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Get Inexpensive EVS Codec Solutions For Smooth Interoperability
Posted: Sep 11, 2015
A codec is a device or computer program which helps in the decoding or encoding a digital data stream or signal. It is an amalgam or portmanteau of the compressor-decompressor or coder-decoder. The codec also helps in the streaming of video-conferencing, media and video editing apps. Today there are many types of codecs available in the market to choose from. However, some of the standard codecs are highly acclaimed and well known for ensuring interoperability. The standard codecs are the embodiment of best practices created through the consensus and review of experts, therefore they’re proven and match the parameters fixed by industry.
Some of the most important standard codecs are: G.711 & annexes, OPUS, G.722, G.722.1, Microsoft® GSM, G.722.2 (AMR-WB), QCELP-13 (IS-733), G.723.1, EVRC family, G.726, G.728, G.729 & annexes, G.729.1(a discontinuous transmission (DTX) functionality that helps in interrupting the transmission during silence for VoIP communication), AMR, AMR-WB (G.722.2), AMR-WB+, EVS and many more. While they all assure quality and ensure interoperability, Enhanced Voice Services (EVS) is one such 3GPP conversational codec which offers up to 20kHz audio bandwidth. It has the ability to deliver speech quality that meet other audio inputs like stored music, at the same time delivering high robustness to packet losses and delay jitter.
Specifically created to cater to the requirements of packet-switched mobile communication networks, the EVS codec is created and standardized under the lead of the 3GPP codec workinggroup, 3GPP TSG SA WG4. The EVS coder is consisted with a multi-rate (5.9 to 128 kbps) audio coder, developed to operate with voice and mixed/music content signals, a source regulated rate scheme comprising a sound/voice activity detector and a comfort noise generation system, and an error concealment mechanism, which can handle the effects of lost packets and transmission errors. The EVS coder also helps providejitter buffer management. Besides, the coder is also capable of providing augmented interoperability with AMR-WB over all nine source bitrates from 6.6 to 23.85 kbps. The EVS speech coder is also known to have the ability to switch its bitrate every speech frame upon command. The EVS coder has, in fact, brought about a breakthrough in cellular voice communication. It creates a new area of possibilities in voice and audio applications, and provides an amazing acoustic user experience on LTE and LET-advanced networks.
Codec for EVS or EVS codec helps keep up excellence in low bit rate, high-quality audio and speech codec implementations for the existing and coming IP, mobile and wirelinenetworks;systems,communication devices; toys and consumer electronics.
There are many companies, having a team of specialists who have several years of experience in developing highly efficient, small-footprint and audio codec implementations; algorithmic and performance optimizations for DSP and ARM; plus affordable Evs codec solutions for an extensive variety of platforms and processors. Thesecodecs specialists are knowledgeable enough about the standards, speech compression and coding, as well as architectures and platforms, and leave no stone unturned when it comes to offering quality products. However, it will be wise if you pre-inform yourself with the feedbacks and reviews of their previous and existing clients as well as customers so that you can get exactly what you are looking for.
Resource box: If you are looking for G729B codec implementation and solutions, the author of this article recommends CodecPro.
If you want to know about G729 codec specification, the author of this article recommends CodecPro.