Hello all,
Just having a think. Is it possible to convert a standard light contoller that runs of the speaker signal to use and internal mic instead. If so how and how long would it take to do.
Full Version: lighting controller internal mic
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If the internal mic is auto-level adjusting, what is your reason for change?
An internal mic (if its level adjusting), saves a bit of cabling, and does the same job, unless you've got a specific problem, or task in mind.
An internal mic (if its level adjusting), saves a bit of cabling, and does the same job, unless you've got a specific problem, or task in mind.
If the controller uses speaker level signals and you want to convert to internal mic, then you will need to amplify the internal mic level to speaker level. There are plently of amplification modules (pcb kits) available from hobby shops, plus it would need a power supply.
I've thought about doing this mod to my standard 4 hannel lighting controller, however space is very tight inside the box, with no room to add an additional power supply.
Does you lighting controller have any room inside?
If you are confident with electronic hardware it would be fairly easy and quick to do. Be very careful as lighting controllers have mains present on their pcbs.
Good luck!
I'm sure someone out there has done exactly this!
I've thought about doing this mod to my standard 4 hannel lighting controller, however space is very tight inside the box, with no room to add an additional power supply.
Does you lighting controller have any room inside?
If you are confident with electronic hardware it would be fairly easy and quick to do. Be very careful as lighting controllers have mains present on their pcbs.
Good luck!
I'm sure someone out there has done exactly this!
If you decide to add one of these modules, then beware with some of the more basics types of controller, which use a resistor and capacitor array to drop the mains voltage to that used on the logic circuitry - instead of the more conventional transformer.
Often the voltage drop has been configured by values of the dropper resistor itself based on the current the circuitry draws, and by adding an extra load to the circuit (ie pre amp module) could screw up the voltage drop and cause erratic or no operation.
Also bear in mind that the speaker input of a controller expects to see a speaker output (often 5 - 60v AC) so the output of a pre-amplifier may not be powerful enough to give a true beat chase effect. Which means you may have to change some of the components on the actual controller PCB.
With controllers with built in mics starting from around £50 or less and 4ch uncased pcb modules even cheaper, is it really worth the hassle?.
Often the voltage drop has been configured by values of the dropper resistor itself based on the current the circuitry draws, and by adding an extra load to the circuit (ie pre amp module) could screw up the voltage drop and cause erratic or no operation.
Also bear in mind that the speaker input of a controller expects to see a speaker output (often 5 - 60v AC) so the output of a pre-amplifier may not be powerful enough to give a true beat chase effect. Which means you may have to change some of the components on the actual controller PCB.
With controllers with built in mics starting from around £50 or less and 4ch uncased pcb modules even cheaper, is it really worth the hassle?.
I agree with Chris, Why bother???? 
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