AAC в WAV
Длительность-
Частота-
Каналы-
Размер WAV-
Конвертация выполняется через Web Audio API. Поддержка исходного формата зависит от браузера.
Tool guide
AAC is the lossy format you get from YouTube rips, Apple Music exports and phone screen recordings. It plays everywhere, but older Audacity builds, game engines and speech-recognition pipelines expect raw PCM and refuse AAC outright. This page hands the track to the browser's own decoder and writes the resulting samples out as a plain WAV file. Nothing leaves the machine, so work recordings can go through it safely.
That is expected. AAC stores audio lossily compressed, while WAV holds a raw sample stream: a minute of 48 kHz stereo at 16 bits costs about 11 MB no matter what is in it. An eight- to twelve-fold jump in size is the normal price of a format every editor and library can read.
No. Whatever the encoder discarded is gone for good. The WAV preserves exactly the audio you already hear in the AAC file and adds no detail to it. The point of the conversion is compatibility and being able to keep editing without another lossy generation, not better sound.
It depends on the browser. Chrome, Edge and Safari decode plain AAC-LC reliably; Firefox leans on system codecs and stumbles on some Linux builds. Exotic profiles such as HE-AAC v2 and DRM-protected files from old stores will not open anywhere and have to be remuxed first.
Whatever rate the browser uses for audio output, usually 48000 Hz and sometimes 44100. Decoding goes through the page audio engine, which resamples any source to the sound card rate. If the original rate matters for your project, check it in an editor afterwards and resample by hand.
There is no hard cap, but the decoded audio sits in tab memory in full and WAV runs around 660 MB per hour of stereo. On a phone or a modest laptop, split hour-long material beforehand or the tab may be killed halfway through the conversion.
Nowhere off the device. The browser opens the selected file locally, all parsing happens in that same tab, and the result is handed back as a link to an in-memory object. No network request carries the audio, which you can confirm in the Network panel of the developer tools.
Before: screen-audio.aac, 12 minutes, stereo, 11 MB
After: screen-audio.wav, roughly 120 MB — opens straight in Audacity or Reaper
Before: call.aac, mono, 3 minutes
After: call.wav in PCM — accepted by Whisper and Vosk scripts with no pre-step
Your rating and feedback help decide what to improve next.