Get Effevtive Solutions For EVS Codecs With Smooth Interoperability

Otherwise known as a computer program or a device, a codec to encode and decode a digital data stream or signal. It’s a combination of coder-decoder or compressor-decompressor. It also abets to stream video-conferencing, video and media editing applications. The primary function of a codec is to make use of the ability of human brain to create an impression from insufficient information. Nowadays, a large number of codecs are available to choose from in the market. However, just a few of them are the standard codecs, which are highly-praised to ensure interoperability. The standard codecs represent the best practices, developed on the basis of experts’ review and consensus, thus matching the standard set by industry. The few essential standard codecs include: G.723.1, G.711 & annexes, OPUS, G.722, G.722.1, G.722.2 (AMR-WB), Microsoft® GSM, QCELP-13 (IS-733), EVRC family, G.726, G.728, G.729 & annexes, G.729.1, AMR-WB (G.722.2), AMR, AMR-WB+, EVS and many more. Though all these codecs guarantee, and make sure of interoperability, yet EVS, (Enhanced Voice Services), a 3GPP conversational codec, provides up to 20 kHz audio bandwidth. It can render speech quality that match other audio inputs such as stored music, and deliver immense robustness to delay jitter and packet losses.

The EVS codec, which is mainly developed to match the exigencies of packet-switched mobile communications networks, is generated and standardized under the lead of 3GPP codec functioning group, 3GPP TSG SA WG4. The EVS coder features a multi-rate (128 to 5.9 kbps) audio coder, created to function with voice as well as music and mixed content signals, a source-operated rate scheme including a voice/sound activity detector and a comfort noise generation system as well as an error concealment mechanism, which has the ability to tackle the effects of lost transmission and packets errors.

The EVS coder, apart from helping to render jitter buffer, can also render enhanced interoperability with AMR-WB over all nine source bit-rates from 6.6 to 23.85kbps. The EVS speech coder can also switch its bit-rate every speech frame on being commanded. The EVS coder, in all, has made revolutionary transformation in cellular voice communication. It has brought a new and innovative arena of probability in audio and voice applications, and renders an outstanding acoustic user experience on advanced and non-advanced LTE networks.

The EVS Codec continues to maintain supremacy in low bit-rate, high-quality speech, audio codec implementations for the available, forthcoming IP, mobile as well as wire-line networks; systems, communication devices; consumer electronics and toys.

One can find a number of companies that boast of a team of specialists with several years of experience in the deployment of highly-efficient, small-footprint as well as codec implementations; performance and algorithmic optimizations for ARM, DSP; including inexpensive EVS codec solutions for a wide range of processors and platforms. The codecs specialists employed with these organizations have adequate knowledge about the coding, standards and speech compression in addition to platforms and architectures. They make every possible effort to offer quality products. However, it is always better to know more about these companies.

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