Mercurial > octave-antonio

annotate scripts/audio/@audiorecorder/getaudiodata.m @ 20170:af2b7695f1c4 draft default tip @

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gallery.m: clean and vectorize part of qmult. * scripts/special-matrix/gallery.m: make qmult() follow Octave guidelines, vectorize last for loop in qmult().
author Antonio Pino Robles <data.script93@gmail.com>
date Thu, 28 May 2015 18:32:47 +0200
parents 4197fc428c7d
children 7503499a252b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19697
4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents: 19571
diff changeset
1 ## Copyright (C) 2013-2015 Vytautas Jančauskas
19500
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
2 ##
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
3 ## This file is part of Octave.
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
4 ##
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
5 ## Octave is free software; you can redistribute it and/or modify it
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
6 ## under the terms of the GNU General Public License as published by
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
7 ## the Free Software Foundation; either version 3 of the License, or (at
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
8 ## your option) any later version.
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
9 ##
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
10 ## Octave is distributed in the hope that it will be useful, but
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
13 ## General Public License for more details.
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
14 ##
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
15 ## You should have received a copy of the GNU General Public License
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
16 ## along with Octave; see the file COPYING. If not, see
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
17 ## <http://www.gnu.org/licenses/>.
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
18
19476
e1f98e402a7e New files - @audiorecorder and @audioplayer classes
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
19 ## -*- texinfo -*-
19571
72304a4e010a Use Octave coding conventions for documentation of audio functions.
Rik <rik@octave.org>
parents: 19523
diff changeset
20 ## @deftypefn {Function File} {@var{data} =} getaudiodata (@var{recorder})
19506
fdb8a62ef17a fix docstring style in .m files
John W. Eaton <jwe@octave.org>
parents: 19505
diff changeset
21 ## @deftypefnx {Function File} {@var{data} =} getaudiodata (@var{recorder}, @var{datatype})
fdb8a62ef17a fix docstring style in .m files
John W. Eaton <jwe@octave.org>
parents: 19505
diff changeset
22 ## Return recorder audio data as a matrix with values between -1.0 and 1.0
19505
ce02743b6f2a Fix texinfo docstring syntax for all audio functions
Mike Miller <mtmiller@ieee.org>
parents: 19503
diff changeset
23 ## and with as many columns as there are channels in the recorder.
19506
fdb8a62ef17a fix docstring style in .m files
John W. Eaton <jwe@octave.org>
parents: 19505
diff changeset
24 ## Given the optional argument @var{datatype}, convert the recorded data
fdb8a62ef17a fix docstring style in .m files
John W. Eaton <jwe@octave.org>
parents: 19505
diff changeset
25 ## to the specified type, which may be one of @qcode{"double"},
fdb8a62ef17a fix docstring style in .m files
John W. Eaton <jwe@octave.org>
parents: 19505
diff changeset
26 ## @qcode{"single"}, @qcode{"int16"}, @qcode{"int8"} or @qcode{"uint8"}.
19476
e1f98e402a7e New files - @audiorecorder and @audioplayer classes
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
27 ## @end deftypefn
e1f98e402a7e New files - @audiorecorder and @audioplayer classes
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
28
19503
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
29 function data = getaudiodata (varargin)
19523
5802ea7037d4 style fixes for audioplayer and audiorecorder classes
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
30
19503
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
31 if (nargin < 1 || nargin > 2)
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
32 print_usage ();
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
33 endif
19523
5802ea7037d4 style fixes for audioplayer and audiorecorder classes
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
34
19503
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
35 recorder = varargin{1};
19523
5802ea7037d4 style fixes for audioplayer and audiorecorder classes
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
36
19503
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
37 if (nargin == 1)
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
38 data = __recorder_getaudiodata__ (struct (recorder).recorder);
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
39 else
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
40 data = __recorder_getaudiodata__ (struct (recorder).recorder);
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
41 type = varargin{2};
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
42 switch (type)
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
43 case "int16"
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
44 data = int16 (data * (2.0 ^ 15));
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
45 case "int8"
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
46 data = int8 (data * (2.0 ^ 7));
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
47 case "uint8"
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
48 data = uint8 ((data + 1.0) * 0.5 * (2.0 ^ 8 - 1));
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
49 endswitch
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
50 endif
19523
5802ea7037d4 style fixes for audioplayer and audiorecorder classes
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
51
19507
dac3191a5301 style fixes for audioplayer and audiorecorder .m files
John W. Eaton <jwe@octave.org>
parents: 19506
diff changeset
52 if (get (recorder, "NumberOfChannels") == 2)
19503
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
53 data = data';
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
54 else
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
55 data = data(1,:)';
36a26a131209 Apply Octave coding style to audio project additions
Mike Miller <mtmiller@ieee.org>
parents: 19500
diff changeset
56 endif
19523
5802ea7037d4 style fixes for audioplayer and audiorecorder classes
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
57
19500
8bb399569393 Add Octave copyright header block to audio project files
Mike Miller <mtmiller@ieee.org>
parents: 19497
diff changeset
58 endfunction