ar gogobel kamp, kfreq, ihrd, ipos, imp, kvibf, kvamp, ivibfm
Audio output is a tone related to the striking of a cow bell or similar. The method is a physical model developed from Perry Cook, but re-coded for Csound.
ihrd -- the hardness of the stick used in the strike. A range of 0 to 1 is used. 0.5 is a suitable value.
ipos -- where the block is hit, in the range 0 to 1.
imp - a table of the strike impulses. The file "marmstk1.wav" is a suitable function from measurements, and can be loaded with a GEN01 table.
ivfn - shape of vibrato, usually a sine table, created by a function.
A note is played on a cowbell-like instrument, with the arguments as below.
kamp – Amplitude of note.
kfreq – Frequency of note played.
kvibf – frequency of vibrato in Hertz. Suggested range is 0 to 12
kvamp – amplitude of the vibrato
a1 gogobel 31129.60, 440, p4, 0.561, 3, 6.0, 0.3, 1 outs a1, a2
Prior to Csound version 3.52 (February, 1999), this opcode was called agogobel.
John ffitch (after Perry Cook)
University of Bath, Codemist Ltd.
New in Csound version 3.47