Create a sound file containing a swept sine wave (ie a chirp). Usage : sndfile-generate-chirp [options] <sample rate> <length in seconds> <sound file> Options include: -from <start> Sweep start frequency in Hz (default 200Hz). -to <end> Sweep end frequency in Hz (default fs/2). -amp <value> Amplitude of generated sine (default 1.0). <sweep type> One of (default -log): -log logarithmic sweep -quad quadratic sweep -linear linear sweep The output file will contain floating point samples in the range [-1.0, 1.0]. The ouput file type is determined by the file name extension which should be one of 'wav', 'aifc', 'aif', 'aiff', 'au', 'caf' and 'w64'.

Create a sound file containing a swept sine wave (ie a chirp). Usage : sndfile-generate-chirp [options] <sample rate> <length in seconds> <sound file> Options include: -from <start> Sweep start frequency in Hz (default 200Hz). -to <end> Sweep end frequency in Hz (default fs/2). -amp <value> Amplitude of generated sine (default 1.0). <sweep type> One of (default -log): -log logarithmic sweep -quad quadratic sweep -linear linear sweep The output file will contain floating point samples in the range [-1.0, 1.0]. The ouput file type is determined by the file name extension which should be one of 'wav', 'aifc', 'aif', 'aiff', 'au', 'caf' and 'w64'.