ftlptim

ftlptim — Returns the loop segment start-time of a stored function table number.

Description

Returns the loop segment start-time of a stored function table number.

Syntax

ftlptim(x) (init-rate args only)

Performance

Returns the loop segment start-time (in seconds) of stored function table number x. This reports the duration of the direct recorded attack and decay parts of a sound sample, prior to its looped segment. Returns zero (and a warning message) if the sample does not contain loop points.

Examples

Here is an example of the ftlptim opcode. It uses the files ftlptim.csd, and Church.wav.

Example 324. Example of the ftlptim 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
-odac     ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o ftlptim.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2
0dbfs   =1

instr 1

itim = ftlptim(1)
     print itim
aout loscil3 .8, 40, 1
     outs aout, aout

endin
</CsInstruments>
<CsScore>
f 1 0 0 1 "Church.wav" 0 0 0 ;Csound computes tablesize

i 1 0 5
e
</CsScore>
</CsoundSynthesizer>


The audio file Church.wav is a looped sample, its output should include lines like these:

Base Note : 60	Detune    : 0
Low  Note : 0	High Note : 127
Low  Vel. : 0	High Vel. : 127
Gain      : 1	Count     : 1
mode      : 801
start     : 4529	end       : 4912	count  :0
mode      : 0
start     : 0	end       : 0	count  :0
      

See Also

ftchnls, ftlen, ftsr, nsamp

Credits

Author: Barry L. Vercoe
MIT
Cambridge, Massachussetts
1997