timeinstk

timeinstk — Read absolute time in k-rate cycles.

Description

Read absolute time, in k-rate cycles, since the start of an instance of an instrument. Called at both i-time as well as k-time.

Syntax

kres timeinstk

Performance

timeinstk is for time in k-rate cycles. So with:

  sr    = 44100
  kr    = 6300
  ksmps = 7

then after half a second, the timeinstk opcode would report 3150. It will always report an integer.

timeinstk produces a k-rate variable for output. There are no input parameters.

timeinstk is similar to timek except it returns the time since the start of this instance of the instrument.

Examples

Here is an example of the timeinstk opcode. It uses the file timeinstk.csd.

Example 902. Example of the timeinstk 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 timeinstk.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 value from timeinstk every half-second.
  k1 timeinstk
  printks "k1 = %f samples\\n", 0.5, k1
endin


</CsInstruments>
<CsScore>

; Play Instrument #1 for two seconds.
i 1 0 2
e


</CsScore>
</CsoundSynthesizer>


Its output should include lines like this:

k1 = 1.000000 samples
k1 = 2205.000000 samples
k1 = 4410.000000 samples
k1 = 6615.000000 samples
k1 = 8820.000000 samples
      

See Also

timeinsts, timek, times

Credits

Author: Robin Whittle
Australia
May 1997

Example written by Kevin Conder.