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## -*- texinfo -*-
## @deftypefn  {} {} record (@var{sec})
## @deftypefnx {} {} record (@var{sec}, @var{fs})
## Record @var{sec} seconds of audio from the system's default audio input at
## a sampling rate of 8000 samples per second.
##
## If the optional argument @var{fs} is given, it specifies the sampling rate
## for recording.
##
## For more control over audio recording, use the @code{audiorecorder} class.
## @seealso{sound, soundsc}
## @end deftypefn

function x = record (sec, fs = 8000)

  if (nargin < 1)
    print_usage ();
  endif

  if (! (isscalar (sec) && sec >= 0))
    error ("record: recording duration SEC must be a non-negative number");
  endif

  if (! (isscalar (fs) && fs > 0))
    error ("record: sample rate FS must be a positive number");
  endif

  x = [];

  if (sec > 0)

    rec = audiorecorder (fs, 16, 1);

    recordblocking (rec, sec);

    x = getaudiodata (rec);

  endif

endfunction


## Tests of record must not actually record anything.
%!assert (isempty (record (0)))

## Test input validation
%!error <SEC must be a non-negative number> record (ones (2,2))
%!error <SEC must be a non-negative number> record (-1)
%!error <FS must be a positive number> record (1, ones (2,2))
%!error <FS must be a positive number> record (1, -1)