Audio signals sample rate settings

The signal sample rate affects the quality of the audio signal and audio recording size. The higher the audio signal sample rate, the higher the signal quality and, hence, the efficiency of real-time and post-event analysis. When the audio signal sample rate increases, the size of the audio stream, transmitted by the network to Remote Workplaces and recorded to the disk, increases. These factors should be considered while choosing the sample rate of the audio signals.

The audio signal sample rate range depends on the audio capture device type. In INTELLECT™ software the upper threshold value of the sample rate range is 48 kHz.

By default, the audio signals sample rate is set to the minimum value. The sample rate is set for each audio capture device individually and covers any microphone, connected to it. Different sample rate settings for different microphones, connected to the same audio capture device, are unavailable.

To change the audio signal sample rate, follow the steps:

1. Go to the Hardware tab in the System Settings dialog box.
2. Select the relevant Audio Card object, created before, on the Hardware tab in the objects tree. The Settings panel of the selected object appears in the right part of the Hardware tab.
   
3. From the Sample rate list select the required sample rate of the audio signals.
4. Click the Apply button.

Audio signals sample rate settings for the audio card are completed.