AudioMixers
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(Difference between revisions)
(Created page with '== Toolpack audio mixers == A mixer is used to mix the audio of multiple sources (call legs, playing audio file, tone generation...) === Typical usage of audio mixers === Audio …') |
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=== Joining audio source to a mixer === | === Joining audio source to a mixer === | ||
| − | There are | + | There are 2 ways to join a mixer: |
* Join as a listener only | * Join as a listener only | ||
| − | * Join as a talker | + | * Join as a talker |
| − | + | ||
The mixer has the following limits on the number of talkers: | The mixer has the following limits on the number of talkers: | ||
| − | * The mixer can have any number of talkers (up to maximum TMedia system capacity of 32,000 call legs) | + | * The mixer can have any number of talkers (up to maximum TMedia system capacity of about 32,000 call legs) |
* Among these talkers, up to 10 will be considered as "active" (the 10 from which audio was received the most recently) | * Among these talkers, up to 10 will be considered as "active" (the 10 from which audio was received the most recently) | ||
* Among these 10 active talkers, the audio from loudest N talkers will be mixed (other will be ignored) | * Among these 10 active talkers, the audio from loudest N talkers will be mixed (other will be ignored) | ||
The mixer has the following limits on the number of listeners: | The mixer has the following limits on the number of listeners: | ||
| − | * The mixer can have any number of listeners (up to maximum TMedia system capacity of 32,000 call legs) | + | * The mixer can have any number of listeners (up to maximum TMedia system capacity of about 32,000 call legs) |
Resource usage of talkers and listeners: | Resource usage of talkers and listeners: | ||
| Line 26: | Line 25: | ||
* All non-active talkers, plus all listeners all share one mixer slot (thus maximum 1 per conference) | * All non-active talkers, plus all listeners all share one mixer slot (thus maximum 1 per conference) | ||
* IVR (playing file, playing tone, recording file) use one mixer slot | * IVR (playing file, playing tone, recording file) use one mixer slot | ||
| − | The maximum "slots" that a mixer can use is thus 12. | + | The maximum "slots" that a mixer can use is thus 12 (even when it has up to about 32,000 non-active talkers or listeners) |
| + | |||
| + | Note: Recording or playing to individual call legs will not be done by the mixer itself, and will thus require separate DSP resources in addition to the mixer itself. | ||
| + | |||
| + | A Tmedia Unit has a density of about 512 mixer slots per DSP, and can have up to 4 DSPs. | ||
Revision as of 13:58, 17 January 2012
Toolpack audio mixers
A mixer is used to mix the audio of multiple sources (call legs, playing audio file, tone generation...)
Typical usage of audio mixers
Audio mixers can be used, among other things, to:
- Build conferences
- Play background music to a conversation
- Record both sides of the conversation into a single recorded file.
Joining audio source to a mixer
There are 2 ways to join a mixer:
- Join as a listener only
- Join as a talker
The mixer has the following limits on the number of talkers:
- The mixer can have any number of talkers (up to maximum TMedia system capacity of about 32,000 call legs)
- Among these talkers, up to 10 will be considered as "active" (the 10 from which audio was received the most recently)
- Among these 10 active talkers, the audio from loudest N talkers will be mixed (other will be ignored)
The mixer has the following limits on the number of listeners:
- The mixer can have any number of listeners (up to maximum TMedia system capacity of about 32,000 call legs)
Resource usage of talkers and listeners:
- An active talker uses one mixer slot (up to 10 per conference)
- All non-active talkers, plus all listeners all share one mixer slot (thus maximum 1 per conference)
- IVR (playing file, playing tone, recording file) use one mixer slot
The maximum "slots" that a mixer can use is thus 12 (even when it has up to about 32,000 non-active talkers or listeners)
Note: Recording or playing to individual call legs will not be done by the mixer itself, and will thus require separate DSP resources in addition to the mixer itself.
A Tmedia Unit has a density of about 512 mixer slots per DSP, and can have up to 4 DSPs.
