[sdiy] The Anything Box: Laptop as module?

[John L Marshall]

You missed my point. No MIDI. If you use FM in the sequencer such as n-
Track studio and frequency to voltage converters at the output of your eight
channel audio card you may generate control voltages. For example the F/V
converter could be set to 1000Hz/volt with zero at 1000Hz. A frequency of
1000Hz in the sequencer will produce 0 volts out of the F/V converter. 2kHz
will produce 1 volt DC and so on.

F/V converter chips exist with good (not superior) linearity. Not much other
hardware is required. This is on my list of things to do.


Take care,
John
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Pacific Northwest DIY Synthesizer meeting, January 18, 2003
See: www.sound-photo.com
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----- Original Message -----
From: <media.nai at rcn.com>
To: "John L Marshall" <john.l.marshall at gte.net>
Cc: "synth-diy" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, October 25, 2002 6:40 AM
Subject: Re: [sdiy] The Anything Box: Laptop as module?


>
> >There are plenty of sequencers that record frequency. Use frequency to
> >voltage converters to derive control voltages. FM
> >
> >There are plenty of sequencers that record amplitude. Detect the
amplitude
> >to derive control voltages. AM
>
> There are sequencers that can convert pitch and amplitude to MIDI, but
> afaik, none of them can generate DC voltages.  Even if they could, digital
> audio interfaces are AC coupled.
>
>
>