Documentation for Axxon PSIM 1.0.0-1.0.1.

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Every IP device used for audio input is registered in Axxon PSIM™ by creating and configuring the Audio card object. The Audio card objects are created in the Hardware tab under the Computer object. When creating the Audio card objects in the Board drop-down list, select the value corresponding to the designation of IP audio device followed by its IP-address. This value is available in the drop-down list only if the Video capture device object corresponding to the IP-device is created and configured (see Configuring video acquisition from IP devices section). Also the Audio card and Video Capture device objects corresponding to the one IP-device should be created on the basis of the same Computer object.

When the Audio card is configured restart Axxon PSIM™. Otherwise, the audio subsystem (particularly, microphones) can not be configured.

Microphones embedded into or connected to IP devices are registered in Axxon PSIM™ by creating the Microphone objects under the Audio card object. Under one Audio card object there are the Microphone objects in amount corresponding to the amount of audio input channels and restrictions applied by a license key. Corresponding segment of hardware branch when IP device and one microphone are registered is shown in the figure.

When the Microphone object is created, select the channel number of connecting the microphone to audio input device in the Channel dropdown list.

Moreover, driver parameters can be set in order to acquire audio from IP device. The list of available parameters depends on the device in use and it is shown in the Driver parameters table on the settings panel of the Microphone object.

For instance, audio digitization rate (Send rate) can be set like this. The value of the Digitization parameter set on the settings panel of the parent Audio card object is ignored. Find details on how to select the codec and digitization rate in Axxon PSIM in Configuring the digitization devices for audio signals section in Administrator's Guide.

If the video signal comes delayed or advanced, and the sound goes ahead or behind of it, i.e. the audio goes ahead or behind of the video, set the Audio delay parameter accordingly to eliminate the lag. The value range is -10000 to 10000.