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Audio capture and digitizing devices are used to receive and process analog audio signals from connected microphones.
To enter and digitize an audio signal, the servers, created in the Axxon PSIM™ software, use:
- Video capture cards;
- Standard soundcards;
- Multi-channel soundcards;
- IP-devices.
Video capture cards
Video capture cards, used as audio capture devices, support reception and digitization of audio signals. Video capture cards don’t support audio signal output to headphones and loudspeakers.
Video capture cards digitize audio signals in conjunction with processing and digitization of video signals. Audio and video signals are processed independently.
The facility to receive and digitize audio signals depends on the server hard- and software configuration, on the type of video capture cards and the key file parameters.
Standard soundcards, microphones, loudspeakers and headphones
Standard soundcards are used for audio capture and audio output devices. They receive and digitize audio signals, reconvert digitized audio signals and feed them to the loudspeakers and headphones.
Axxon PSIM™ software system supports the audio signal sample rate range, corresponding to the standard soundcard and restricted to a 48 kHz frequency.
Usually up to 2 microphones and 1 headphone are used with a standard soundcard.
Multichannel audio capture devices
Multichannel audio capture devices are PCI cards (for example, MidiMan Delta, Comart Hera, Olkha 9P) or outer hardware and software modules (for example, Echolot USB-32), used for digitization and processing of 2 or more audio signals. For the list and features of Axxon PSIM™ software compatible multichannel audio capture devices, see the Integration section on the site of AxxonSoft company: http://www.axxonsoft.com/products/axxon_enterprise/core_functionality/integration.php.
Multichannel audio capture devices reproduce sound and digitize audio signals in parallel, or sound is reproduced by the standard sound cards. The Audio signal sample rate range depends on the audio capture device type. The Axxon PSIM™ software system sample rate range, available to the installed card, is restricted to a 48 kHz maximum value.
IP-devices
The Axxon PSIM™ software system supports audio signals reception, digitization, processing and playback using audio capture IP-devices. IP-cameras and IP-servers’ built-in microphones or the external analog microphones, connected to IP-devices, may be used for receipt, digitization and processing of audio signals. Outer loudspeakers or headphones, connected to IP-servers may be IP-devices used for playback of audio signals. For the list of Axxon PSIM™ software compatible IP-devices for audio signals reception, digitization, processing and playback see the Integration section on the site of AxxonSoft company: http://www.axxonsoft.com/products/axxon_enterprise/core_functionality/integration.php.
The audio signal sample rate range depends on the IP-device type, which is used as the audio capture device. The sample rate range, available to the installed card, is restricted to a 48 kHz maximum value.
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