SPIRIT Introduces IP-Multi Rate Next Generation VoIP Codec

12/8/2004 - SPIRIT (www.spiritdsp.com/voip) offers next generation VoIP codec targeted for IP networks. High speech quality is a must in modern VoIP systems. Standard ITU codecs like G.729 and G.723 are becoming obsolete speaking about IP communication. Few offers are coming in but they don’t really offer significant improvements comparing to existing ITU standards.

The good news is SPIRIT new dedicated next generation VoIP codec – SPIRIT IP-Multi Rate. Unlike any alternative IP codecs on the market it delivers really high-quality voice at any rate in the range from 4 to 80kbps. The codec works in both Narrow Band and Wide Band mode and is highly adaptive to network conditions thanks to automatic rate selection. Moreover the codec is transcoding-free in multiparty conferences that saves server resources and ensures high quality.

Thanks to scalable coding, all sent packets are ranged according to the contained information importance and transmitted to the client side independently. High-priority packets are transmitted first of all, so that information-of-interest is always delivered without artifacts. Lower priority packets are also delivered if the connection quality is good enough.

IP-MR is designed to overcome the adverse network conditions of packet loss up to 30% and more and variable network errors and delays. IP-MR ensures that the bandwidth consumed is no more than the amount of useful information in the speech, thus ensuring optimal traffic and channel usage during the whole conversation.

“SPIRIT IP-MR is optimal for both peer-to-peer and multipoint conferencing, being adapted for most efficient tandem-free IP conferencing,” – said Andrew Sviridenko, founding CEO of SPIRIT. “User is able to speak in full duplex mode and to hear high quality speech even in terms of low connection quality of his remote colleague.”

SPIRIT (www.spiritDSP.com) is a prominent supplier of high-quality software products for audio and telecom industries. SPIRIT's flexible licensing model includes cost efficient product customization to specific clients' needs. SPIRIT communication software works within hardware solutions from clients including Agere, Atmel, Furuno, JRC, NEC, Nortel Networks, Panasonic, Philips, Samsung, Siemens, Tadiran, Texas Instruments, and Toshiba among 100+ other OEMs. Texas Instruments is shipping SPIRIT's software ROM-ed into TI C54CST processor.

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