SergeModular

Hark - there's another way.

What you're planning on here is called a 'control track'. If you're not
fitted with either an envelope detector or voltage follower, try this at
home:

Run the outputs of the deck into a Comparator. That'll square it off
nicely. If you're seeking pulses instead of gate, run the output of the
Comparator into a USG set to0 attack and 0 decay, and use the ned cycle
pulse output.

Your recorded signal should be as loud and as clear as possible (sine waves)

Don't work?

1) fiddle with the output level of the deck.

2) Fiddle with the length of the envelope used in the track you're recording
as the control track.

Getting too many pulses per tape event?

Shorted the envelope and/or try running the tape signal through a lowpass
filter before or after the comparator or filtering the signal out of the
comparator - this should clear it up.

For more info on some remarkable control track possibilities, including
recording two (or more) on a single deck channel and decoding them back to
two signlas once in the synth, I've put a page up about Mort's use of same
here:

http://www.buzzclick-music.com/mort_lore.html

it's pretty interesting.

enjoy (or not)

- P





Ben Vehorn wrote:

> Hi John,
> Well, I would think that the inputs of the tape machine would block DC
> signals, and isn't a gate a DC signal? But you say you've had luck with
> this before, so it should work the same with as a tape machine as with
> an Adat, I would guess...
> But my suggestion would be to generate a short percussive spike in the
> audio range (i.e. a click track) and record that to tape. I think that
> would work better for acting as a trigger.
> I have a Tama TTB-1000 that I use for this... it has 8 audio inputs and
> generates proper triggers from audio. This way any click track,
> individual output from a drum machine, or other audio source can be
> used as a trigger/clock source. I don't see them for sale much but they
> are very handy for this sort of thing and generally sell for very
> cheap.
> However, if you needed variable length gates instead of triggers this
> would be tricky, but it could probably be done with a sustained audio
> signal and a comparator, perhaps you already have one in your Serge
> system.
> Good luck.
> ---Ben
>
> On Aug 3, 2005, at 2:10 PM, johnrichoux wrote:
>
>> Hello fellow Sergers
>>
>> I picked up a used Tascam TSR-8 a little while back for analog
>> recording of my Serge. I
>> just got around to testing it out. What I thought I could do is
>> record a gate pulse from a
>> DTG to track 8 and then use the recorded track as a clock source to
>> trigger sequences and
>> stuff. However, I can't get the recorded signal to trigger anything.
>> I've recorded with "Sync
>> Lock" on and off, I've varied the slope of the DTG. I'm not going
>> though any mixer - just
>> straight from bananna to rca (with a few adaptors). There is
>> definitely a click being
>> recorded, but it won't trigger.
>>
>> I had some success doing something like this a few years ago on my
>> old blackface ADAT
>> before it died. I should add that I'm very pleased with sound quality
>> I'm getting from the
>> TSR-8.
>>
>> The Tascam manual says that the unit is designed to record either
>> SMPTE or FSK. I have
>> the CH8 ref level set to +4; it's getting plenty of signal. I've
>> tried attenuating it thu my C/
>> M module. Full on it bleeds over to the ch7 meter.
>>
>> Anyone have any experience with this kind of setup? Any suggestions
>> are welcome.
>> Thanks
>> John Richoux
>>
>>
>>
>>
>> Keep on Patchin'!
>>
>>
>>
>>
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>