What is sample rate and why does it matter?

How many samples per second the audio was recorded at (e.g. 44100 Hz for CD-quality) — a mismatch between a file's sample rate and what a platform expects can cause pitch/speed issues on playback.

Does this tool upload my audio anywhere?

No — the file is decoded locally with the Web Audio API; nothing is sent to a server.

Audio Info Checker

Check an audio file’s duration, sample rate and channel count.

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Choose an audio file

Files never leave your device — this runs entirely in your browser. Output is WAV.

Related tools

Trim Audio
Audio Fade In / Fade Out
Audio Volume Adjuster
Mono ↔ Stereo Converter

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How it works

1
Choose an audio file

Up to 100 MB.
2
Info read instantly

Duration, sample rate and number of channels.
3
No conversion needed

It decodes the file only to read its properties.

FAQ

What is sample rate and why does it matter?: How many samples per second the audio was recorded at (e.g. 44100 Hz for CD-quality) — a mismatch between a file's sample rate and what a platform expects can cause pitch/speed issues on playback.
Does this tool upload my audio anywhere?: No — the file is decoded locally with the Web Audio API; nothing is sent to a server.