Here is an example of the filelen opcode. It uses the files filelen.orc, filelen.sco, and mary.wav.
Example 124. Example of the filelen opcode.
/* filelen.orc */ ; Initialize the global variables. sr = 44100 kr = 4410 ksmps = 10 nchnls = 1 ; Instrument #1. instr 1 ; Print out the length of the audio file ; "mary.wav" in seconds. ilen filelen "mary.wav" print ilen endin /* filelen.orc */
/* filelen.sco */ ; Play Instrument #1 for 1 second. i 1 0 1 e /* filelen.sco */
The audio file “mary.wav” is 3.5 seconds long. So filelen's output should include a line like this:
instr 1: ilen = 3.501