16AXIS 214 PTZ - Video and Audio Streams

Audio Stream Types

The audio stream types for audio are:

•G.711 - International standard for encoding wired-telephone audio. Uses PCM samples to compress audio where higher signal values are compressed more than lower values. In Axis products, this sets the coding type to μ-law 64 kbit/s.

•G.726 - Uses PCM samples to code the difference between samples (ADPCM). Reduces bandwidth without losing too much useful audio. In Axis products, this sets the coded bit rate to 24 or 32 kbit/s.

All stream types are ITU-T standards and operate on frequencies of up to 4 kHz.

MPEG-4 protocols and communication methods

To deliver live streaming video over IP networks, various combinations of transport protocols and broadcast methods are employed.

•RTP (Realtime Transport Protocol) is a protocol that allows programs to manage the real-time transmission of multimedia data, via unicast or multicast.

•RTSP (Real Time Streaming Protocol) serves as a control protocol, to negotiate which transport protocol to use for the stream. RTSP is thus used by a viewing client to start a unicast session, see below.

•UDP (User Datagram Protocol) is a communications protocol that offers limited service for exchanging data in a network that uses the Internet Protocol (IP). UDP is an alterna- tive to the Transmission Control Protocol (TCP). The advantage of UDP is that it is not required to deliver all data and may drop network packets when there is e.g. network congestion. This is suitable for live video, as there is no point in re-transmitting old information that will not be displayed anyway.

•Unicasting is communication between a single sender and a single receiver over a net- work. This means that the video stream goes independently to each user, and each user gets their own stream. A benefit of unicasting is that if one stream fails, it only affects one user.

•Multicast is bandwidth-conserving technology that reduces bandwidth usage by simul- taneously delivering a single stream of information to multiple network users. This technology is used primarily on delimited networks (intranets), as each user needs an uninterrupted data flow and should not rely on network routers.

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Axis Communications AXIS 214 PTZ user manual Audio Stream Types, MPEG-4 protocols and communication methods
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AXIS 214 PTZ specifications

Axis Communications, a pioneer in network video solutions, has made significant strides with the release of its AXIS 214 PTZ camera. This robust camera is designed for professional applications requiring remote pan, tilt, and zoom capabilities, providing excellent versatility and control in surveillance scenarios.

One of the standout features of the AXIS 214 PTZ is its ability to deliver high-quality video with a resolution of up to 720x480 pixels. This ensures that users are able to capture clear and detailed footage, which is essential for effective monitoring and incident identification. The camera also has a wide dynamic range, allowing it to perform well in varying lighting conditions, which can often be a challenge in outdoor settings.

The PTZ function allows users to control the camera's movement remotely, making it possible to monitor large areas with just one device. It can pan a full 360 degrees and has a tilt range that enables it to cover a significant vertical span. Coupled with a 10x optical zoom, users can focus in on specific details, whether it be a facial recognition task, reading a license plate, or just monitoring activity in a specific area.

In terms of connectivity, the AXIS 214 PTZ is equipped with Power over Ethernet (PoE), enabling both power and data to be transmitted over a single cable. This simplifies installation and can reduce installation costs, as the need for separate power sources is eliminated.

Axis’s proprietary technologies enhance the AXIS 214 PTZ's functionality. The camera features Axis’ Zipstream technology, which optimizes bandwidth and storage consumption without compromising video quality. This is particularly beneficial for users managing multiple cameras across large facilities, as it helps to efficiently store and retrieve crucial footage.

Moreover, the camera is designed with weather resistance in mind. With an IP66 rating, it can withstand tough environmental conditions, making it suitable for outdoor use. This durability means users can rely on it in various weather scenarios, from rain to extreme temperatures.

In summary, the Axis Communications AXIS 214 PTZ is a feature-rich surveillance solution that combines high-quality imaging, remote control capabilities, efficient power management, and resilient construction. Its advanced functionalities make it an ideal choice for organizations looking to enhance security and monitoring in diverse settings.
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