1-minute note, MP3 64 kbps
- Input
- 60 s
- Expected output
- 0,48 MB
8,000 bytes per second.
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convert opus voice notes to mp3
Drag in the .opus or .ogg files, pick MP3 and use 96 kbps for voice. If the volume is low, open the options and turn on Normalize volume; to remove the silence at the ends, turn on Trim silence.
8,000 bytes per second.
A good choice for speech.
12,000 bytes per second × 300.
Only worth it if the audio has background music.
32,000 bytes per second × 300 + 44.
Input is whatever your browser can decode: MP3, WAV, OGG, OPUS, FLAC, M4A, AAC and WEBM audio, plus the audio track of MP4 and WEBM videos. Output is MP3, WAV, FLAC, OGG Opus and M4A (AAC). The last two depend on the browser's encoder, and the screen tells you when one is missing.
Because the file is Opus in Ogg, and not every player or editor has that decoder. MP3 solves it because it is universal. If your program accepts WAV, that works too and avoids another compression.
Yes, up to 40 per queue. They are converted one at a time and, once two or more are done, you download everything as a ZIP. The per-file limit is 300 MB and 30 minutes, far above any voice message.
No. The file is decoded and converted in the browser, and nothing is uploaded. Closing the page erases the queue and the results, which matters when the audio is personal.
MP3 is written at a constant bitrate (CBR), the same across the whole file.
Conversion happens in your browser. No file is sent to a server.