Two keynote speakers are confirmed for the SBCM 2009, Prof. Miller
Puckette, from University of California San Diego and Colombian
composer Catalina Peralta.
New sounds from guitars
(Miller Puckette)
Now that it's easy to get multiple channels of sound into and out of a
computer with pretty low throughput latency, an obvious and attractive
application is signal-processing an electric guitar separately string
by string. This permits a wide variety of non-linear processes which,
if properly designed, preserve the periodicity of the individual string
while making possible a wide variety of new sounds. Pitch-synchronous
algorithms also become available. In many situations it is possible to
separate the effect of amplitude change from that of changing
harmonics, thus preserving the playability of the instrument. Several
examples of this will be described here, including octave changes, wave
bashing, formant generation, and neighboring-string intermodulation.
Electroacoustic approach
to some colombian composers (Catalina Peralta)
It will be a presentation about a selection of relatively recent
electroacoustic and computer music pieces, by composers as Harold
Vasquez, Roberto García, Mauricio Bejarano, Germán Toro,
Catalina Peralta, Alexandra Cárdenas.
