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Is there a unit that can be used to block all audio frequencies apart from vocal tone /?
I need a power unit to allow only voice frequencies to be heard by the speaker after using a microphone to capture the original sound. There is a microphone used in a workshop cluttered and noisy so the speaker will play the audio Direct only allow the frequency of the voice / voice to be heard and not the noise of machines. Is there something like that exists?
You need to install a low pass and high pass filter. low-pass should be set at about 3 kHz high-pass must be set to 200Hz. this means that all signals above 200Hz pass through the high-pass and all signals of less than 3 KHz to pass through the low pass that gives you a band of 2800Hz. It may be too large for effective noise reduction in your case and you would have to narrowband. I heard that 200Hz-1200Hz is clear, but appears little muffled. Otherwise, you can create a filter that blocks only the frequency noise of the machine. You have to measure the frequencies that have the largest amplitude (Highest) that break away from machines. then you do frequencies which are on either side. This would mean 2 speakers and 2 sets of filters. One for the high side and one for the bottom of the band blocked. Electronic filters are really easy to do. They are a capacitor and resistor. The values โโof these determine the frequencies that are allowed to contiue along a circuit. You need to either create or buy one. hope this help, I do not have time to go further.
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