G.723.1 (Audio coding standard)
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Information for Authority record
Name (Latin)
G.723.1 (Audio coding standard)
Other forms of name
ITU G.723.1 (Audio coding standard)
ITU-T Recommendation G.723.1 (Audio coding standard)
See Also From tracing topical name
Sound Recording and reproducing Digital techniques Standards
Speech processing systems Standards
MARC
MARC
Other Identifiers
Wikidata:
Q2389402
Library of congress:
sh 98006959
Sources of Information
- Video telephony : real time G.723.1 speech coding, 1998.
- WWW:ITU Newsletter, No. 7, 1996. Inside Info(ITU T Recommendation G.723.1, Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s)
- AltaVista, Nov. 3, 1998(titles: ITU G.723.1)
- G.723.1 Tutorial, Nov. 3, 1998(The standard G.723.1 is a speech compression algorithm that is standardized by the International Telecommunication Union (ITU) ... G.723.1 was originally created by Audio Codes and others for the ITU-T speech coding standard for PSTN videotelephony and videoconferencing.)
Wikipedia description:
G.723.1 is an audio codec for voice that compresses voice audio in 30 ms frames. An algorithmic look-ahead of 7.5 ms duration means that total algorithmic delay is 37.5 ms. Its official name is Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s. It is sometimes associated with a Truespeech trademark in coprocessors produced by DSP Group. This is a completely different codec from G.723. There are two bit rates at which G.723.1 can operate: 6.3 kbit/s (using 24-byte frames) using a MPC-MLQ algorithm (MOS 3.9) 5.3 kbit/s (using 20-byte frames) using an ACELP algorithm (MOS 3.62)
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