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

Adaptive Multi-Rate Wideband

Index 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). [1]

44 relations: Adaptive Multi-Rate audio codec, Algebraic code-excited linear prediction, Android (operating system), Audio coding format, Call forwarding, Call transfer, CDMA2000, Comfort noise, Comparison of audio coding formats, Digital container format, Discontinuous transmission, Enhanced full rate, Extended Adaptive Multi-Rate – Wideband, FFmpeg, Filename extension, Full Rate, G.722, G.722.1, GSM, Half Rate, Handover, Instructions per second, IP Multimedia Subsystem, ISO base media file format, ITU-T, List of smartphones with HD Voice support, Media gateway, Multimedia Messaging Service, Narrowband, Network switching subsystem, Nokia, Nokia Networks, Patent, Plain old telephone service, RTP audio video profile, Speech coding, UMTS, Variable-Rate Multimode Wideband, VisualOn, Voice activity detection, Wideband audio, 3G, 3GP and 3G2, 3GPP.

Adaptive Multi-Rate audio codec

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

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

Call forwarding

Call forwarding, or call diversion, is a telephony feature of some telephone switching systems which redirects a telephone call to another destination, which may be, for example, a mobile or another telephone number where the desired called party is available.

New!!: Adaptive Multi-Rate Wideband and Call forwarding · See more »

Call transfer

A call transfer is a telecommunications mechanism that enables a user to relocate an existing telephone call to another phone or attendant console, using a transfer button or a switchhook flash and dialing the required location.

New!!: Adaptive Multi-Rate Wideband and Call transfer · See more »

CDMA2000

CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites.

New!!: Adaptive Multi-Rate Wideband and CDMA2000 · 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 Wideband 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 Wideband and Comparison of audio coding formats · 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 Wideband 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 Wideband 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 Wideband and Enhanced full rate · 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 Wideband and Extended Adaptive Multi-Rate – Wideband · 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 Wideband 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 Wideband and Filename extension · 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 Wideband and Full Rate · See more »

G.722

G.722 is an ITU-T standard 7 kHz Wideband audio codec operating at 48, 56 and 64 kbit/s.

New!!: Adaptive Multi-Rate Wideband and G.722 · See more »

G.722.1

G.722.1 is a licensed royalty-free ITU-T standard audio codec providing high quality, moderate bit rate (24 and 32 kbit/s) wideband (50 Hz – 7 kHz audio bandwidth, 16 ksps (kilo-samples per second) audio coding. It is a partial implementation of Siren 7 audio coding format (which offers bit rates 16, 24, 32 kbit/s) developed by PictureTel Corp. (now Polycom, Inc.). Its official name is Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss. G.722.1 Annex C (or G.722.1C) is a low-complexity extension mode to G.722.1, which doubles the algorithm to permit 14 kHz audio bandwidth using a 32 kHz audio sample rate, at 24, 32, and 48 kbit/s. It is included in the official ITU-T Recommendation G.722.1. The name of this annex is Annex C – 14 kHz mode at 24, 32, and 48 kbit/s. It is an implementation of the mono version of Polycom's Siren 14 audio coding format. G.722.1 is the successor to PT716plus developed by PictureTel Corp. (now Polycom, Inc.), which has been used in videoconferencing systems for many years. As ITU-T Recommendation G.722.1, it was approved on September 30, 1999 after a four-year selection process involving extensive testing. G.722.1/Annex C was approved by ITU-T on May 14, 2005. G.722.1 is a transform-based compressor that is optimized for both speech and music. The G.722.1 algorithm is based on lapped transform technology, using a Modulated Lapped Transform (MLT). The computational complexity is quite low (5.5 floating-point MIPS) for an efficient high-quality compressor, and the algorithmic delay end-to-end is 40 ms. The numbering of the wideband ITU audio codecs is sometimes confusing. There are three principal codecs, which are unrelated, but all carrying the G.722 label. G.722 is the original 7 kHz codec, using ADPCM and operating at 48–64 kbit/s. G.722.1, another 7 kHz codec, operates at half the data rate while delivering comparable or better quality than G.722, but is a transform-based codec. G.722.1 Annex C is very similar to G.722.1, but provides twice the audio bandwidth, 14 kHz. And G.722.2, which operates on wideband speech and delivers very low bitrates, is an ACELP-based algorithm.

