Thread View: comp.dsp
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Started by Byron A Jeff
Sat, 23 Sep 1989 15:49
Digital Mixer Using Burr-Brown 200 Khz ADC
Author: Byron A Jeff
Date: Sat, 23 Sep 1989 15:49
Date: Sat, 23 Sep 1989 15:49
36 lines
2062 bytes
2062 bytes
How difficult a proposition would it be to use this BB ADC to build a multi-channel digital mixer? I haven't read the specs on it yet (I will today at the Tech library) but if it's dual 200Khz ADC then it should be possible to sample 8 audio channels at CD (44.1 Khz) or DAT (48 Khz) quality. So how feasible is something like this: ----------- --------- --------- -------- -------- -------- -------- |8 |--|Analog |--|Filters|--| | | | | | | | |Audio |--|Multi- | | and | | ADC |---| DSP |--| DAC |--|Filter| |channels |--|plexors|--| S/H |--| | | | | | | | ----------- --------- --------- -------- -------- -------- -------- With the output being either high quality audio or DAT compatable digital. The DSP would handle all mixing, EQ, effects, etc. If samples can be obtained for ~$50 then a box for between $200 to $300 could be realized. If the DSP is fast enough then another ADC could easily be added for a grand total of 16 channels. Any comments? Most of the info I have is from "Musical applications for Microprocessors". Crossposting is for exposure. Redirect the discussion to the appropriate newsgroup. comp.dsp - Role of DSP processor/algorithms in such a system. sci.electronics - electonic aspects (analog filters, S/H, ect) rec.music.synth - applications (for example midi control for setting mixer/effects parameters, midi controled fades, and the like.) BAJ -- Another random extraction from the mental bit stream of... Byron A. Jeff Georgia Tech, Atlanta GA 30332 Internet: byron@pyr.gatech.edu uucp: ...!gatech!pyr!byron
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