- Extension
- .gsm
- .w64
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- European Telecommunications Standards Institute (ETSI)
- Sony
- Description
- A lossy file format used to compress speech in Global Standard for Mobile (GSM) telecommunications. It is very effective for reducing audio file size. However, encoding and decoding audio signals severally is discouraged as the final product will have a lot of noise. Popular with some voice mail software but it is CPU intensive.
- Audio container file created in Sony's Wave64 format, which is supported by various Sony audio editing programs; useful for audio editing because it supports arbitrary sampling frequencies, channels, and bit depths.
- MIME Type
- audio/x-gsm
- audio/x-wav
