Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Adaptive Multi-Rate audio codec

+ Save concept

The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. [1]

56 relations: Adaptive Multi-Rate Wideband, Algebraic code-excited linear prediction, Android (operating system), Audacity (audio editor), Audio coding format, Audio file format, BlackBerry, BlackBerry 10, Codec, Comfort noise, Comparison of audio coding formats, Data compression, Digital container format, Discontinuous transmission, Enhanced full rate, Ericsson, Extended Adaptive Multi-Rate – Wideband, Ffdshow, FFmpeg, Filename extension, Foobar2000, Forward error correction, Free software, Full Rate, G.711, G.729, GSM, Half Rate, IOS, IPhone, IS-641, K-Lite Codec Pack, Line spectral pairs, Linear predictive coding, Link adaptation, MacOS, Mean opinion score, MPlayer, Narrowband, Nippon Telegraph and Telephone, Nokia, Patent, Patent pool, PDC-EFR, PSQM, QuickTime, RealPlayer, RTP audio video profile, Sampling (signal processing), SMPlayer, ..., Speech coding, UMTS, VLC media player, Voice activity detection, 3GP and 3G2, 3GPP. Expand index (6 more) »

Adaptive Multi-Rate Wideband

Adaptive Multi-Rate Wideband (AMR-WB) is a patented wideband speech audio coding standard developed based on Adaptive Multi-Rate encoding, using similar methodology as algebraic code excited linear prediction (ACELP).

New!!: Adaptive Multi-Rate audio codec and Adaptive Multi-Rate Wideband · See more »

Algebraic code-excited linear prediction

Algebraic code-excited linear prediction (ACELP) is a patented speech coding algorithm by VoiceAge Corporation in which a limited set of pulses is distributed as excitation to a linear prediction filter.

New!!: Adaptive Multi-Rate audio codec and Algebraic code-excited linear prediction · See more »

Android (operating system)

Android is a mobile operating system developed by Google, based on a modified version of the Linux kernel and other open source software and designed primarily for touchscreen mobile devices such as smartphones and tablets.

New!!: Adaptive Multi-Rate audio codec and Android (operating system) · See more »

Audacity (audio editor)

Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS/OS X and Unix-like operating systems.

New!!: Adaptive Multi-Rate audio codec and Audacity (audio editor) · See more »

Audio coding format

An audio coding format (or sometimes audio compression format) is a content representation format for storage or transmission of digital audio (such as in digital television, digital radio and in audio and video files).

New!!: Adaptive Multi-Rate audio codec and Audio coding format · See more »

Audio file format

An audio file format is a file format for storing digital audio data on a computer system.

New!!: Adaptive Multi-Rate audio codec and Audio file format · See more »

BlackBerry

BlackBerry is a line of smartphones, tablets, and services originally designed and marketed by Canadian company BlackBerry Limited (formerly known as Research In Motion, or RIM).

New!!: Adaptive Multi-Rate audio codec and BlackBerry · See more »

BlackBerry 10

BlackBerry 10 is a proprietary mobile operating system for the BlackBerry line of smartphones, both developed by BlackBerry Limited (formerly Research In Motion).

New!!: Adaptive Multi-Rate audio codec and BlackBerry 10 · See more »

Codec

A codec is a device or computer program for encoding or decoding a digital data stream or signal.

New!!: Adaptive Multi-Rate audio codec and Codec · See more »

Comfort noise

Comfort noise (or comfort tone) is synthetic background noise used in radio and wireless communications to fill the artificial silence in a transmission resulting from voice activity detection or from the audio clarity of modern digital lines.

New!!: Adaptive Multi-Rate audio codec and Comfort noise · See more »

Comparison of audio coding formats

The following tables compare general and technical information for a variety of audio coding formats.

New!!: Adaptive Multi-Rate audio codec and Comparison of audio coding formats · See more »

Data compression

In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.

New!!: Adaptive Multi-Rate audio codec and Data compression · See more »

Digital container format

A container or wrapper format is a metafile format whose specification describes how different elements of data and metadata coexist in a computer file.

New!!: Adaptive Multi-Rate audio codec and Digital container format · See more »

Discontinuous transmission

Discontinuous transmission (DTX) is a means by which a mobile telephone is temporarily shut off or muted while the phone lacks a voice input.

New!!: Adaptive Multi-Rate audio codec and Discontinuous transmission · See more »

Enhanced full rate

Enhanced Full Rate or EFR or GSM-EFR or GSM 06.60 is a speech coding standard that was developed in order to improve the quite poor quality of GSM-Full Rate (FR) codec.

