[sdiy] tr 707 question

[cheater cheater]

ohh that's pretty cool, i didn't even realize this thing had analogue
envelopes/VCAs :) Yes, A/R pots could definitely make it interesting!
Also a second L/A/R envelope for the pitch - you can use VCOs for the
clock and then it's starting to be a nice little machine..

Add a little bit more special knobs (HPF for the cym and HH, LPF for
the BD, overdrive for the BD, overdrive for the cowbell/rimshot, said
pitch envelope for the BD, lfo for the HH, additional VCO output -
from the clocking VCO - going into the BD channel through its VCA,
semitone selectors, hardsync between instruments) and you've got a
very cool little thing.

D.

On Sat, Aug 28, 2010 at 23:13, Stewart Pye <stewpye at optusnet.com.au> wrote:
> Damien,
> Do you have the service manual?
>
> The rimshot trig out actually comes from a separate pin on the micro,
> however there is a separate trigger signal for each voice that goes to the
> envelope generators. They are standard analogue decay EG's so you should get
> a trigger pulse right at the beginning of each sound. I think it will be a
> negative going pulse. I'd replicate the EG circuit but without the decay cap
> so that the Accent level varies the trigger level and you get a positive
> going pulse.
>
> The copy of the manual I have is a bit blurry, but you should be able to
> take the signal from the outputs of IC27 and IC28.
>
> I guess I should go open up my 707!
> If you really want to hack the 707 you could put a decay pot in for each
> voice and take the outputs from the envelope generators!
>
> Cheers,
> Stew.
>
>
> cheater cheater wrote:
>>
>> Hi guys,
>> is it possible to get analog gate or trigger out of the 707 for the
>> separate sounds? I don't mean through midi, the timing isn't good
>> enough that way. I think it could be possible to intercept the
>> communication to the memory, to find out when the 707 is reading off
>> the beginning of the samples.. right?
>>
>> Cheers,
>> D.
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>
>