82 lines
2.5 KiB
Scheme
82 lines
2.5 KiB
Scheme
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; /b_gen Call a command to fill a buffer
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; int - buffer number
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; string - command name
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; .. command arguments
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; Plug-ins can define commands that operate on buffers. The arguments
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; after the command name are defined by the command. The currently
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; defined buffer fill commands are listed below in a separate section.
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; Buffer Fill Commands
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; These are the currently defined fill routines for use with the
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; /b_gen command.
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; Common flags are defined as follows:
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; 1 - normalize Normalize peak amplitude of wave to 1.0.
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; 2 - wavetable If set, then the buffer is written in wavetable
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; format so that it can be read by interpolating
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; oscillators.
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; 4 - clear If set then the buffer is cleared before new partials
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; are written into it. Otherwise the new partials are
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; summed with the existing contents of the buffer.
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; sine1
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; int - flags, see above
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; [
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; float - partial amplitude
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; ] * N
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; Fills a buffer with a series of sine wave partials. The first float
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; value specifies the amplitude of the first partial, the second float
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; value specifies the amplitude of the second partial, and so on.
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; sine2
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; int - flags, see above
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; [
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; float - partial frequency (in cycles per buffer)
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; float - partial amplitude
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; ] * N
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; Similar to sine1 except that each partial frequency is specified
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; explicitly instead of being an integer series of
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; partials. Non-integer partial frequencies are possible.
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; sine3
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; int - flags, see above
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; [
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; float - partial frequency (in cycles per buffer)
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; float - partial amplitude
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; float - partial phase
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; ] * N
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; Similar to sine2 except that each partial may have a nonzero
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; starting phase.
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; cheby
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; int - flags, see above
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; [
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; float - amplitude
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; ] * N
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; Fills a buffer with a series of chebyshev polynomials, which can be
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; defined as: cheby(n) = amplitude * cos(n * acos(x)). The first
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; float value specifies the amplitude for n = 1, the second float
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; value specifies the amplitude for n = 2, and so on. To eliminate a
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; DC offset when used as a waveshaper, the wavetable is offset so that
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; the center value is zero.
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; copy
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; int - sample position in destination
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; int - source buffer number
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; int - sample position in source
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; int - number of samples to copy
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; Copy samples from the source buffer to the destination buffer
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; specified in the b_gen command. If the number of samples to copy is
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; negative, the maximum number of samples possible is copied.
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; Asynchronous. Replies to sender with /done when complete.
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