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Signal Generators: Basic Oscillators

poscil, poscil3

  ar      poscil     kamp, kcps, ifn [,iphs]
  kr      poscil     kamp, kcps, ifn [,iphs]
  ar      poscil3    kamp, kcps, ifn [,iphs]
  kr      poscil3    kamp, kcps, ifn [,iphs]
  

Description

High precision oscillators. poscil3 and lposcil3 use cubic interpolation.

Initialization

ifn – function table number

iphs (optional) – initial phase of sampling, expressed as a fraction of a cycle (0 to 1). The default value is 0.

Performance

ar – output signal

kamp – amplitude

kcps – frequency

poscil (precise oscillator) is the same as oscili,but allows much more precise frequency control, especially when using long tables and low frequency values. It uses floating-point table indexing, instead of integer math, like oscil and oscili. It is only a bit slower than oscili.

Author

Gabriel Maldonado (poscil)
Italy
1998 (New in Csound version 3.52)

John ffitch (poscil3)
University of Bath/Codemist Ltd.
Bath, UK
February, 1999 (New in Csound version 3.52)


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Signal Generators: Basic Oscillators