Mercurial > hg > octave-lyh
annotate scripts/audio/record.m @ 13977:08ae07e40d4f
Only run uimenu tests if FLTK toolkit is available (Bug #34908)
* graphics_toolkit.m: Correct @deftypefn to @deftypefnx for Texinfo to build
* allchild.m: Eliminate unnecessary for loop. Only run test if FLTK toolkit
is available.
* findall.m, uimenu.m: Only run test if FLTK toolkit is available.
author | Rik <octave@nomad.inbox5.com> |
---|---|
date | Fri, 02 Dec 2011 14:48:45 -0800 |
parents | d0b799dafede |
children | 72c96de7a403 |
rev | line source |
---|---|
11523 | 1 ## Copyright (C) 1995-2011 John W. Eaton |
2313 | 2 ## |
3 ## This file is part of Octave. | |
4 ## | |
5 ## Octave is free software; you can redistribute it and/or modify it | |
6 ## under the terms of the GNU General Public License as published by | |
7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
8 ## your option) any later version. | |
2313 | 9 ## |
10 ## Octave is distributed in the hope that it will be useful, but | |
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 ## General Public License for more details. | |
14 ## | |
15 ## You should have received a copy of the GNU General Public License | |
7016 | 16 ## along with Octave; see the file COPYING. If not, see |
17 ## <http://www.gnu.org/licenses/>. | |
2303 | 18 |
3332 | 19 ## -*- texinfo -*- |
20 ## @deftypefn {Function File} {} record (@var{sec}, @var{sampling_rate}) | |
12575
d0b799dafede
Grammarcheck files for 3.4.1 release.
Rik <octave@nomad.inbox5.com>
parents:
11589
diff
changeset
|
21 ## Record @var{sec} seconds of audio input into the vector @var{x}. The |
3332 | 22 ## default value for @var{sampling_rate} is 8000 samples per second, or |
23 ## 8kHz. The program waits until the user types @key{RET} and then | |
24 ## immediately starts to record. | |
5642 | 25 ## @seealso{lin2mu, mu2lin, loadaudio, saveaudio, playaudio, setaudio} |
3332 | 26 ## @end deftypefn |
27 | |
2312 | 28 ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at> |
29 ## Created: 19 September 1994 | |
30 ## Adapted-By: jwe | |
1636 | 31 |
2312 | 32 function X = record (sec, sampling_rate) |
1636 | 33 |
34 if (nargin == 1) | |
35 sampling_rate = 8000; | |
36 elseif (nargin != 2) | |
6046 | 37 print_usage (); |
1636 | 38 endif |
39 | |
2458 | 40 unwind_protect |
41 | |
42 file = tmpnam (); | |
1636 | 43 |
2458 | 44 input ("Please hit ENTER and speak afterwards!\n", 1); |
1636 | 45 |
4469 | 46 cmd = sprintf ("dd if=/dev/dsp of=\"%s\" bs=%d count=%d", |
11589
b0084095098e
missing semicolons in script files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
47 file, sampling_rate, sec); |
2458 | 48 |
49 system (cmd); | |
1636 | 50 |
3167 | 51 num = fopen (file, "rb"); |
1636 | 52 |
2458 | 53 [Y, c] = fread (num, sampling_rate * sec, "uchar"); |
54 | |
55 fclose (num); | |
1636 | 56 |
2458 | 57 unwind_protect_cleanup |
1636 | 58 |
2458 | 59 unlink (file); |
1636 | 60 |
2458 | 61 end_unwind_protect |
1636 | 62 |
63 X = Y - 127; | |
64 | |
65 endfunction |