sprintfk — printf-style formatted output to a string variable at k-rate.
sprintfk writes printf-style formatted output to a string variable, similarly to the C function sprintf(). sprintfk runs both at initialization and performance time.
Sfmt -- format string, has the same format as in printf() and other similar C functions, except length modifiers (l, ll, h, etc.) are not supported. The following conversion specifiers are allowed:
d, i, o, u, x, X, e, E, f, F, g, G, c, s
xarg1, xarg2, ... -- input arguments (max. 30) for format, should be i-rate for all conversion specifiers except %s, which requires a string argument. sprintfk also allows k-rate number arguments, but these should still be valid at init time as well (unless sprintfk is skipped with igoto). Integer formats like %d round the input values to the nearest integer.
Here is an example of the sprintfk opcode. It uses the file sprintfk.csd.
Example 434. Example of the sprintfk 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 sprintfk.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 48000 ksmps = 16 nchnls = 2 0dbfs = 1 ; Example by Jonathan Murphy 2007 instr 1 S1 = "1" S2 = " + 1" ktrig init 0 kval init 2 if (ktrig == 1) then S1 strcatk S1, S2 kval = kval + 1 endif String sprintfk "%s = %d", S1, kval puts String, kval ktrig metro 1 endin </CsInstruments> <CsScore> i1 0 10 e </CsScore> </CsoundSynthesizer>