Info on Soundblaster 16 ASPs signal prosessor.

[jber...@elixir.lne.kth.se]

ASP ?
Here is the answer (cutted from SGS-Thomsons information)

Creative Technology SB16's ASP is an digital signal processor based ASIC from
SGS-Thomsons ST18932. This design consists of five memory elements- four
512 words x 8bits program RAMs, a 512x16 data RAM -plus the DSP megacell.
Power consumtion is 350mW and 0.5mW standby. The 13 MIPS application specific
DSP core has been used for data compression techniques.
The customized algorithm implemented in th ST18932 assembler language
succeded in saving 75% of equivalent disk space over competitors' solution
then decoding a full 16-bit stereo recorning.
Development time was five months, from concept to finished prototypes.

Soundblaster 16 Audio Sub System:

------------ --------------- Micro
!---------------------! !micro- ! ! Microphoe ! <----------
!Audio Compression ! !controller! ! AGC & power-! Speaker
!CB1200 Standard Cell ! ------------ ! amp ! ----------->
!with ST18932 CORE ! ---------------
!---------------------! ! A
! V !
------------------- ---------- ---------------- line IN
! audio controller! <--- !16-Bit !<---- ! Stereo Mixer&! <----------
------------------- ---->!A/D, D/A!----> ! Volumecontrol! CD IN
! ---------- ! STKM2xxxx ! <----------
! ----------------
V A
-------------- --------------- !
! PC-ISA BUS ! !FM syntesizer! ---/
-------------- ---------------

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