# auread

## Purpose

Read µ-law encoded audio file.

## Synopsis

    Y = auread('filename')

## Description

`Y = auread('filename')` reads the audio file in `filename` and converts the data from µ-law encoded bytes to a signal in the range -1 <= `Y` <= 1.

`auread` reads the data from the specified file as 8-bit, unsigned character data. The high-order bit is a sign bit, where 1 represents positive data and 0 represents negative data. The remaining seven bits represent signal magnitude, and are inverted (1's complement).

## See Also

    auwrite

(c) Copyright 1994 by The MathWorks, Inc.