So ... is that a DC motor thrown into a spring reverb module that I see here ? Speak of a weird way to achieve analog audio-rate modulation !! 😀 Not to mention the contact mike on the electric fan ...
The dc motor in the spring reverb is being sent a trigger making that trash can kick drum sound. On the fan I have an electromagnetic pickup being sent to a pitch shifting reverb on the ALM MFX. Got the electret microphone picking up the chimes going into the delay on the Koma Field Kit FX with the mix all the way up. Which is why a keen eye might notice a slight delay between the strike of the chime and the sound of it.
@@felix_ennui I had no idea that the current from a trigger signal was sufficient to drive a DC motor ! This is a surprise ! Would you happen to have an idea of the typical current intensity that can be drawn out of a CV output ? I have been searching for this information without success so far. I want to build a set of passive attenuverters for my Moog Sound Studio, but without knowing the output current (or the output impedance), I cannot determine what range of resistors I need for that. I guess I will have to do it by trial and error, otherwise.
@@felix_ennui As a side-note: I do not know which kind of protections are typically designed around CV outputs, but when driving a DC motor with a trigger signal, you may want to short the motor with a kickback diode. Otherwise, each time the motor stops, self-induction will send a reverse current into you CV output with the potential to fry something. Some machines will be more protected against that than others, but you probably do not want to discover empirically that your favourite synth was not protected against reverse current !
@@felix_ennui Then i assume they already protected the output with a diode in the core circuit. That’s good, but just be aware that it will not necessarily be true for any synth out there. These babies are expensive, you may want to look at a circuit diagram before trying the same thing with another machine. Plugging output in output on the other hand (the so-called “output to output patching technique”) seems to be pretty universally safe, from what I have seen. Keep up the exploration !
So ... is that a DC motor thrown into a spring reverb module that I see here ? Speak of a weird way to achieve analog audio-rate modulation !! 😀
Not to mention the contact mike on the electric fan ...
The dc motor in the spring reverb is being sent a trigger making that trash can kick drum sound. On the fan I have an electromagnetic pickup being sent to a pitch shifting reverb on the ALM MFX. Got the electret microphone picking up the chimes going into the delay on the Koma Field Kit FX with the mix all the way up. Which is why a keen eye might notice a slight delay between the strike of the chime and the sound of it.
@@felix_ennui I had no idea that the current from a trigger signal was sufficient to drive a DC motor ! This is a surprise !
Would you happen to have an idea of the typical current intensity that can be drawn out of a CV output ? I have been searching for this information without success so far. I want to build a set of passive attenuverters for my Moog Sound Studio, but without knowing the output current (or the output impedance), I cannot determine what range of resistors I need for that.
I guess I will have to do it by trial and error, otherwise.
@@felix_ennui As a side-note:
I do not know which kind of protections are typically designed around CV outputs, but when driving a DC motor with a trigger signal, you may want to short the motor with a kickback diode. Otherwise, each time the motor stops, self-induction will send a reverse current into you CV output with the potential to fry something. Some machines will be more protected against that than others, but you probably do not want to discover empirically that your favourite synth was not protected against reverse current !
Thank for the tip! The manual had some examples of sending the DC motor a trigger signal so I assumed it was fine.
@@felix_ennui Then i assume they already protected the output with a diode in the core circuit. That’s good, but just be aware that it will not necessarily be true for any synth out there.
These babies are expensive, you may want to look at a circuit diagram before trying the same thing with another machine.
Plugging output in output on the other hand (the so-called “output to output patching technique”) seems to be pretty universally safe, from what I have seen.
Keep up the exploration !