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########################################################################
##
## Copyright (C) 2016-2024 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## This file is part of Octave.
##
## Octave is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################
## -*- texinfo -*-
## @deftypefn {} {} sound (@var{y})
## @deftypefnx {} {} sound (@var{y}, @var{fs})
## @deftypefnx {} {} sound (@var{y}, @var{fs}, @var{nbits})
## Play audio data @var{y} at sample rate @var{fs} to the default audio
## device.
##
## The audio signal @var{y} can be a vector or a two-column array representing
## mono or stereo audio, respectively.
##
## If @var{fs} is not given, a default sample rate of 8000 samples per second
## is used.
##
## The optional argument @var{nbits} specifies the bit depth to play to the
## audio device and defaults to 8 bits.
##
## For more control over audio playback, use the @code{audioplayer} class.
## @seealso{soundsc, @audioplayer/audioplayer, record}
## @end deftypefn
function sound (y, fs, nbits)
if (nargin < 1)
print_usage ();
endif
if (nargin < 2 || isempty (fs))
fs = 8000;
elseif (! (isscalar (fs) && fs > 0))
error ("sound: sample rate FS must be a positive number");
endif
if (nargin < 3 || isempty (nbits))
nbits = 8;
elseif (! (isscalar (nbits) && (nbits == 8 || nbits == 16 || nbits == 24)))
error ("sound: bit depth NBITS must be 8, 16, or 24");
endif
play = audioplayer (y, fs, nbits);
playblocking (play);
endfunction
## Tests of sound must not actually play anything.
## Test input validation
%!error <Invalid call> sound ()
%!error <FS must be a positive number> sound (1, ones (2,2))
%!error <FS must be a positive number> sound (1, -1)
%!error <NBITS must be 8, 16, or 24> sound (1, [], 2)
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