The Adaptive Multi-Rate (AMR, AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR is a multi-rate narrowband...
14 KB (1,444 words) - 18:47, 20 September 2024
Adaptive Multi-Rate Wideband (AMR-WB) is a patented wideband speech audio coding standard developed based on Adaptive Multi-Rate encoding, using a similar...
18 KB (2,046 words) - 01:00, 8 March 2025
Extended Adaptive Multi-Rate – Wideband (AMR-WB+) is an audio codec that extends AMR-WB. It adds support for stereo signals and higher sampling rates. Another...
6 KB (596 words) - 10:31, 3 April 2025
Services (EVS) Codec TS 26.441 using Enhanced Voice Services (EVS) Codec Extended Adaptive Multi-Rate – Wideband (AMR-WB+) Variable-Rate Multimode Wideband...
14 KB (1,319 words) - 12:32, 8 March 2025
The codec is still widely used in networks around the world. Gradually FR will be replaced by Enhanced Full Rate (EFR) and Adaptive Multi-Rate (AMR)...
5 KB (698 words) - 23:43, 1 November 2024
formats and related codecs. Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and...
51 KB (5,407 words) - 04:52, 17 May 2025
AptX (redirect from AptX Adaptive Audio)
audio processing technology) is a family of proprietary audio codec compression algorithms owned by Qualcomm, with a heavy emphasis on wireless audio...
32 KB (2,738 words) - 02:19, 29 March 2025
the audio coding format, the container containing the raw audio data, and an audio codec. A codec performs the encoding and decoding of the raw audio data...
17 KB (913 words) - 12:53, 26 May 2025
distortion that is caused by audio signals with frequencies higher than the Nyquist frequency (half the sampling rate). A digital audio signal may be stored or...
24 KB (2,810 words) - 20:02, 24 May 2025
Variable bitrate (redirect from Multi-pass encoding)
segments. The average of these rates can be calculated to produce an average bitrate for the file. MP3, WMA and AAC audio files can optionally be encoded...
11 KB (1,031 words) - 08:52, 23 January 2025
natural language text Audio/modem riser, on a computer motherboard Adaptive Multi-Rate audio codec for speech coding Adaptive mesh refinement in numerical...
2 KB (301 words) - 20:59, 11 June 2025
TS 26.401 V6.0.0 (2004-09), General Audio Codec audio processing functions; Enhanced aacPlus General Audio Codec; General Description (Release 6)" (DOC)...
71 KB (7,826 words) - 19:27, 27 May 2025
linear prediction (RCELP) Low-delay CELP (LD-CELP) Adaptive Multi-Rate (used in GSM and 3GPP) Codec 2 (noted for its lack of patent restrictions) Speex...
20 KB (1,822 words) - 09:52, 24 May 2025
Α video codec is software or a device that provides encoding and decoding for digital video, and which may or may not include the use of video compression...
43 KB (2,827 words) - 10:52, 18 March 2025
Full Rate Enhanced Full Rate (EFR) Adaptive Multi-Rate (AMR) Adaptive Multi-Rate Wideband (AMR-WB) Extended Adaptive Multi-Rate - Wideband (AMR-WB+) ETSI...
2 KB (264 words) - 22:01, 25 April 2024
Pulse-code modulation (redirect from Adaptive Differential PCM)
doubled. The technique is detailed in the G.726 standard. Audio coding formats and audio codecs have been developed to achieve further compression. Some...
34 KB (4,095 words) - 22:48, 24 May 2025
RTP payload formats (redirect from RTP Audio Video Profiles)
Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs, Proposed Standard. RFC 5188 – RTP...
16 KB (2,907 words) - 06:10, 3 June 2025
shown that multi-agent Q-learning can be applied to improve QoE fairness among multiple adaptive streaming clients. HTTP-based adaptive bit rate technologies...
35 KB (3,863 words) - 10:11, 6 April 2025
Speech coding (redirect from Speech codec)
as the G.729.1 wideband audio codec introduced in 2006, Apple's FaceTime (using AAC-LD) introduced in 2010, and the CELT codec introduced in 2011. Opus...
16 KB (1,760 words) - 22:11, 17 December 2024
Rate Full Rate Adaptive Multi-Rate (AMR) Adaptive Multi-Rate Wideband (AMR-WB) Extended Adaptive Multi-Rate - Wideband (AMR-WB+) Comparison of audio coding...
5 KB (527 words) - 21:58, 25 April 2024
DTS, Inc. (redirect from DTS Coherent Acoustics codec)
a similar codec without needing separate DTS CD-ROM media. DTS is related to the aptX audio coding format, and it is based on the adaptive differential...
46 KB (5,636 words) - 15:14, 28 April 2025
FFmpeg (redirect from Snow (codec))
libraries are libavcodec, an audio/video codec library used by many commercial and free software products, libavformat (Lavf), an audio/video container mux and...
65 KB (4,099 words) - 19:37, 16 June 2025
calculator, and timer/stopwatch Voice recorder, saving in the Adaptive Multi-Rate audio codec (.amr) format. Flashlight utilising the camera's flash. MusicDJ...
5 KB (450 words) - 13:21, 28 November 2024
8 mm video format (redirect from PCM Multi Audio)
selected with the "PCM Multi Audio" selector button. Introduced in 1999, Digital8 is a form of the industry standard DV codec, recorded on Hi8 media....
25 KB (2,956 words) - 05:50, 29 April 2025
Portable media player (redirect from Digital audio player)
based memory buffer, and then streamed through an audio codec to produce decoded PCM audio. Typically audio formats decode at double to more than 20 times...
77 KB (8,564 words) - 21:21, 13 June 2025
products (like TVs,) excluding content providers and operators. The AVS3 codec was added to DVB's media delivery toolbox. The AVS workgroup was founded...
21 KB (2,871 words) - 00:23, 4 March 2025
HDMI (redirect from Audio Return Channel)
compressed audio codec that a given HDMI device cannot transport, the source device may be able to decode the audio codec and transmit the audio as uncompressed...
175 KB (16,685 words) - 13:46, 16 June 2025
Advanced Video Coding (redirect from Psp codec)
and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport Stream" (PDF). Retrieved May 17, 2010. "Decoding the HTML 5 video codec debate"...
89 KB (9,795 words) - 06:14, 8 June 2025
Dolby Digital (redirect from Dolby audio coders)
Digital codec. The basis of the Dolby AC-3 multi-channel audio coding standard is the modified discrete cosine transform (MDCT), a lossy audio compression...
36 KB (3,838 words) - 11:00, 4 June 2025
MPEG-1 (category Audio codecs)
rates of 1.5 Mbit/s. This specific bitrate was chosen for transmission over T-1/E-1 lines and as the approximate data rate of audio CDs. The codecs that...
90 KB (10,881 words) - 21:28, 23 March 2025