Data acquisition using sound card

  • How is a sound card used?

    A sound card is a computer component responsible for generating and recording audio.
    It enables users to connect analog speakers, headphones and microphones to their computer.
    Most modern computers have a built-in sound card in the motherboard..

  • What can a sound card be used for?

    A sound card is a computer component responsible for generating and recording audio.
    It enables users to connect analog speakers, headphones and microphones to their computer.
    Most modern computers have a built-in sound card in the motherboard..

MATLAB and Data Acquisition Toolbox support Windows® compatible sound cards that use the DirectSound driver. Use MATLAB as your single software environment 
Use MATLAB to perform the following tasks on Windows sound cards: Acquire data from multiple audio input channels; Generate audio data for multiple audio output 

Does a sound card provide a significant equalization?

As can be seen, there is no significant difference (this measurement exposes a minuscule 0.02 dB difference in gain between the channels of the sound card, but that difference is not altered by the device).
So clearly, the device does not provide any significant equalization.

,

How do I acquire audio data and generate audio signals?

Acquire multichannel audio data and generate signals with Windows ® sound cards Before you use audio channels, see Data Acquisition Toolbox Supported Hardware.
Acquire and generate audio signals using one or more device channels Set up a continuous audio acquisition using a microphone.
Generate audio signals using a 5.1 channel sound system.


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