At your risk.
If correctly remembered Stereo FM transmition involves sending to the frequency modulated oscillator or exciter the following signal in frequency domain:
1 normal mono ie Mid signal of max bandwidth say 20Hz to 15KHz.
2 the L-R signal ie Side signal as sidebands with centre or carier frequency 38KHz.
In time domain this involved adding to the Mid signal an amplitude modulated carrier of 38KHz by the Side signal.
So what would be easier than assembling a couple of musicians in non reflective surroundings. Placing a Mid Side (stereo) microphone or mic technique and creating an encoder that utilizes directly M and S rather than creating as in the particular mic case it already exists.
But who needs stereo anyway?
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