Format
Adaptive Multi-Rate Wideband Audio
Summary
- Name
- Adaptive Multi-Rate Wideband Audio
- Identifiers
-
- MIME: audio/amr-wb
- PUID: fmt/954
- Format type
- Audio
- Description
- Adaptive Multi-Rate Wideband (AMR-WB) is a wideband speech audio coding standard based on Adaptive Multi-Rate encoding. AMR-WB provides a speech bandwidth of 50–7000 Hz compared to narrowband speech coders which in general offer around 300–3400 Hz. AMR-WB was developed by Nokia and VoiceAge.
- File extensions
-
awb - Submitted by
- Digital Preservation Department / The National Archives
- Developed by
- Nokia / Nokia
- Supported by
- Nokia / Nokia
Internal signatures
AMR-WB
- Description
- BOF: #!AMR-WB 0x0A Format description: https://tools.ietf.org/html/rfc4867
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
2321414D522D57420A- Endianness
- None
Changelog
-
V88
- Release date
- 27 September 2016
-
Added format
Adaptive Multi-Rate Wideband Audio: Full entry added.
-
Added signature
Adaptive Multi-Rate Wideband Audio: Signature developed through PRONOM Research.