Andy wrote: > Is that Similar in design to the SAMDAC at all when used to play back > MODs? (That was one of my favourite add-ons combined with the SAM MOD > player when they first appeared. Real sound out my SAM for the first > time!)
The Voicebox was a SP0256 based Speech Synthesisor. The Blue Alpha Sampler (released 1992) had a single 8-bit DAC to give a mono channel out, and a 8-bit ADC to give a 8-bit sampling channel. It was quite a clunky interface with a lot of stuff for the address decoding - Adrian Parker liked using the 8255 I/O chip! Stefan's excellent Mod player processed the four .mod channels at 6-bit resolution to mix to play the tune out the single 8-bit channel. Edwin was up next with the EDDAC and I remember Stefan demoing it at the Gloucester shows in 1994 if I remember rightly, with the plans appearing in various disk magazines and then released prebuilt as the SAMDAC in early 1995. The EDDAC/SAMDAC had two 8-bit DACs, one for the left channel, one for the right. Therefore the four mod sample channels could be processed in 7-bit resolution, two samples mixed to the left 8-bit channel, two for the right channel. > Now of course, we have Quazar ;-) Now? :) It was 13 years ago this month I first demoed the Quazar Surround at the Gloucester show, and I'm still building them up occasionally! It's got six DACs, which could be configured to play as six 8-bit channels or two 16-bit and two 8-bit channels, in surround. Colin ===== Quazar : Hardware, Software, Spares and Repairs for the Sam Coupe 1995-2008 - Celebrating 14 Years of developing for the Sam Coupe Website: http://www.samcoupe.com/
