Before you edit, convert or publish an audio file, it pays to know its technical specifications. The Audio Info tool decodes your file and reports its true duration, number of channels, sample rate and total sample count, so you understand exactly what you are working with.
How to use the Audio Info tool
- Upload an audio file.
- Read the decoded properties displayed instantly.
Why these numbers matter
Each property tells you something useful. The sample rate (44,100 Hz is CD quality) affects compatibility with other software and hardware. The channel count tells you whether the file is mono or stereo, which matters for voice versus music. The exact duration is handy for planning edits, trims and timings. Reading these from the decoded audio — rather than trusting a possibly inaccurate file header — gives you the real, playable values.
Tips for using the details
- Mono is fine for speech; stereo matters mainly for music and ambience.
- Match sample rates across clips you intend to combine.
- Use the duration to plan your start and end times before trimming.
- Unusual values can explain why another program rejected the file.
The information comes from decoding the audio in your browser's Web Audio engine, so it reflects the genuine playable content, and the file is never uploaded.
Quick reference
| Property | Detail |
|---|---|
| Input | MP3, WAV, M4A, OGG |
| Reports | Duration, channels, sample rate |
| Source | Decoded audio buffer |
| Output | On-screen details |
| Upload | None |