Specifications

S1C33 Family Middleware and Firmware

Technology

Contents

Compression Application

name rate package

VSX Technology for performing timebase and silent compression based on ADPCM About 1/7 S5U1C330V1S

Supports a sampling rate of 8kHz S5U1C330T1S

VSX2 An upgraded version of VSX supporting sampling rates of 11.025 to 22.05kHz About 1/7 S5U1C330T1S

ADPCM High-speed version of ADPCM technology with the same sound quality as G726 About 1/3 S5U1C330V1S

Supports sampling rates of 8 to 22.05kHz

VOX Technology for realizing high voice compression rates using voice synthesis About 1/10 S5U1C330V1S

technology

Supports a sampling rate of 8kHz

VSC Technology for changing the speed and pitch of voice by a factor of 1/2 to 2 – S5U1C330V1S

PPCM Capable of packing 10-bit PCM data without changing the original sound, About 3/4 S5U1C330V1S

using the packed PCM method

Supports sampling rates of 8 to 22.05kHz

PCM15 High-precision 15-bit D/A technology using hybrid PWM, also capable of stereo – Evaluation tool

Supports sampling rates of 16 to 48kHz in data CD

G729 G729 Annex-A About 1/10 S5U1C330G3S

Supports a sampling rate of 8kHz

G723 G723.1 Annex-A About 1/10 S5U1C330G3S

Supports a sampling rate of 8kHz

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VOICE COMPRESSION/EXPANSION AND VOICE PROCESSING TECHNOLOGY LIST