WAV files are large because they aren't compressed: a minute of CD-quality stereo takes about 10 MB. Convert them to MP3 and they become roughly 10 times smaller, small enough to email, upload or share on WhatsApp. Add one file or many; the conversion runs in your browser.
Converts WAV to MP3, typically about 10 times smaller
Several files in one go
Runs in your browser: nothing is uploaded
Shows the size before and after
Also takes M4A, FLAC, AAC, OGG and WMA
Free, no signup, no watermark
Voice recorders, mixers and DAWs export WAV. Convert to MP3 before emailing or sending it in a chat.
Forms, LMS portals and podcast hosts often cap uploads. An MP3 of the same recording fits where the WAV doesn't.
Keep MP3 copies of long recordings on your phone and archive the WAV masters elsewhere.
Uncompressed WAV at 44.1 kHz, 16-bit stereo is about 10 MB per minute. A standard MP3 at 128 kbps is about 1 MB per minute. So a 30-minute recording goes from around 300 MB to around 30 MB.
MP3 is a lossy format, so some detail is removed. For speech, interviews and most listening you won't notice. If you will edit or master the audio later, keep the WAV and send the MP3.
After converting, shrink the MP3 further for email, WhatsApp and uploads without wrecking the sound.
How to run an IVR in Tamil, Telugu, Bengali, Marathi, Gujarati, Kannada, Malayalam, Odia, Punjabi or any other language using recorded audio prompts: writing the script per language, recording tips, file formats (mp3, wav, m4a, ogg up to 5 MB) and keypad input.
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