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From: janzen@pldvax.DEC (Tom J. LMO4-2/B5 279-5421)
Newsgroups: net.music.synth
Subject: digital delays with long times
Message-ID: <1607@decwrl.UUCP>
Date: Thu, 5-Dec-85 09:03:52 EST
Article-I.D.: decwrl.1607
Posted: Thu Dec  5 09:03:52 1985
Date-Received: Tue, 10-Dec-85 05:03:10 EST
Sender: daemon@decwrl.UUCP
Organization: Digital Equipment Corporation
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I just bought a cheap RDS1900 of DOD Digitech for $240 in semirural
Massachusetts.  It is 8 bits, a homebrew ADC made with a DAC, and the
famous DAC08, and is companded.  It's OK for me.
I really wanted about 5 seconds of delay for this piece using a loop
of two bars of Chopin that I wrote.  I also needed 2 seconds (but 1.9seconds
is OK) for this alto recorded piece called Four Old songs that I wrote.
Also, I am interested in longer delays.  I figure I could get 6.4 seconds
if I built a delay with 256K RAMs.  Also, Paul Dresher has used, I recall,
22 second delays, using two tape recorders twelve feet appart.  Long delays
are very useful, but not in regular pop stuff.  I like to process the delayed
signall, maybe with a ring modulator, or a harmonizer if I build one,
(the cheapest is $540, but the variable speed tape recorders that don't
change the pitch have cheap harmonizers in them, and they're only $100),
before mixing it back in.  It sounds like not a delay but another instrument
altogether in canon with me.  The ring modulator on the piano sounds like
a percussion orchestra or prepared piano, playing percussion against me.
TOm