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US8433430B2 - Cellular wireless telephone and audio …
https://patents.google.com/patent/US8433430B2/en
The present invention provides an audio codec for converting digital audio signals to analogue audio signals, the audio codec comprising: two digital audio bus …
What audio codecs do cell phones use? - Quora
https://www.quora.com/What-audio-codecs-do-cell-phones-use
In terms of the GSM family, the narrowband codec of choice is called AMR (Adaptive Multi-Rate) using around 12–14 kbps, whilst for LTE and parts of 3G, there is AMR-WB (Wideband AMR). AMR-WB (G722) was specifically developed to have rate options of having voice quality beyond normal landline - 50Hz - 7kHz range rather than landline 300Hz - 2.4kHz.
Audio Codecs - Stenograph
https://solutioncenter.helpjuice.com/en_US/audio/audiocodecs
If you would like a good balance of audio quality file size when using the Internet, Stenograph recommends the PCM 8000 Hz at 58 MB/hr codec instead of the PCM 11025 Hz at 80 MB/Hr. The difference between the quality levels at the 58 MB/hr and 80 MB/hr rates are insignificant on most hardware, and a 58 MB/hr file will transfer more quickly than an 80 MB/hr …
Web audio codec guide - Web media technologies | MDN
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Audio_codecs
The Adaptive Multi-Rate audio codec is optimized for encoding human speech efficiently. It was standardized in 1999 as part of the 3GPP audio standard used for both GSM and UMTS cellular telephony, and uses a multi-rate narrowband algorithm to encode audio frequencies at a telephony-grade quality level at around 7.4 kbps.
Voice Codecs - GL
https://www.gl.com/voice-codecs.html
EVS codec includes a multi-rate audio codec, a source controlled variable bit-rate (SC-VBR) scheme, a VAD, a comfort noise generation (CNG) system, and an error concealment (EC) mechanism to offset the effects of transmission errors resulting in lost packets. Its channel-aware mode feature further improves frame/packet error resilience. OPUS
TS 126 401 - V14.0.0 - Digital cellular …
https://www.etsi.org/deliver/etsi_ts/126400_126499/126401/14.00.00_60/ts_126401v140000p.pdf
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; General audio codec audio processing functions; Enhanced aacPlus general audio codec; General description (3GPP TS 26.401 version 14.0.0 Release 14) TECHNICAL SPECIFICATION
Guide to VoIP Codecs. A Detailed Comparison | nurango …
https://www.nurango.ca/blog/voip-codecs-guide
G.711/u is the North American standard and is the most widely used codec, default and standard in any IP device. G.711/a is the European equivalent of the G.711-u and is their standard codec. Also available in any IP device. G.729 is a compressed codec using about 1/3 the bandwidth of a standard G.711 codec. Useful when on a mobile app or when connecting over a …
Codec - Wikipedia
https://en.wikipedia.org/wiki/Codec
Audio codecs for cell phones need to have very low latency between source encoding and playback. In contrast, audio codecs for recording or broadcast can use high-latency audio compression techniques to achieve higher fidelity at a lower bit-rate. There are thousands of audio and video codecs, ranging in cost from free to hundreds of dollars or more.
PC Audio Codecs > High Definition Audio Codecs …
https://www.realtek.com/en/component/zoo/category/pc-audio-codecs-high-definition-audio-codecs-software
2014/05/14. 30 MB. ATI HDMI Audio Device. R2.70. 2012/06/22. 22 MB. 3D SoundBack Beta 0.1 (Realtek 3D SoundBack restores audio effects, including surround sound, reverberation, and spatial effects, for legacy game titles when running on Windows Vista.) Beta 0.1. 2008/07/15.
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