How to send voltage to GPIO pins when sound is heard on virtual sound device??

Projects General Guidance
1

Hi there;

I'm working on a project that requires 3 to 5 volts of voltage to be sent to one of the GPIO pins when sound is heard on a virtual sound card when sound is heard on that virtual device (as sound is not always present).

All tutorials I've researched demonstrate how to do this using a sound sensor module but not a virtual sound card.

I need something that detects sound on that virtual card/device in Windows, and then activates 3-5 volts to a GPIO pin (using Latte Panda which has Windows with integrated Arduino).

Any assistance or guidance would be much appreciated

Thanks in advanced.

2

Link to this ‘virtual sound card’ ?

3

By virtual card, I refer to a virtual audio cable by VB-Audio.

The concept is that I have a few different hardware components come into the device by a couple of physical USB audio cards, these cards are then "bundled" into one single virtual audio cable.

The idea is that when this virtual audio cable receives a signal, it "sends" 3 or 5v of power out one of the GPIO pins in order to activate something that needs to be triggered when sound is heard on that cable.

I know it's possible to achieve, I just need a kick start in the right direction, as mentioned my previous searches have only yielded results for activating something based on sound heard from an actual microphone (ie, a clap lamp), I need this but not hearing a physical mic, but rather trigger power when sound heard from sound device.

4

I think I know what you’re saying.

Can you draw a clear sketch of how your hardware bits fit together with USB , i/o pins etc.

If you want the Arduino to act as a USB host for the VB-Audio device - that may be a bit harder than simply triggering the Arduino with I/o pin events from the device.
(BTW which VB-audio device are you useing?)

5

I've diagrammed the basic schematic of the project, image attached.

The audio out's on the audio deices (1 & 2) feed into two separate USB sound cards on the Latte Panda, this is then combined into a single audio channel using Voicemeeter's "Banana" software.

The audio out then goes to a set of speakers, what is required is 3 or 5 volts of power to triggered on a GPIO pin when sound is heard from that combined sound device (the virtual audio cable)

diagram_.png
diagram_.png969×605 29.3 KB

6

Bump!.

Hi all, just wondering if anyone has any ideas to assist me in getting in the right direction for this project?, see the attached diagram.

I have a basic understanding of programming, and with that I'm sure there would be something out there that can detect sound on a sound device (ie, speakers from the Windows Sounds) and then send voltage to a pin when sound is heard?.

A general guide or direction would be good.
I've done some research and found some inbuilt functions like tone(), that however is to generate a sound, not listen and act as a trigger.

Thanks,

7

I can see where you’re going with this, but what you really need is inside the LattePanda software.
If you have the Banana source code - thats where you’re going to have to identify the triggers to fire your event.
I know nothing about Panda, but if you try a forum for that platform, you may find someone that knows more about the internal architectures and software.

As this has nothing to do with Arduinos I doubt there’s going to be much help here unless you build a parallel system just to detect & trigger as needed. Seems like a waste since the Panda could easily do what you want, if you had the right tools.

good luck.