WGCLAR

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wgclar

   ar   wgclar    kamp, kfreq, kstiff, iatt, idetk, kngain, kvibf, kvamp, \
                  ifn[, iminfreq]

DESCRIPTION

Audio output is a tone similar to a clarinet, using a physical model developed from Perry Cook, but re-coded for Csound.

INITIALIZATION

iatt - time in seconds to reach full blowing pressure. 0.1 seems to correspond to reasonable playing. A longer time gives a definite initial wind sound.

idetk - time in seconds taken to stop blowing. 0.1 is a smooth ending

ifn - table of shape of vibrato, usually a sine table, created by a function

iminfreq - lowest frequency at which the instrument will play. If it is omitted it is taken to be the same as the initial kfreq.

PERFORMANCE

A note is played on a clarinet-like instrument, with the arguments as below.

kamp - Amplitude of note.

kfreq - Frequency of note played.

kstiff - a stiffness parameter for the reed. Values should be negative, and about -0.3. The useful range is approximately -0.44 to -0.18.

kngain - amplitude of the noise component, about 0 to 0.5

kvibf - frequency of vibrato in Hertz. Suggested range is 0 to 12

kvamp - amplitude of the vibrato

EXAMPLE:

        a1    wgclar      31129.60, 440, -0.3, 0.1, 0.1, 0.2, 5.735, 0.1, 1
              out         a1

AUTHOR:

John ffitch
University of Bath, Codemist Ltd.
Bath, UK
1997

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