New!!: Adaptive Multi-Rate audio codec and Enhanced full rate · See more »

Ericsson

Ericsson (Telefonaktiebolaget L. M. Ericsson) is a Swedish multinational networking and telecommunications company headquartered in Stockholm.

New!!: Adaptive Multi-Rate audio codec and Ericsson · See more »

Extended Adaptive Multi-Rate – Wideband

Extended Adaptive Multi-Rate – Wideband (AMR-WB+) is an audio codec that extends AMR-WB.

New!!: Adaptive Multi-Rate audio codec and Extended Adaptive Multi-Rate – Wideband · See more »

Ffdshow

ffdshow is a codec mainly used for decoding of video in the MPEG-4 ASP (e.g. encoded with DivX or Xvid) and H.264/MPEG-4 AVC video formats, but it supports numerous other video and audio formats as well.

New!!: Adaptive Multi-Rate audio codec and Ffdshow · See more »

FFmpeg

FFmpeg is a free software project, the product of which is a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams.

New!!: Adaptive Multi-Rate audio codec and FFmpeg · See more »

Filename extension

A filename extension is an identifier specified as a suffix to the name of a computer file.

New!!: Adaptive Multi-Rate audio codec and Filename extension · See more »

Foobar2000

foobar2000 is a freeware audio player for Microsoft Windows, iOS and Android developed by Peter Pawłowski.

New!!: Adaptive Multi-Rate audio codec and Foobar2000 · See more »

Forward error correction

In telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels.

New!!: Adaptive Multi-Rate audio codec and Forward error correction · See more »

Free software

Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions.

New!!: Adaptive Multi-Rate audio codec and Free software · See more »

Full Rate

Full Rate (FR or GSM-FR or GSM 06.10 or sometimes simply GSM) was the first digital speech coding standard used in the GSM digital mobile phone system.

New!!: Adaptive Multi-Rate audio codec and Full Rate · See more »

G.711

G.711 is an ITU-T standard for audio companding.

New!!: Adaptive Multi-Rate audio codec and G.711 · See more »

G.729

G.729 is a royalty-free narrow-band vocoder-based audio data compression algorithm using a frame length of 10 milliseconds.

New!!: Adaptive Multi-Rate audio codec and G.729 · See more »

GSM

GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991.

New!!: Adaptive Multi-Rate audio codec and GSM · See more »

Half Rate

Half Rate (HR or GSM-HR or GSM 06.20) is a speech coding system for GSM, developed in the early 1990s.

New!!: Adaptive Multi-Rate audio codec and Half Rate · See more »

IOS

iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware.

New!!: Adaptive Multi-Rate audio codec and IOS · See more »

IPhone

iPhone is a line of smartphones designed and marketed by Apple Inc. The iPhone line of products use Apple's iOS mobile operating system software.

New!!: Adaptive Multi-Rate audio codec and IPhone · See more »

IS-641

TIA/EIA standard IS-641 is a speech coding standard used in some computer and telecommunications networks in the U.S.A. Main usage was in the U.S. TDMA networks defined by IS-136.

New!!: Adaptive Multi-Rate audio codec and IS-641 · See more »

K-Lite Codec Pack

The K-Lite Codec Pack is a collection of audio and video codecs for Microsoft Windows that enables an operating system and its software to play various audio and video formats generally not supported by the operating system itself.

New!!: Adaptive Multi-Rate audio codec and K-Lite Codec Pack · See more »

Line spectral pairs

Line spectral pairs (LSP) or line spectral frequencies (LSF) are used to represent linear prediction coefficients (LPC) for transmission over a channel.

New!!: Adaptive Multi-Rate audio codec and Line spectral pairs · See more »

Linear predictive coding

Linear predictive coding (LPC) is a tool used mostly in audio signal processing and speech processing for representing the spectral envelope of a digital signal of speech in compressed form, using the information of a linear predictive model.

New!!: Adaptive Multi-Rate audio codec and Linear predictive coding · See more »

Link adaptation

Link adaptation, or adaptive coding and modulation (ACM), is a term used in wireless communications to denote the matching of the modulation, coding and other signal and protocol parameters to the conditions on the radio link (e.g. the pathloss, the interference due to signals coming from other transmitters, the sensitivity of the receiver, the available transmitter power margin, etc.). For example, WiMAX uses a rate adaptation algorithm that adapts the modulation and coding scheme (MCS) according to the quality of the radio channel, and thus the bit rate and robustness of data transmission.

New!!: Adaptive Multi-Rate audio codec and Link adaptation · See more »

MacOS

macOS (previously and later) is a series of graphical operating systems developed and marketed by Apple Inc. since 2001.

