Multichannel Audio Input and Output

Acquire multichannel audio data and generate signals with Windows^® sound cards

Before you use audio channels, see Data Acquisition Toolbox Supported Hardware.

Functions

`addinput`	Add input channel to device interface
`addoutput`	Add output channel to device interface
`removechannel`	Remove channel from device interface

Topics

Audio Input and Output
Acquire and generate audio signals using one or more device channels

Featured Examples

Acquire Continuous Audio Data

Set up a continuous audio acquisition using a microphone.

Open Script

Generate Audio Signals

Generate audio signals using a 5.1 channel sound system.

Open Script

Generating Multichannel Audio

Set up continuous audio generation using multiple audio channels. The signal, a sample of Handel's "Hallelujah Chorus", is broken up into contiguous segments and played back in two parts. The first part of the example plays each segment on a single speaker and a sub-woofer. The second part plays each segment on a different set of speakers (a choir of voices).

Open Script

Create an Echometer Using Audio Measurements

Create an echometer sonar using audio data acquisition and signal processing, which can measure distance by determining the time of flight of a sound pulse reflected off of a surface.

Open Live Script

Create an App for Analog Triggered Data Acquisition

Create an analog-triggered data acquisition app by using Data Acquisition Toolbox™ and App Designer.

Open App

Analog Triggered Data Acquisition Using Stateflow Charts

Create an analog-triggered data acquisition app by using Stateflow®, Data Acquisition Toolbox™, and App Designer.

Open App

Create an App for Live Data Acquisition

Create an app which acquires data from a DAQ device or sound card, displays a live data view, and logs data to a MAT-file.

Open App