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# auwrite

writes .au sound file

### Syntax

auwrite(y,aufile) auwrite(y,Fs,aufile) auwrite(y,Fs,bits,aufile) auwrite(y,Fs,bits,method,aufile)

### Arguments

- y
real vector or matrix with entries in [-1,1].

- aufile
string (The .au extension is appended if no extension is given)

- Fs
integer, frequency sampling in Hz.

- bits
integer, number of bits in the encoding.

- method
string ,

`'mu'`

(default) or`'linear'`

, encoding method.

### Description

Utility function to save `.au`

sound file.
`auwrite(y,aufile)`

writes a sound file specified by the
string aufile. The data should be arranged with one channel
per column. Amplitude values outside the range [-1,+1] are
ignored.
Supports multi-channel data for 8-bit mu-law, and 8, 16, 32, 64 bits linear formats.

`auwrite(y,Fs,aufile)`

specifies in `Fs`

the sample rate of the data
in Hertz.

`auwrite(y,Fs,bits,aufile)`

selects the number of bits in
the encoder. Allowable settings are bits in [8,16,32,64].
`auwrite(y,Fs,bits,method,aufile)`

allows selection of the
encoding method, which can be either 'mu' or 'linear'.
Note that bits must be 8 for 'mu' choice. The default method is 8-bits mu-law encoding.

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