio converters. Very few tell you what they did to your file, and fewer still keep it off their servers.

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How to extract audio from MP4 without losing quality

The audio inside your MP4 is already compressed. The only question is whether you make it worse on the way out.

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How to rename multiple files at once, and what to check first

Every operating system can rename a thousand files in one click. None of them can undo it once the session has been saved.

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Metadata workflow: from card to searchable library in one pass

Doing it once properly costs twenty minutes per card. Doing it later costs a weekend and you will still get half of it wrong.

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Naming production sound on set so post never calls you

Post production judges your day entirely by what the filenames and metadata say. Five minutes of recorder setup buys a week of goodwill.

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Mono vs stereo recording: why dialogue stays mono

One microphone, one channel. The rule is simple, and the exceptions are where the interesting work happens.

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Why your poly WAV shows Track 1 to Track 8, and how to get real names

Boom, Lav Marie, Plant Kitchen. Or Track 1, Track 2, Track 3. The difference is one metadata block and a recorder someone bothered to configure.

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How to organise a sound effects library you will actually use

Most libraries are not badly organised. They are organised twice, in two incompatible ways, by the same person eighteen months apart.

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What a WAV metadata editor actually edits

A WAV is not just samples. It carries chunks of text and timing that decide whether your file syncs, sorts and searches, or just plays.

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A file naming convention for audio that still works in three years

Every naming convention works on day one. The test is whether it survives version 14, a second recordist and a client who renames everything.

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How to rename audio files in batch without breaking your session

The rename itself takes four seconds. The relink that follows can take a day. Do it in the right order and it takes neither.

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How to read the UCS category list without losing an afternoon

Category, subcategory, CatID, synonyms. Four columns, one spreadsheet, and a lot of people who give up on the second scroll.

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FLAC to WAV: when lossless still needs converting

FLAC to WAV is the rare conversion that costs you nothing in audio quality. It can still cost you metadata if you are careless.

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UCS explained: the naming convention that finally made sound libraries searchable

Two sound designers, two naming habits, zero shared search results. UCS is the community standard that fixes it, and it takes an afternoon to learn.

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WAV vs AIFF: does the choice still matter in 2026?

Same audio, different container. The decision comes down to metadata and who receives the file.

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24 bit vs 32 bit float: what actually changes on set

The marketing says you can stop riding gain. The physics says something slightly more nuanced.

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Converting M4A to WAV for editing, the right way

Phone recordings, voice memos and camera scratch audio arrive as M4A. Editors want WAV. Here is what happens in between.

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48 kHz vs 96 kHz: which sample rate should you actually shoot at?

The honest answer for most productions is 48 kHz. The interesting part is the small set of cases where it is not.

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Room tone: what it is, how to record it, and why editors beg for it

Thirty seconds of nothing is the most reusable thing you will record all day. Here is how to get it right.

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How to convert WAV to MP3 without wrecking your audio

MP3 is the format everyone can open. Here is how to get there from a WAV master without turning a clean recording into something thin and swirly.

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How to sync audio and video: a practical guide for dual system sound

Three ways to sync, one right answer for each situation, and the preparation that makes all three faster.

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Timecode in WAV files: how it is stored and why it drifts

Most sync failures are not sync failures. They are frame rate misunderstandings, and you can spot them before the assembly starts.

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BWF metadata explained: bext, iXML and the data hiding in your WAV files

Every professional WAV carries a hidden layer of production data. Knowing what is in there saves hours of guesswork in post.

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What is a poly WAV, and why does your editor keep asking for mono files?

Boom, lavs, plants and a mix, all inside one file. Poly WAVs are the default on modern field recorders, and the first thing many post workflows reject.

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