@tubetime Translated from https://ja.wikii2.com/wiki/Sound_Blaster
The card contained a screen-printed 40-pin PGA (Creative Technology Programable Logic) integrated circuit stamped "CT 1302A CTPL8708". The chip looked exactly like the "DSP" of the future SoundBlasters. It can be used to automate certain sound operations, such as envelope control.
@humulus this isn't true.