My plan is to e.g. there is a balanced microphone and say a phantom power supply and it would be connected with a balanced cable to a standard sound card jack. So e.g. one sign would be on the left, the reverse phase would be on the right. And there would be a program that would reverse one of the phases and perform the subtraction. All this by creating an extra tool that could be selected to be used for recording and streaming.
Forget the former! In essence, I need a software differential amplifier. Subtract the 2 channels on the same level at the same time! This will make it 1 normal channel.
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Joined 2003
Easily done with Audacity. Record stereo audio. Invert one channel, then mix stereo down to mono. You can expect next to no audio if the source is differential signal from a microphone.
Unfortunately, "real time" anything is impossible when using a computer and software. There is always some delay due to buffering and processing delays. The delay will at some frequency represent a phase shift that will create positive feedback (and other phase angles for other frequencies).
Even dedicated DSP hardware has a small but non-zero delay between input and output.
If you really need "real time" then you have to use analog circuitry.
Even dedicated DSP hardware has a small but non-zero delay between input and output.
If you really need "real time" then you have to use analog circuitry.
I mean real time that it can’t be noticed and can be used for normal live video streaming as well. It's not a complicated effect, just 1 subtraction. If you process only the minimum required sample length, maybe it could be solved.
Is that for the purpose of converting the symmetric signal to normal? You do not need that, you can solve this by wiring - https://annawiringdiagram.com/wp-co...lr-to-1-4-xlr-to-mono-jack-wiring-diagram.jpg
No. The goal is to make the signal transmission symmetrical without having to buy a sound card with a symmetrical input. So it subtracts the two signals from each other and quenches the noise like a differential amplifier.
Why not use a USB soundcard that supports a microphone connection direct? These are pretty common these days for home recording.
Try this
Copy: L=0.5*R-0.5*L
https://sourceforge.net/p/equalizerapo/wiki/Configuration reference/
Inverting channel:
https://sourceforge.net/p/equalizerapo/discussion/general/thread/6ad904e4/?limit=2
M
Copy: L=0.5*R-0.5*L
https://sourceforge.net/p/equalizerapo/wiki/Configuration reference/
Inverting channel:
https://sourceforge.net/p/equalizerapo/discussion/general/thread/6ad904e4/?limit=2
M
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