New!!: Adaptive Multi-Rate Wideband and G.722.1 · 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 Wideband 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 Wideband and Half Rate · See more »

Handover

In cellular telecommunications, the terms handover or handoff refer to the process of transferring an ongoing call or data session from one channel connected to the core network to another channel.

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

Instructions per second

Instructions per second (IPS) is a measure of a computer's processor speed.

New!!: Adaptive Multi-Rate Wideband and Instructions per second · See more »

IP Multimedia Subsystem

The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering IP multimedia services.

New!!: Adaptive Multi-Rate Wideband and IP Multimedia Subsystem · See more »

ISO base media file format

ISO base media file format (ISO/IEC 14496-12 – MPEG-4 Part 12) defines a general structure for time-based multimedia files such as video and audio.

New!!: Adaptive Multi-Rate Wideband and ISO base media file format · See more »

ITU-T

The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications.

New!!: Adaptive Multi-Rate Wideband and ITU-T · See more »

List of smartphones with HD Voice support

This is a list of smartphone that support Wideband audio better known as Adaptive Multi-Rate Wideband (AMR-WB) or HD Voice.

New!!: Adaptive Multi-Rate Wideband and List of smartphones with HD Voice support · See more »

Media gateway

A media gateway is a translation device or service that converts media streams between disparate telecommunications technologies such as POTS, SS7, Next Generation Networks (2G, 2.5G and 3G radio access networks) or private branch exchange (PBX) systems.

New!!: Adaptive Multi-Rate Wideband and Media gateway · See more »

Multimedia Messaging Service

Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network.

New!!: Adaptive Multi-Rate Wideband and Multimedia Messaging Service · 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 Wideband and Narrowband · See more »

Network switching subsystem

Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call switching and mobility management functions for mobile phones roaming on the network of base stations.

New!!: Adaptive Multi-Rate Wideband and Network switching subsystem · See more »

Nokia

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

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

Nokia Networks

Nokia Networks (formerly Nokia Solutions and Networks (NSN) and Nokia Siemens Networks (NSN) is a multinational data networking and telecommunications equipment company headquartered in Espoo, Finland, and wholly owned subsidiary of Nokia Corporation. It started as a joint venture between Nokia of Finland and Siemens of Germany known as Nokia Siemens Networks. Nokia Networks has operations in around 120 countries. In 2013, Nokia acquired 100% of Nokia Networks, buying all of Siemens' shares. In April 2014, NSN name was phased out as part of rebranding process.

New!!: Adaptive Multi-Rate Wideband and Nokia Networks · 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 Wideband and Patent · See more »

Plain old telephone service

Plain old telephone service or plain ordinary telephone service (POTS) is a retronym for voice-grade telephone service employing analog signal transmission over copper loops.

New!!: Adaptive Multi-Rate Wideband and Plain old telephone service · 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 Wideband and RTP audio video profile · See more »

Speech coding

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

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

Variable-Rate Multimode Wideband

Variable-Rate Multimode Wideband (VMR-WB) is a source-controlled variable-rate multimode codec designed for robust encoding/decoding of wideband/narrowband speech.

New!!: Adaptive Multi-Rate Wideband and Variable-Rate Multimode Wideband · See more »

VisualOn

VisualOn is a Silicon Valley-based multimedia software company that provides high-definition audio and video entertainment to smartphones, tablets, laptops, connected TVs and other mobile and convergent devices.

New!!: Adaptive Multi-Rate Wideband and VisualOn · 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 Wideband and Voice activity detection · See more »

Wideband audio

Wideband audio, also known as wideband voice or HD voice, is high definition voice quality for telephony audio, contrasted with standard digital telephony "toll quality".

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

3G

3G, short for third generation, is the third generation of wireless mobile telecommunications technology.

New!!: Adaptive Multi-Rate Wideband and 3G · 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 Wideband 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 Wideband and 3GPP · See more »

Redirects here:

.awb, AMR-WB, G.722.2.

References

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

OutgoingIncoming
Hey! We are on Facebook now! »