ftcps

ftcps — Returns the base frequency of a stored function table in Hz.

Description

Returns the base frequency of a stored function table in Hz..

Syntax

ftcps(x) (init-rate args only)

Performance

Returns the base frequency of stored function table, number x. ftcps is designed for tables storing audio waveforms read from files (see GEN01).

ftcps returns -1 in case of an error (no base frequency set in table or non-existent table).

Examples

Here is an example of the ftcps opcode.

Example 317. Example of the ftcps opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
; Audio out   Audio in
-odac           -iadc    ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o ftlen.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1

; Instrument #1.
instr 1
  ; Print out the base frequency of Table #1.
  ; if it has been set in the original file.
  icps = ftcps(1)
  print icps
endin


</CsInstruments>
<CsScore>

; Table #1: Use an audio file, Csound will determine its base frequency, if set.
f 1 0 0 1 "sample.wav" 0 0 0

; Play Instrument #1 for 1 second.
i 1 0 1
e


</CsScore>
</CsoundSynthesizer>


See Also

ftchnls, ftlptim, ftsr, nsamp

Credits

Author: Victor Lazzarini
2010

Example written by Victor Lazzarini