Hello (new here).
I have been thinking about ways to interact with a virtual audio signal in a physical way, the standard method being a simple midi controller FSR or similar with a piezo for input signals. However, this doesn't give the surface a realistic feel.
While experimenting with a speaker and piezo attached to it I realised i could physically affect the sound and then feed it back in to the digital system at some point (with some delay). This got me thinking of the fact that a speaker can be used as a mic and I then wondered if it is possible to do both at once, removing the need for the piezo and giving a more accurate result.
Basically I want to return the signal from the DAC (after being, say, low passed by a hand on the speaker) back into a sound card's ADC but I can't seem to get my head around the requirements for a circuit like this. Would you just add the input in series before the 'return' of the speaker to the output?
Has anyone else experimented with including analogue signal processors within a digital chain or feedback loop?
I have been thinking about ways to interact with a virtual audio signal in a physical way, the standard method being a simple midi controller FSR or similar with a piezo for input signals. However, this doesn't give the surface a realistic feel.
While experimenting with a speaker and piezo attached to it I realised i could physically affect the sound and then feed it back in to the digital system at some point (with some delay). This got me thinking of the fact that a speaker can be used as a mic and I then wondered if it is possible to do both at once, removing the need for the piezo and giving a more accurate result.
Basically I want to return the signal from the DAC (after being, say, low passed by a hand on the speaker) back into a sound card's ADC but I can't seem to get my head around the requirements for a circuit like this. Would you just add the input in series before the 'return' of the speaker to the output?
Has anyone else experimented with including analogue signal processors within a digital chain or feedback loop?