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WAV Audio Info

Data

Read sample rate, channel count, bit depth, and duration directly from a WAV file's RIFF/fmt/data chunk headers

Drop in a WAV file and get its audio format, channel count, sample rate, bit depth, byte rate, and duration back immediately, without decoding a single audio sample. It reads this straight out of the file's RIFF container header, walking the fmt and data chunks the same way an audio player would before it starts playback, which keeps it fast even on a large file and works even if the actual PCM data is corrupted. It only understands the canonical RIFF/WAVE container, so the rarer RF64 variant used for files over 4GB, or compressed formats like MP3 wrapped in other containers, aren't supported here.

audiowavmetadataformatduration

How to use WAV Audio Info

  • 1.Drop a .wav file (or click to browse) to read its format, channels, sample rate, bit depth, and duration.
  • 2.Check the byte rate and data size fields to estimate how much bandwidth or storage a recording needs before transcoding it.
  • 3.Use the REST API or an SDK to batch-read metadata across a folder of WAV files, e.g. to audit a sample library's formats.

Frequently asked questions

Does this decode or play the actual audio?
No, it only reads the RIFF/fmt/data chunk headers to report metadata, it never decodes or plays back any audio samples.
Is my file uploaded to a server?
In the browser tool, no, the file is read and parsed entirely client-side using the File API. The REST API and SDKs do process the bytes you send them, same as any other API call.
Does it support compressed audio like MP3?
No, this tool only reads the uncompressed PCM (or IEEE float) RIFF/WAVE container format, MP3 and other compressed formats use a completely different structure.
What if my WAV file uses the RF64 extension for files over 4GB?
RF64 isn't currently supported, this tool expects the classic RIFF header with a 32-bit size field.

Use via API, SDK, or MCP

cURLcurl "https://api.utilix.tech/v1/tools/wav-audio-info" \
  -H "Authorization: Bearer utx_live_..."
# Free: 1,000 req/day · Pro: 10,000 req/day

Get an API key from your dashboard · Full API docs →

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