Video routers and related methods with integrated audio mixing and processing
Video routing may include integrated audio mixing, audio processing, or both. An audio subsystem that is integrated with a video router, for example, may receive and mix router input audio signals to provide mixed audio signals, and route the mixed audio signals to router outputs as router output audio signals. Regarding audio processing, input audio signals that include router input audio signals that are received by the video router may be routed as output audio signals. The output audio signals include router output audio signals to be output from the video router. Respective ones of the output audio signals are processed to provide respective processed output audio signals. The input audio signals for the routing also include the processed output audio signals.
1 . A video router comprising:
a video crosspoint switch to receive router input video signals received by the video router and to route the router input video signals as router video output signals to be output from the video router;
an audio crosspoint switch to receive input audio signals comprising router input audio signals received by the video router and to route the input audio signals as output audio signals comprising router output audio signals to be output from the video router;
a processing subsystem to provide a plurality of processing paths to receive and process respective ones of the output audio signals from the audio crosspoint switch and to generate respective processed output audio signals, the input audio signals of the audio crosspoint switch further comprising the processed output audio signals of the processing paths.
2 . The video router of claim 1 , wherein the router input audio signals comprise an embedded audio signal embedded with one of the router input video signals.
3 . The video router of claim 2 , further comprising:
an audio demultiplexer, coupled to the audio crosspoint switch, to extract the embedded audio signal from the one of the router input video signals.
4 . The video router of claim 1 , wherein the router output audio signals comprise an audio signal to be embedded with one of the router output video signals.
5 . The video router of claim 4 , further comprising:
an audio multiplexer, coupled to the audio crosspoint switch, to embed the audio signal with the one of the router output video signals.
6 . The video router of claim 1 , wherein the processing paths comprise a processing path to receive one of the output audio signals from the audio crosspoint switch, to apply multiple processing operations to the one of the output audio signals to generate respective processed audio signals, and to provide the processed audio signals to the audio crosspoint switch.
7 . The video router of claim 1 , wherein the processing paths comprise a processing path to receive one of the output audio signals from the audio crosspoint switch, and to selectively apply any of multiple processing operations to the one of the output audio signals.
8 . The video router of claim 1 , wherein the processing subsystem is configurable to provide processing paths to apply multiple processing operations to output audio signals from the audio crosspoint switch in respective different orders.
9 . The video router of claim 1 , wherein the audio crosspoint switch is configurable to route one of the processed output audio signals from one of the processing paths to another one of the processing paths for further processing.
10 . The video router of claim 1 , further comprising:
an audio mixer, coupled to the processing subsystem, to receive the respective processed output audio signals and to provide to the audio crosspoint switch mixed output audio signals based on the respective processed output audio signals, the input audio signals of the audio crosspoint switch further comprising the mixed output audio signals.
11 . A method comprising:
receiving router input video signals that are received by a video router;
routing the router input video signals as router video output signals to be output from the video router;
receiving input audio signals comprising router input audio signals that are received by the video router;
routing the input audio signals as output audio signals comprising router output audio signals to be output from the video router;
processing respective ones of the output audio signals to provide respective processed output audio signals, the input audio signals for the routing further comprising the processed output audio signals.
12 . The method of claim 11 , wherein the router input audio signals comprise an embedded audio signal embedded with one of the router input video signals.
13 . The method of claim 12 , further comprising:
extracting the embedded audio signal from the one of the router input video signals.
14 . The method of claim 11 , wherein the router output audio signals comprise an audio signal to be embedded with one of the router output video signals.
15 . The method of claim 14 , further comprising:
embedding the audio signal with the one of the router output video signals.
16 . The method of claim 11 , wherein the processing comprises applying multiple processing operations to one of the output audio signals to generate a plurality of processed audio signals based on the one of the output audio signals, the input audio signals for the routing further comprising the plurality of processed audio signals based on the one of the output audio signals.
17 . The method of claim 11 , wherein the processing comprises selectively applying any of multiple processing operations to one of the output audio signals.
18 . The method of claim 11 , wherein the processing is configurable to apply multiple processing operations to the respective ones of the output audio signals in respective different orders.
19 . The method of claim 11 , wherein the routing of the input audio signals is configurable to route one of the processed output audio signals for further processing.
20 . The method of claim 11 , further comprising: mixing the respective processed output audio signals to provide mixed output audio signals based on the respective processed output audio signals, the input audio signals for the routing further comprising the mixed output audio signals.
21 . A non-transitory processor-readable medium storing instructions which, when executed by a processor, cause the processor to perform a method, the method comprising:
receiving router input video signals that are received by a video router;
routing the router input video signals as router video output signals to be output from the video router;
receiving input audio signals comprising router input audio signals that are received by the video router;
routing the input audio signals as output audio signals comprising router output audio signals to be output from the video router;
processing respective ones of the output audio signals to provide respective processed output audio signals, the input audio signals for the routing further comprising the processed output audio signals.