Version 3.2

projects/examples/recordN.cpp

@@ -0,0 +1,71 @@
+/******************************************/
+/*
+  Example program to record N channels of data
+  by Gary P. Scavone, 2000
+
+  This program is currently written to read
+  from a realtime audio input device and to
+  write to a WAV output file.  However, it
+  is simple to replace the instance of
+  RtWvIn with any other WvIn subclass.
+  Likewise, WavWvOut can be replaced with any
+  other WvOut subclass.
+*/
+/******************************************/
+
+#include "RtWvIn.h"
+#include "WavWvOut.h"
+
+void usage(void) {
+  /* Error function in case of incorrect command-line
+     argument specifications
+  */
+  printf("\nuseage: recordN N file time fs \n");
+  printf("    where N = number of channels,\n");
+  printf("    file = the .wav file to create,\n");
+  printf("    time = the amount of time to record (in seconds),\n");
+  printf("    and fs = the sample rate.\n\n");
+  exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+  // minimal command-line checking
+  if (argc != 5) usage();
+
+  int chans = (int) atoi(argv[1]);
+  float sample_rate = atof(argv[4]);
+  float time = atof(argv[3]);
+
+  // Define and open the realtime input device
+  WvIn *input;
+  try {
+    input = new RtWvIn(chans, sample_rate);
+  }
+  catch (StkError& m) {
+    m.printMessage();
+    exit(0);
+  }
+  
+  // Define and open the soundfile for output
+  WvOut *output;
+  try {
+    output = new WavWvOut(argv[2],chans);
+  }
+  catch (StkError& m) {
+    m.printMessage();
+    exit(0);
+  }
+
+  // Here's the runtime loop
+  int i=0;
+  int samples = (int) (time*SRATE);
+  while (i<samples) {
+    output->mtick(input->mtick());
+    i++;
+  }
+
+  // Clean up
+  delete input;
+  delete output;
+}