Code covered by the BSD License  

Highlights from
audioread - unified audio file input function

5.0
5.0 | 1 rating Rate this file 68 Downloads (last 30 days) File Size: 904 KB File ID: #32894 Version: 1.2
image thumbnail

audioread - unified audio file input function

by

Dan Ellis (view profile)

 

14 Sep 2011 (Updated )

audioread provides a single, unified function for reading audio files in wav, mp3, aac, flac...

| Watch this File

File Information
Description

audioread provides a single, unified function for reading audio files in a range of different file formats, including wav, mp3, aac, flac, AIFF, etc. In most cases, access is actually provided by external binaries, but this is hidden within audioread (and its subfunctions). The idea is to make your code independent of the kind of audio files used as input.

In addition, audioread provides support for common modifications performed during sound input, namely resampling (changing the sampling rate), casting multi-channel signals to mono, and loading only a limited time range of the sound. Care has been taken to ensure that short subregions of very large soundfiles can be read with the minimum of memory overhead (for instance, without having to load in the entire soundfile at any time.

Acknowledgements

Mp3read And Mp3write, M4aread Read Mpeg4 (Aac Or M4 A) Compressed Audio Files, Flacwrite Write Out A Flac Encoded Audio File Using Flac, and M4awrite Write M4a Format Audio File inspired this file.

MATLAB release MATLAB 7.11 (R2010b)
Other requirements External binaries for mpg123, faad, flac, must be installed as described on the page. Support for NIST SPHERE is via ReadSound.mex, download full package from http://labrosa.ee.columbia.edu/matlab/audioread/
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (3)
02 Dec 2015 Dan Ellis

Dan Ellis (view profile)

Sorry, I didn't realize that resample() was only available when the Signal Processing Toolbox is installed.

Comment only
02 Dec 2015 Antonio Palma

If even the demo file is not operating, I don't know what kind of rate can ever be expressed...
:'(

??? Undefined function or method 'resample' for input arguments of type 'double'.

Error in ==> wavread_downsamp at 72
dd = resample(dd,1,DS);

Error in ==> audioread at 81
[D,SR] = wavread_downsamp(FN,N,FORCEMONO,ds);

Error in ==> demo_audioread at 26
[d,sr] = audioread('piano.wav');

Comment only
14 May 2013 JY

JY (view profile)

 
Updates
27 Apr 2012 1.1

Better handling of errors in external programs

30 Apr 2012 1.2

FIxed bug reading flac files with downsampling that would truncate 2nd half of file.

Contact us