agn@cmu-cs-k.ARPA (Andreas Nowatzyk) (01/26/85)
Is there any standart for *digital* audio interconnections?
It seems that CD players, PCM audio systems and possibly other
digital audio-equipment (say a digital equilizer) will need digital
interconnections, defering the D-to-A conversion to the last point in
the chain (this could be an active Box with one DAC/filter/power-amp
for each speaker system, where the band-splitting and individual
equilization is done digitally -- think VLSI).
To be more precise:
1) Is there a CD-player available that has a connector on the back
that gives the stream of 16bit-words after the error-correction
logic and before any filter/over-sample operation?
2) Is there a PCM encoder that accepts 16bit-words instead of an
analog input?
3) Are there other digital audio-sources in use or planned (such as
synthesizer, microphones [there are methods for precise
analog-air-pressure to digital-electrical signal], etc) ?
Please send mail to: agn@cmu-cs-k.ARPA
or: ...!seismo!cmu-cs-k!agn
Thanks -- Andreasron@brl-tgr.ARPA (Ron Natalie <ron>) (01/28/85)
> Is there any standart for *digital* audio interconnections? > It seems that CD players, PCM audio systems and possibly other > digital audio-equipment (say a digital equilizer) will need digital > interconnections, defering the D-to-A conversion to the last point in > the chain (this could be an active Box with one DAC/filter/power-amp > for each speaker system, where the band-splitting and individual > equilization is done digitally -- think VLSI). > > To be more precise: > 1) Is there a CD-player available that has a connector on the back > that gives the stream of 16bit-words after the error-correction > logic and before any filter/over-sample operation? > 2) Is there a PCM encoder that accepts 16bit-words instead of an > analog input? > 3) Are there other digital audio-sources in use or planned (such as > synthesizer, microphones [there are methods for precise > analog-air-pressure to digital-electrical signal], etc) ? > > Please send mail to: agn@cmu-cs-k.ARPA > or: ...!seismo!cmu-cs-k!agn > > Thanks -- Andreas It looks from the schematics for my cheapo Technics player that you can get the digital out with no problem at all. You just need to tear into it.
ron@brl-tgr.ARPA (Ron Natalie <ron>) (01/28/85)
> 3) Are there other digital audio-sources in use or planned (such as > synthesizer, microphones [there are methods for precise > analog-air-pressure to digital-electrical signal], etc) ? > There are numerous digital synthesizers such as my Yamaha DX-7 or the Kurzweil 250. They don't have digital outputs yet. Both Yamaha and Kurzweil are planning computers to allow users at the digital samplings. Yamahas looks kind of disappointing. The Kurzweil involves connecting their sythesizer to a McIntosh. Superb synthesizer but at over ten thousand dollars, it's a little too steep for me. -Ron