AAC to WAV

Convert AAC to WAV in three steps

1. Choose one or more AAC files, or try the included sample.
2. Convert to WAV. Keep this tab open while it works.
3. Listen to the preview and save individual files or download the batch as a ZIP.

When AAC to WAV is the right move

A .aac file is a bare AAC audio stream without an MPEG-4 wrapper, and you will meet it in radio recorders, streaming captures, and Android apps. WAV is the format editors, samplers, burners, and speech tools accept without fuss, so converting closes the gap between the file you have and the tool you need. Everything stays on your device while it runs, so private recordings never reach a server.

What happens to the audio inside

The converter opens the AAC file and reads a raw AAC stream in ADTS frames. It decodes that audio and writes uncompressed 16-bit PCM that you can edit repeatedly without extra generation loss. Unpacking AAC audio to WAV does not add detail that the source never had. It gives you a plain, uncompressed copy that anything can read.

Size and settings

One minute of CD-quality stereo takes about 10 MB, and mono at 44.1 kHz takes about 5 MB. Choose WAV when the next step is editing, transcription, or loading the sound into hardware. Choose MP3 when you only want to share or store it. The sample rate and channel layout of your AAC file are carried across, so a mono recording stays mono.

Troubleshooting and tips

Captures from internet radio can start partway through a frame, which leaves a brief click at the start of the output. Trim it in your editor if you hear it. Convert a short file first to confirm that your browser can decode it, then run the rest as a batch and download the ZIP. Keep the original AAC until you have listened to the WAV from beginning to end.