New!!: Adaptive Multi-Rate audio codec and MacOS · See more »

Mean opinion score

Mean opinion score (MOS) is a measure used in the domain of Quality of Experience and telecommunications engineering, representing overall quality of a stimulus or system.

New!!: Adaptive Multi-Rate audio codec and Mean opinion score · See more »

MPlayer

MPlayer is a free and open media player software.

New!!: Adaptive Multi-Rate audio codec and MPlayer · See more »

Narrowband

In radio, narrowband describes a channel in which the bandwidth of the message does not significantly exceed the channel's coherence bandwidth.

New!!: Adaptive Multi-Rate audio codec and Narrowband · See more »

Nippon Telegraph and Telephone

, commonly known as NTT, is a Japanese telecommunications company headquartered in Tokyo, Japan.

New!!: Adaptive Multi-Rate audio codec and Nippon Telegraph and Telephone · See more »

Nokia

Nokia is a Finnish multinational telecommunications, information technology, and consumer electronics company, founded in 1865.

New!!: Adaptive Multi-Rate audio codec and Nokia · See more »

Patent

A patent is a set of exclusive rights granted by a sovereign state or intergovernmental organization to an inventor or assignee for a limited period of time in exchange for detailed public disclosure of an invention.

New!!: Adaptive Multi-Rate audio codec and Patent · See more »

Patent pool

In patent law, a patent pool is a consortium of at least two companies agreeing to cross-license patents relating to a particular technology.

New!!: Adaptive Multi-Rate audio codec and Patent pool · See more »

PDC-EFR

PDC Enhanced Full Rate is a speech coding standard that was developed by ARIB in Japan and used in PDC mobile networks in Japan.

New!!: Adaptive Multi-Rate audio codec and PDC-EFR · See more »

PSQM

PSQM (Perceptual Speech Quality Measure) is a computational and modeling algorithm defined in ITU Recommendation ITU-T P.861 that objectively evaluates and quantifies voice quality of voice-band (300 – 3400 Hz) speech codecs.

New!!: Adaptive Multi-Rate audio codec and PSQM · See more »

QuickTime

QuickTime is an extensible multimedia framework developed by Apple Inc., capable of handling various formats of digital video, picture, sound, panoramic images, and interactivity.

New!!: Adaptive Multi-Rate audio codec and QuickTime · See more »

RealPlayer

RealPlayer, formerly RealAudio Player, RealOne Player and RealPlayer G2, is a cross-platform media player app, developed by RealNetworks.

New!!: Adaptive Multi-Rate audio codec and RealPlayer · See more »

RTP audio video profile

The RTP audio/video profile (RTP/AVP) is a profile for Real-time Transport Protocol (RTP) that specifies the technical parameters of audio and video streams.

New!!: Adaptive Multi-Rate audio codec and RTP audio video profile · See more »

Sampling (signal processing)

In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal.

New!!: Adaptive Multi-Rate audio codec and Sampling (signal processing) · See more »

SMPlayer

SMPlayer is a cross-platform graphical front-end for MPlayer and forks of Mplayer using GUI widgets offered by Qt.

New!!: Adaptive Multi-Rate audio codec and SMPlayer · See more »

Speech coding

Speech coding is an application of data compression of digital audio signals containing speech.

New!!: Adaptive Multi-Rate audio codec and Speech coding · See more »

UMTS

The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard.

New!!: Adaptive Multi-Rate audio codec and UMTS · See more »

VLC media player

VLC media player (commonly known as VLC) is a free and open-source, portable, cross-platform media player and streaming media server developed by the VideoLAN project.

New!!: Adaptive Multi-Rate audio codec and VLC media player · See more »

Voice activity detection

Voice activity detection (VAD), also known as speech activity detection or speech detection, is a technique used in speech processing in which the presence or absence of human speech is detected.

New!!: Adaptive Multi-Rate audio codec and Voice activity detection · See more »

3GP and 3G2

3GP (3GPP file format) is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services.

New!!: Adaptive Multi-Rate audio codec and 3GP and 3G2 · See more »

3GPP

The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunications standards associations, known as the Organizational Partners.

New!!: Adaptive Multi-Rate audio codec and 3GPP · See more »

Redirects here:

.amr, 3ga, AMR-NB, Adaptive Mult-Rate, Adaptive Multi-Rate, Adaptive Multi-Rate Audio, Adaptive multi rate file, Adaptive multi-rate compression, GSM-AMR.

References

[1] https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec

OutgoingIncoming
Hey! We are on Facebook now! »