Get Audio-signal

[ctaty3]

Hello!

Guys, please tell me how in the AMC to determine the presence of a sound signal in the system? Well, that is I have a task to determine whether the music is playing in the system or not?

[BioHazard]

No way to detect directly from an internal system source, using just plain Lua (that I'm aware of). Notoriously difficult and specific to a system's audio hardware, too. You can however, detect for an audio signal indirectly, via line input (such as via a laptop's internal microphone). The attached demo shows how - but has a couple of shortcomings:

• It can't distinguish whether the signal is coming from an internal or external source. It treats both as one in the same.
• Is dependent on a line-input actually being present on the target system, otherwise it will return an error.

Not exactly what you requested, I know. But is the closest solution I know of.
See if it's of any use.



You can adjust the signal-detection's sensitivity level via the nAmbient variable in Page On Show (currently set at '3'). Lower the value for greater sensitivity (and vice-versa)

Nb. Memory Plugin (v2.0.0.0) is required: here

[ctaty3]

Thank you very much! Even such an example is very useful.