[Stk] How to do sample rate 48000 or 96000 ?

[Shamun toha md]

While trying to record 44100 Hz it records the file as record.raw and i can
use the sample to test it. But when i try to record as 48000 sample rate or
above, it does nothing.

uname -a : Linux example 2.6.32.12-114.fc12.i686 #1 SMP Tue Apr 27 21:29:58
UTC 2010 i686 i686 i386 GNU/Linux


Here is my code record.cpp:

/******************************************/
/*
  record.cpp
  by Gary P. Scavone, 2007

  This program records audio from a device and writes it to a
  header-less binary file.  Use the 'playraw', with the same
  parameters and format settings, to playback the audio.
*/
/******************************************/

#include "RtAudio.h"
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <stdio.h>

/*
typedef char  MY_TYPE;
#define FORMAT RTAUDIO_SINT8
*/

typedef signed short  MY_TYPE;
#define FORMAT RTAUDIO_SINT16

/*
typedef signed long  MY_TYPE;
#define FORMAT RTAUDIO_SINT24

typedef signed long  MY_TYPE;
#define FORMAT RTAUDIO_SINT32

typedef float  MY_TYPE;
#define FORMAT RTAUDIO_FLOAT32

typedef double  MY_TYPE;
#define FORMAT RTAUDIO_FLOAT64
*/

// Platform-dependent sleep routines.
#if defined( __WINDOWS_ASIO__ ) || defined( __WINDOWS_DS__ )
  #include <windows.h>
  #define SLEEP( milliseconds ) Sleep( (DWORD) milliseconds )
#else // Unix variants
  #include <unistd.h>
  #define SLEEP( milliseconds ) usleep( (unsigned long) (milliseconds *
1000.0) )
#endif

void usage( void ) {
  // Error function in case of incorrect command-line
  // argument specifications
  std::cout << "\nuseage: record N fs <duration> <device>
<channelOffset>\n";
  std::cout << "    where N = number of channels,\n";
  std::cout << "    fs = the sample rate,\n";
  std::cout << "    duration = optional time in seconds to record (default =
2.0),\n";
  std::cout << "    device = optional device to use (default = 0),\n";
  std::cout << "    and channelOffset = an optional channel offset on the
device (default = 0).\n\n";
  exit( 0 );
}

struct InputData {
  MY_TYPE* buffer;
  unsigned long bufferBytes;
  unsigned long totalFrames;
  unsigned long frameCounter;
  unsigned int channels;
};

// Interleaved buffers
int input( void *outputBuffer, void *inputBuffer, unsigned int
nBufferFrames,
           double streamTime, RtAudioStreamStatus status, void *data )
{
  InputData *iData = (InputData *) data;

  // Simply copy the data to our allocated buffer.
  unsigned int frames = nBufferFrames;
  if ( iData->frameCounter + nBufferFrames > iData->totalFrames ) {
    frames = iData->totalFrames - iData->frameCounter;
    iData->bufferBytes = frames * iData->channels * sizeof( MY_TYPE );
  }

  unsigned long offset = iData->frameCounter * iData->channels;
  memcpy( iData->buffer+offset, inputBuffer, iData->bufferBytes );
  iData->frameCounter += frames;

  if ( iData->frameCounter >= iData->totalFrames ) return 2;
  return 0;
}

int main( int argc, char *argv[] )
{
  unsigned int channels, fs, bufferFrames, device = 0, offset = 0;
  double time = 2.0;
  FILE *fd;

  // minimal command-line checking
  if ( argc < 3 || argc > 6 ) usage();

  RtAudio adc;
  if ( adc.getDeviceCount() < 1 ) {
    std::cout << "\nNo audio devices found!\n";
    exit( 1 );
  }

  channels = (unsigned int) atoi( argv[1] );
  fs = (unsigned int) atoi( argv[2] );
  if ( argc > 3 )
    time = (double) atof( argv[3] );
  if ( argc > 4 )
    device = (unsigned int) atoi( argv[4] );
  if ( argc > 5 )
    offset = (unsigned int) atoi( argv[5] );

  // Let RtAudio print messages to stderr.
  adc.showWarnings( true );

  // Set our stream parameters for input only.
  bufferFrames = 512;
  RtAudio::StreamParameters iParams;
  iParams.deviceId = device;
  iParams.nChannels = channels;
  iParams.firstChannel = offset;

  InputData data;
  data.buffer = 0;
  try {
    adc.openStream( NULL, &iParams, FORMAT, fs, &bufferFrames, &input, (void
*)&data );
  }
  catch ( RtError& e ) {
    std::cout << '\n' << e.getMessage() << '\n' << std::endl;
    goto cleanup;
  }

  data.bufferBytes = bufferFrames * channels * sizeof( MY_TYPE );
  data.totalFrames = (unsigned long) (fs * time);
  data.frameCounter = 0;
  data.channels = channels;
  unsigned long totalBytes;
  totalBytes = data.totalFrames * channels * sizeof( MY_TYPE );

  // Allocate the entire data buffer before starting stream.
  data.buffer = (MY_TYPE*) malloc( totalBytes );
  if ( data.buffer == 0 ) {
    std::cout << "Memory allocation error ... quitting!\n";
    goto cleanup;
  }

  try {
    adc.startStream();
  }
  catch ( RtError& e ) {
    std::cout << '\n' << e.getMessage() << '\n' << std::endl;
    goto cleanup;
  }

  std::cout << "\nRecording for " << time << " seconds ... writing file
'record.raw' (buffer frames = " << bufferFrames << ")." << std::endl;
  while ( adc.isStreamRunning() ) {
    SLEEP( 100 ); // wake every 100 ms to check if we're done
  }

  // Now write the entire data to the file.
  fd = fopen( "record.raw", "wb" );
  fwrite( data.buffer, sizeof( MY_TYPE ), data.totalFrames * channels, fd );
  fclose( fd );

 cleanup:
  if ( adc.isStreamOpen() ) adc.closeStream();
  if ( data.buffer ) free( data.buffer );

  return 0;
}
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ccrma-mail.stanford.edu/pipermail/stk/attachments/20101224/5457a25a/attachment.html