Enhanced Variable Rate CODEC (EVRC) is a speech codec used in CDMA networks. It was developed in 1995 to replace the QCELP vocoder which used more bandwidth...

Enhanced Variable Rate Codec B (EVRC-B) is a speech codec used by CDMA networks. EVRC-B is an enhancement to EVRC and compresses each 20 milliseconds...

2 (3GPP2) Enhanced Variable Rate Codec (EVRC, a.k.a. IS-127) – based on RCELP FFmpeg (decoder only) Enhanced Variable Rate Codec B (EVRC-B) QCELP (Qualcomm...

at variable bit rates ranging from 4.75 to 12.2 kbit/s with toll quality speech starting at 7.4 kbit/s. AMR was adopted as the standard speech codec by...

computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed in...

description of the Cinepak codec Archived 2007-02-05 at the Wayback Machine Frame rate, resolution, etc. are coded as variable length data. "Theora format...

encoding non-speech sounds like DTMF tones. Variable bit-rate (VBR) allows a codec to change its bit rate dynamically to adapt to the "difficulty" of...

capacity. The suite includes two codecs: EVRC-B and EVRC-WB. EVRC-B, or Enhanced Variable Rate Codec B, is a speech codec that provides high-quality voice...

voiceageevs.com. Enhanced Voice Services Codec for LTE VoiceAge – EVS The 3GPP Enhanced Voice Services (EVS) codec Fraunhofer Technical Paper – Enhanced Voice Services...

widely used as the voice codec in WhatsApp, which has over 1.5 billion users worldwide. WhatsApp uses Opus at 8–16 kHz sampling rates, with the Real-time Transport...

Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs, Proposed Standard. RFC 5188 – RTP Payload Format for the Enhanced Variable Rate Wideband...

the three audio codecs of the MPEG-1 standard (along with MP2 and MP1), it was retained and further extended—defining additional bit rates and support for...

motion compensation and variable block-size motion compensation, and the spec was later extended to add various additional enhanced features in 1998 and...

suite offers EVRC-B and EVRC-WB. Enhanced Variable Rate Codec B (EVRC-B) is a speech codec used by CDMA networks. EVRC-B is an enhancement to EVRC and compresses...

delivery protocols that encode audio and video with audio codecs and video codecs. Various codecs exist that optimize the media stream based on application...

26.401 V6.0.0 (2004-09), General Audio Codec audio processing functions; Enhanced aacPlus General Audio Codec; General Description (Release 6)" (DOC)...

264/AVC codec that does not support SVC. For temporal bitstream scalability (i.e., the presence of a sub-bitstream with a smaller temporal sampling rate than...

over a dial-up modem. This codec also supports professional-quality downloadable video with two-pass and variable bit rate (VBR) encoding." A number of...

stands for audio processing technology) is a family of proprietary audio codec compression algorithms owned by Qualcomm, with a heavy emphasis on wireless...

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 while this...

wideband speech and audio. Introduced in 2006, it defines variable bit-rate wideband enhancement using up to 12 hierarchical layers. The core layer is an...

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:...

identical to the HE-AAC v2 codec except for the addition of Dolby metadata, which is common for Dolby's other digital audio codecs. This metadata "ensures...

depth, transparency, etc.), variable and fractional frame rates from 0 to 120 Hz, scalable video coding for temporal (frame rate), spatial (resolution), SNR...

signal. GSM was further enhanced in 1997 with the enhanced full rate (EFR) codec, a 12.2 kbit/s codec that uses a full-rate channel. Finally, with the...

This work was developed into the channel vocoder which was used as a voice codec for telecommunications for speech coding to conserve bandwidth in transmission...

developed the first variable-rate LPC algorithm. The same year, Atal and Manfred R. Schroeder at Bell Labs proposed an LPC speech codec called adaptive predictive...

(AC-3), and has a number of improvements over that codec, including support for a wider range of data rates (32 kbit/s to 6144 kbit/s), an increased channel...

browser vendors. The AV1 bitstream specification includes a reference video codec. In 2018, Facebook conducted testing that approximated real-world conditions...

layer" (PDF). Digital Enhanced Cordless Telecommunications (DECT) "ETSI TS 103 634 V1.5.1 (2024-06). Low Complexity Communication Codec plus (LC3plus)" (PDF)...