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| DSP Innovations Inc. |
Digital Private Mobile Radio (like to ETSI TS 102.490) can be available to everyone if will provide high speech quality in any conditions, will have low cost and will operate a long time without battery charge.
SPR Robust 3600 bps vocoder from DSP Innovations Inc. is based on innovative Sinusoidal Pulsed Representation (SPR) model and provides:
– high speech quality (> 3.2 PESQ )
– high robustness to channel errors (> 3.0 PESQ in channel with BER = 3%)
– low computing complexity (< 30 MIPS for TI’s C55 DSP)
– low memory usage (< 15 kBytes of RAM and < 35 kBytes of ROM)
All these features allow the vocoder operate on very low cost processor chip (for example, on new Piccolo microcontroller (TMS320F2802x) from Texas Instruments), providing high quality, low power consumption and long life of battery, that is ideally suitable for digital Private Mobile Radio.
Moreover, SPR Robust 3600 bps Vocoder is patent-free and royalty-free as well as other proprietary vocoders from DSP Innovations, that becomes attractive for both radio manufacturers and chip makers.
About DSP Innovations Inc.:
DSP Innovations Inc. (DSPINI), a supplier of DSP-software and engineering services, was founded in 2007, having united the best Russian scientists, software engineers and hardware designers who have great experience in DSP and development of various telecommunication equipment. The mainstream of the company is speech technologies and voice communication: innovative methods of speech coding, speech enhancement (noise and echo cancelling, spectrum equalization, etc.), advanced methods of “source-channel coding”. Proprietary “royalty-free” and standard vocoders from DSPINI have superior characteristics, operate in range from 300 bps up to 64 kbps bit rates and are used in: secure voice, software defined radio, wireless, VoIP, voice storage, etc.
Having great experience in development of math intensive algorithms and software, in hardware design, production, testing and exploitation of various radio and telecommunication equipment, DSPINI’s team uses strong background to provide to each customer the most advantageous solution.