WAVREAD Legacy MATLAB function to write .WAV file (Y,Fs,N,FILENAME)
wavwrite writes data to 8-, 16-, 24-, and 32-bit .wav files.
Usage:
wavwrite(y,'filename') writes the data stored in the variable y to a WAVE file called filename.
The data has a sample rate of 8000 Hz and is assumed to be 16-bit.
Each column of the data represents a separate channel.
Therefore, stereo data should be specified as a matrix with two columns.
Amplitude values outside the range [-1,+1] are clipped prior to writing.
wavwrite(y,Fs,'filename') writes the data stored in the variable y to a WAVE file called filename.
The data has a sample rate of Fs Hz and is assumed to be 16-bit.
Amplitude values outside the range [-1,+1] are clipped prior to writing.
wavwrite(y,Fs,N,'filename') writes the data stored in the variable y to a WAVE file called filename.
The data has a sample rate of Fs Hz and is N-bit, where N is 8, 16, 24, or 32.
For N < 32, amplitude values outside the range [-1,+1] are clipped.
Note: 8-, 16-, and 24-bit files are type 1 integer pulse code modulation (PCM). 32-bit files are written as type 3 normalized floating point.0001 function wavwrite(y,fs,n,fn) 0002 %WAVREAD Legacy MATLAB function to write .WAV file (Y,Fs,N,FILENAME) 0003 % wavwrite writes data to 8-, 16-, 24-, and 32-bit .wav files. 0004 % 0005 % Usage: 0006 % wavwrite(y,'filename') writes the data stored in the variable y to a WAVE file called filename. 0007 % The data has a sample rate of 8000 Hz and is assumed to be 16-bit. 0008 % Each column of the data represents a separate channel. 0009 % Therefore, stereo data should be specified as a matrix with two columns. 0010 % Amplitude values outside the range [-1,+1] are clipped prior to writing. 0011 % wavwrite(y,Fs,'filename') writes the data stored in the variable y to a WAVE file called filename. 0012 % The data has a sample rate of Fs Hz and is assumed to be 16-bit. 0013 % Amplitude values outside the range [-1,+1] are clipped prior to writing. 0014 % wavwrite(y,Fs,N,'filename') writes the data stored in the variable y to a WAVE file called filename. 0015 % The data has a sample rate of Fs Hz and is N-bit, where N is 8, 16, 24, or 32. 0016 % For N < 32, amplitude values outside the range [-1,+1] are clipped. 0017 % Note: 8-, 16-, and 24-bit files are type 1 integer pulse code modulation (PCM). 32-bit files are written as type 3 normalized floating point. 0018 0019 % Copyright (C) Mike Brookes 2018 0020 % Version: $Id: wavwrite.m 10865 2018-09-21 17:22:45Z dmb $ 0021 % 0022 % VOICEBOX is a MATLAB toolbox for speech processing. 0023 % Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html 0024 % 0025 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 0026 % This program is free software; you can redistribute it and/or modify 0027 % it under the terms of the GNU General Public License as published by 0028 % the Free Software Foundation; either version 2 of the License, or 0029 % (at your option) any later version. 0030 % 0031 % This program is distributed in the hope that it will be useful, 0032 % but WITHOUT ANY WARRANTY; without even the implied warranty of 0033 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0034 % GNU General Public License for more details. 0035 % 0036 % You can obtain a copy of the GNU General Public License from 0037 % http://www.gnu.org/copyleft/gpl.html or by writing to 0038 % Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA. 0039 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 0040 if nargin<3 0041 v_writewav(y,8000,fs,'p'); % default is 8kHz, 16 bit 0042 elseif nargin<4 0043 v_writewav(y,fs,n,'p'); % default is 16 bit 0044 else 0045 switch n 0046 case 8 0047 v_writewav(y,fs,fn,'8p'); % write 8 bit fixed-point data 0048 case 16 0049 v_writewav(y,fs,fn,'p'); % default is 16 bit 0050 case 24 0051 v_writewav(y,fs,fn,'24p'); % write 24 bit fixed-point data 0052 case 32 0053 v_writewav(y,fs,fn,'v'); % write 32 bit floating-point data 0054 otherwise 0055 error('invalid precision: %d',n); 0056 end 0057 end