- Extension
- .gsm
- .opml
- Format
- Binary
- Text
- Category
- Audio
- Document
- Developer
- European Telecommunications Standards Institute (ETSI)
- Dave Winer
- 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.
- OPML (Outline Processor Markup Language) is an XML-based format used to exchange outline-structured information. It is most commonly used to share lists of web feed subscriptions (such as RSS or Atom feeds) between feed readers and aggregators.
- MIME Type
- audio/x-gsm
- text/x-opml
