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2007 October 15
Arrow SPR (Sinusoidal Pulsed Representation)- effective method of speech coding in range of 300-4800 bps bit rates.
2007 October 15

SPR Vococder

We have developed proprietary method of the speech coding, which have named as Sinusoidal Pulsed Representation (SPR). This method differs from well-known first of all by more complex model of speech synthesis. Speech is synthesized as mixture of three components:
- harmonics of the fundamental frequency (Pitch),
- noise,
- aperiodic pulses
Such representation allows to synthesize all speech sounds, including voiced, unvoiced, mixed and also complex transients with aperiodic vibration of vocal cords.

SPR Vocoders