Security Camera User Manual

AXIS 241QA/AXIS 241SA - Video and audio streams

Other MPEG-4 clients

Although it may be possible to use other clients to view the MPEG-4 stream, it is not

guaranteed to work in all cases. For some other clients, such as QuickTime™ the Video

Object Type must be set to Simple. It may also be necessary to adjust the advanced

MPEG-4 settings.

To access the video stream from e.g. QuickTime™

the following path can be used:

rtsp://<ip>/mpeg4/#/media.amp

This path is for all supported methods, and the client will

negotiate with the AXIS

241QA/AXIS 241SA to determine exactly which transport protocol to use.

Notes:

• <ip> = IP address.

• # = video source number or the quad stream. This is set to 1 if omitted.

Audio transmission methods

The audio stream can be accessed in the

Live View page when viewing either Motion JPEG

or MPEG-4.

Using Motion JPEG

The basic transmission method of audio used in conjunction with

Motion JPEG video

streaming is transmission over HTTP. The video and audio streams are not synchronized

when using Motion JPEG so the streams may be slightly out of sync. The latency in any

stream should be low, but this will depend on the network infrastructure.

Using MPEG-4

When using MPEG-4, audio is streamed using

the same protocol as the video stream.

When audio is transmitted using MPEG-4, the

Axis video server sends synchronization

information along with the streams to the client performing the synchronization.

Note:

Audio is streamed from the client to the server over HTTP when using Motion JPEG and MPEG-4.

Accessing the audio streams

In addition to accessing audio in the Live View page using AMC, audio from the AXIS

241QA/AXIS 241SA can also be accessed in the following ways:

AXIS VAPIX API

You can read about accessing audio for the

other protocols through the VAPIX® API at

www.axis.com/techsup

QuickTime/Windows Media Player

It is possible to use QuickTime and Windows Media P

layer to listen to the audio stream

using the same methods to access video streams.

Java Applet

The Java applet supports simplex audio.