auread (MATLAB Function Reference)

Read NeXT/SUN (.au) sound file

Syntax

y = auread('aufile')
[y,Fs,bits] = auread('aufile')
[...] = auread('aufile',N)
[...] = auread('aufile',[N1,N2])
siz = auread('aufile','size')

Description

Supports multi-channel data in the following formats:

8-bit mu-law
8-, 16-, and 32-bit linear
floating-point

y = auread('aufile')

loads a sound file specified by the string aufile, returning the sampled data in y. The .au extension is appended if no extension is given. Amplitude values are in the range [-1,+1].

[y,Fs,bits] = auread('aufile')

returns the sample rate (Fs) in Hertz and the number of bits per sample (bits) used to encode the data in the file.

[...] = auread('aufile',N)

returns only the first N samples from each channel in the file.

[...] = auread('aufile',[N1 N2])

returns only samples N1 through N2 from each channel in the file.

siz = auread('aufile','size')

returns the size of the audio data contained in the file in place of the actual audio data, returning the vector siz = [samples channels].