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53 relations: AAC-LD, Adaptive Multi-Rate Wideband, Android Gingerbread, Apple, Audio bit depth, Audio frequency, AudioCodes, Avaya, Broadcom Inc., Cisco Systems, Codec, DSP Group, Extended Adaptive Multi-Rate – Wideband, Frequency, G.718, G.722, G.722.1, G.729.1, Gigaset Communications, Global Mobile Suppliers Association, Google, Grandstream Networks, HTC, Human voice, Infineon Technologies, Integrated Services Digital Network, International Telecommunication Union, Internet Speech Audio Codec, IPhone 5, ITU-T, List of smartphones with HD Voice support, Narrowband, NEC Unified Solutions, Nokia, Ooma, Opus (audio format), Polycom, Public switched telephone network, Remote broadcast, RTAudio, Samsung, SILK, Skype, Snom, Sony, Speex, Texas Instruments, Time-division multiplexing, Variable-Rate Multimode Wideband, Videotelephony, ..., Voice frequency, Voice over IP, 3GPP. Expand index (3 more) »
AAC-LD
The MPEG-4 Low Delay Audio Coder (a.k.a. AAC Low Delay, or AAC-LD) is audio compression standard designed to combine the advantages of perceptual audio coding with the low delay necessary for two-way communication.
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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).
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Android Gingerbread
Android "Gingerbread" is the 7th system of Android and a codename of the Android mobile operating system developed by Google and released in December 2010, for versions that are no longer supported.
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Apple
An apple is a sweet, edible fruit produced by an apple tree (Malus pumila).
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Audio bit depth
In digital audio using pulse-code modulation (PCM), bit depth is the number of bits of information in each sample, and it directly corresponds to the resolution of each sample.
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Audio frequency
An audio frequency (abbreviation: AF) or audible frequency is characterized as a periodic vibration whose frequency is audible to the average human.
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AudioCodes
AudioCodes Ltd. designs, develops and sells advanced Voice-over-IP (VoIP) and converged VoIP and Data networking products and applications to service providers and enterprises.
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Avaya
Avaya is an American multinational technology company headquartered in Santa Clara, California that specializes in business communications, specifically unified communications (UC), contact center (CC), and services.
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Broadcom Inc.
Broadcom Inc. (formerly Avago Technologies) is a designer, developer and global supplier of products based on analog and digital semiconductor technologies within four primary markets: wired infrastructure, wireless communications, enterprise storage, and industrial & others.
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Cisco Systems
Cisco Systems, Inc. is an American multinational technology conglomerate headquartered in San Jose, California, in the center of Silicon Valley, that develops, manufactures and sells networking hardware, telecommunications equipment and other high-technology services and products.
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Codec
A codec is a device or computer program for encoding or decoding a digital data stream or signal.
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DSP Group
DSP Group, Inc. is a provider of chipsets for VoIP, multimedia, and digital cordless applications.
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Extended Adaptive Multi-Rate – Wideband
Extended Adaptive Multi-Rate – Wideband (AMR-WB+) is an audio codec that extends AMR-WB.
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Frequency
Frequency is the number of occurrences of a repeating event per unit of time.
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G.718
G.718 is an ITU-T recommendation embedded scalable speech and audio codec providing high quality narrowband (250 Hz to 3.5 kHz) speech over the lower bit rates and high quality wideband (50 Hz to 7 kHz) speech over the complete range of bit rates.
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G.722
G.722 is an ITU-T standard 7 kHz Wideband audio codec operating at 48, 56 and 64 kbit/s.
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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.
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G.729.1
G.729.1 is an 8-32 kbit/s embedded speech and audio codec providing bitstream interoperability with G.729, G.729 Annex A and G.729 Annex B. Its official name is G.729-based embedded variable bit rate codec: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729.
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Gigaset Communications
Gigaset AG, formerly known as Siemens Home and Office Communication Devices is a multinational corporation based in Munich, Germany.
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Global Mobile Suppliers Association
The Global mobile Suppliers Association (GSA) is an organization that aims to promote the GSM, 3G, WCDMA, HSPA and LTE mobile phone standards worldwide.
