W64 → MP3 / online converter

W64 to MP3 Converter

Convert a long Sony Wave64 recording to MP3 to shrink it.

01 / how to

How to convert W64 to MP3

01

ADD YOUR W64

Drop the W64 file into the box above or choose it from your device.

02

CONVERT TO MP3

MP3 is already selected. Press Convert and wait a few seconds.

03

DOWNLOAD

Save the finished MP3 file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

  • Sample rate and channels (mono, stereo, even 5.1 surround) are read as they are
  • Sony Wave64 files from field recorders are supported
  • Saved as MP3 at 192 kbps, about 1.4 MB per minute, a good balance of quality and size
  • Plays on every phone, car stereo and player

Good to know

  • MP3 supports 48 kHz at most, so a 96 kHz file is reduced to 48 kHz, and surround sound (5.1) is mixed down to stereo.
  • Lossy compression permanently removes some detail. Keep your original if you want to archive the recording.

03 / formats

W64 vs MP3

W64

A W64 file is Sony Wave64: a WAV-style file built for very long recordings, as the normal WAV format stops at 4 GB. Used in pro audio and field recorders.

Used in: Pro audio · Long field recordings

MP3

An MP3 file is the most common compressed audio format — small file size, works everywhere, though it loses some audio quality in the process. It's what you'll get from most music downloads, podcasts, and voice recordings.

Used in: Music downloads · Podcasts · Universal playback