® Sametime Media Manager manages multiple audio and video streams in a meeting.
About this task
The Sametime Media Manager scans the meeting participants and locates the person currently speaking (transmitting audio packets). The Sametime Media Manager performs switching operations as different people speak during a meeting. When a meeting participant speaks, the Sametime Media Manager locks onto that client's audio stream and distributes that stream to all other clients in the meeting. When a participant stops speaking, the Sametime Media Manager waits for a brief period of time, and then begins scanning for the other active audio clients.
The video follows the audio. When the Sametime Media Manager switches to a new audio source (speaking person), the Sametime Media Manager through its connections to the clients, ensures that the icon indicating the current speaker is properly updated for all clients. After this update, the Sametime Media Manager sets the video source to the person currently speaking. It is important to ensure that the video does not switch too quickly. Rapid video switching reduces usability. You can control the time interval that must pass before the video switches to the new speaking person.
If the current speaker does not have video capabilities or has the video window paused, the Sametime Media Manager send's the next loudest speaker's video as the active speaker to all participants.
By default, the Sametime Media Manager can lock onto and broadcast a maximum of five audio streams at the same time. In a meeting, if five people speak at the same time, it is possible for all meeting participants to simultaneously hear five people speaking. The Sametime Media Manager designates the audio stream that has been transmitting the longest (generally, the person who started speaking first) as the primary audio stream. The source of the primary audio stream is also the source of the video stream. Audio and video services provided by the Sametime Media Manager have been tested and optimized for sessions with 20 participants. The actual number of participants will vary based on network and environmental conditions. The higher the number of switched audio streams, then the more bandwidth that is required.
In meetings, especially in large meetings, IBM
recommends that participants, who are not talking, mute their speakers to reduce noise.
Parent topic: Administering a Sametime Media Manager
- Log in to the Integrated Solutions Console.
- Click Sametime System Console -> Sametime Servers -> Sametime Media Manager.
- In the Sametime Media Managers list, click the deployment name of the Sametime Media Manager.
- Click the Configuration tab.
- Under Presence, type a number between 2 and 16 in the Number of switched audio streams field to change the number of simultaneous audio streams.
Note: The more switched audio streams, the more people are heard simultaneously in a meeting. Meetings could become quite noisy, so use caution when you increase this number.
- Under Set the time in milliseconds before switching to the next active speaker, select a number in Video switching wait time to control the time interval that must pass before the video switches to the new speaking person.
- Click OK.
- Restart the Sametime Media Manager.