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Google LLC is an American multinational technology company that specializes in Internet-related services and products, which include online advertising technologies, search engine, cloud computing, software, and hardware.
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Grandstream Networks
Founded in 2002, Grandstream Networks is a manufacturer of IP voice and video communications equipment, video surveillance, gateways and analog telephone adapters (ATAs), and Asterisk-based IP-PBX appliances.
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HTC
HTC Corporation (High Tech Computer Corporation) is a Taiwanese consumer electronics company headquartered in Xindian District, New Taipei City, Taiwan.
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Human voice
The human voice consists of sound made by a human being using the vocal tract, such as talking, singing, laughing, crying, screaming, etc.
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Infineon Technologies
Infineon Technologies AG is a German semiconductor manufacturer founded on 1 April 1999, when the semiconductor operations of the parent company Siemens AG were spun off to form a separate legal entity.
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Integrated Services Digital Network
Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.
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International Telecommunication Union
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
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Internet Speech Audio Codec
internet Speech Audio Codec (iSAC) is a wideband speech codec, developed by Global IP Solutions (GIPS) (acquired by Google Inc in 2011).
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IPhone 5
The iPhone 5 is a smartphone designed and marketed by Apple Inc. It is the sixth generation of the iPhone, succeeding the iPhone 4S and preceding the iPhone 5S and iPhone 5C.
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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.
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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.
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Narrowband
In radio, narrowband describes a channel in which the bandwidth of the message does not significantly exceed the channel's coherence bandwidth.
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NEC Unified Solutions
NEC Enterprise Solutions (formerly NEC Philips Unified Solutions) is a wholly owned subsidiary of NEC and specializes in providing IT & Communications solutions to small, medium and large enterprises, in both private and public sectors in the EMEA region (Europe, Middle East and Africa).
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Nokia
Nokia is a Finnish multinational telecommunications, information technology, and consumer electronics company, founded in 1865.
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Ooma
Ooma, Inc., or Ooma, is an American publicly traded consumer telecommunications company based in the Silicon Valley, California area.
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Opus (audio format)
Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors.
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Polycom
Polycom is an American multinational corporation that develops video, voice and content collaboration and communication technology.
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Public switched telephone network
The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.
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Remote broadcast
In broadcast engineering, a remote broadcast (usually just called a remote or a live remote, or in news parlance, a live shot) is broadcasting done from a location away from a formal television studio and is considered an electronic field production (EFP).
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RTAudio
RTAudio is a Microsoft produced adaptive wide-band speech codec.
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Samsung
Samsung is a South Korean multinational conglomerate headquartered in Samsung Town, Seoul.
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SILK
SILK is an audio compression format and audio codec developed by Skype Limited.
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Skype
Skype is a telecommunications application software product that specializes in providing video chat and voice calls between computers, tablets, mobile devices, the Xbox One console, and smartwatches via the Internet and to regular telephones.
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Snom
Snom Technology GmbH is a German company which manufactures Voice over Internet Protocol (VoIP) telephones, based on the IETF standard Session Initiation Protocol (SIP).
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Sony
is a Japanese multinational conglomerate corporation headquartered in Kōnan, Minato, Tokyo.
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Speex
Speex is an audio compression format specifically tuned for the reproduction of human speech and also a free software speech codec that may be used on VoIP applications and podcasts.
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Texas Instruments
Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally.
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Time-division multiplexing
Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern.
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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.
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Videotelephony
Videotelephony comprises the technologies for the reception and transmission of audio-video signals by users at different locations, for communication between people in real-time.
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Voice frequency
A voice frequency (VF) or voice band is one of the frequencies, within part of the audio range, that is being used for the transmission of speech.
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Voice over IP
Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.
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3GPP
The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunications standards associations, known as the Organizational Partners.
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Redirects here:
HD VoIP, HD Voice, HD voice, HD-Voice, HD-voice, HDVoIP, HDVoice, HDvoice, Hdvoice, High-definition voice call, Wideband Audio, Wideband Voice, Wideband voice.
References
[1] https://en.wikipedia.org/wiki/Wideband_audio
