- Extension
- .gsm
- .ac3
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- European Telecommunications Standards Institute (ETSI)
- Dolby Laboratories
- 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 file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and game consoles.
- MIME Type
- audio/x-gsm
- audio/ac3
