SPR Classic TM 600 bps Vocoder has superior characteristics in comparison
with others.
We have developed vocoder for 600 bps bit rate, basing on our proprietary
SPR (Sinusoidal Pulsed Representation) model of speech coding.
We compared the new vocoder with MELPe 600 bps standard vocoder and found
superiority of our vocoder by all characteristics,
including speech quality, robustness, delay, computing complexity
and memory usage. Moreover, the superiority is significant for majority of the
characteristics.