Speech storage applications require a codec capable to efficiently compress
speech for more effective usage of data storage resources. At the same time the
codec should secure high voice quality.
The SPIRIT proprietary Voice Storage Codec (VoStoC) is specifically developed for
such applications, as it allows high compression rates without significant quality
loss.
Features
ICELP-based algorithm
Six average bit rates supported (approximated values): 2400 bps, 3200 bps, 4000 bps, 5600 bps, 8000 bps, and 12000 bps
Better speech quality than standard codecs provide at comparable bit rates
Variable Bit Rate – output bit rate depends on information density of the input speech
Flexible trade-off between compression rate and speech quality
Input data 8 KHz 16 bit PCM
Code is reentrant and supports dynamic memory allocation
Benefits
Efficient voice compression to save data storage resources
Better voice quality than standard codecs provide at comparable bit rates
6 average bit rates for flexible trade-off between compression rate and speech quality
