ftlptim

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.

<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

Table Control:Table Queries

Credits

Author: Barry L. Vercoe
MIT
Cambridge, Massachussetts
1997