Media Studio · 29 tools

Audio Tools

30 free audio tools: trim, convert, merge, normalise, change speed or pitch, record your voice and test speakers and microphones in the browser.

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About Audio Tools

This category has 30 audio tools, from simple cuts to sound checks. The Audio Trimmer shows a waveform so you can cut exactly where a sentence or beat ends, the Audio Converter re-encodes files to WAV, Opus or OGG, and the Ringtone Maker turns a song into a short clip with fades. Other tools normalise loudness, remove silence, change speed or pitch, reverse a clip, merge several files or split stereo channels.

There are also tools for checking equipment and learning about sound. The Microphone Tester shows a live level meter, the BPM Detector estimates the tempo of a track, and the tone and noise generators produce test signals you can download as WAV. Audio is decoded and processed in your browser, so recordings and songs are not uploaded. MP3 output and rare formats such as AMR or WMA use an optional ffmpeg download of about 30 MB that only loads when you tick it.

Frequently asked questions

Why is MP3 not a default output?
Browsers can encode WAV, AAC and Opus natively, but not MP3. Tools that offer MP3 load an optional ffmpeg encoder from jsDelivr when you allow it.
Is the hearing test a medical test?
No. The Hearing Frequency Test plays a sweep for curiosity. Your headphones and volume affect the result, so see an audiologist for a real hearing check.
Can I record my voice without an app?
Yes. The Voice Recorder records from your microphone, lets you play it back and saves the file to your device.
How accurate is the BPM detector?
It works well on music with a steady beat. Songs with tempo changes or soft percussion are harder, and the estimate can land on half or double the real tempo, so check it by ear.

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