diff (Csound opcode)
Modify a signal by differentiation.
ar diff asig kr diff ksig
iskip: (optional), initial disposition of internal save space (see reson). The default value is 0.
integ(diff(sig)) == sig
The following example demonstrates that the amplitude of the resulting signal is dependand on the frequency of the input signal.
sr = 44100 kr = 4410 ksmps = 10 nchnls = 2 instr 1 ilen = p3 kcps expseg 1, ilen, sr/2.2 kamp = 20000 aleft oscili kamp, kcps, 1 aright diff aleft outs aleft, aright endin
f 1 0 16384 10 1 i 1 0 1
The upper signal correspondents to aleft, the lower to aright:
Instruments
This opcode is used for the following instruments:
- ...
>Other Csound opcodes.