convert audio to mp3 at 128 kbps
128 kbps is the classic balance of small size and decent sound, about 1 mb per minute.
runs on your device · free · no sign-up
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how to convert audio to mp3 at 128 kbps
- drop your audio file on the box above, or choose it from your device.
- set the bitrate, and tick mono for voice recordings.
- optionally trim with the sliders or add a fade, and check the expected size.
- press convert to mp3 and download the result.
128 kbps is good for podcasts, spoken audio, background music and sending a demo over chat. it is not ideal for critical listening to dense music, where cymbals and strings can sound a little thin.
for a shorter file, trim the silence at the start and end with the sliders or tick mono for talk recordings, which brings 128 kbps stereo down to the equivalent of about 70 kbps of stereo. if storage is not an issue, step up to 192 kbps.
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frequently asked questions
is 128 kbps good enough?
for speech and casual listening, yes. for music on good headphones, choose 192 kbps or more.
how big is a song at 128 kbps?
about 3.8 mb for a 4 minute track.
can i go smaller?
yes, down to 64 kbps. use mono for voice if you need very small files.