For sake of interest, there are some very well known standard techniques for making a stereo recording. The problem is there is not a single correct way to record. Many of you will know about these already, but FWIW:
1) Spaced omni mics - arguably the most pure form. It's used for some classical recordings. The major drawback is it doesn't sum well to mono.
2) ORTF - a pair of cardiod mics space roughly the width of a human head and splayed at an angle
3) Blumlein - stacked coincident ribbon mics (fig 8 pattern) at 90 degree angle.
4) mid-side - forward facing single cardioid mic with a fig 8 mic perpendicular to it to pick up the side information. Takes some processing.
5) X/Y - similar to Blumlein but with cardioids.
For pop recordings, any sort of combination of techniques can be used. For example a stereo recording of drums can be added to a bunch of mono tracks for ambiance, though these days most mainstream pop music is 99% synthetic.
1) Spaced omni mics - arguably the most pure form. It's used for some classical recordings. The major drawback is it doesn't sum well to mono.
2) ORTF - a pair of cardiod mics space roughly the width of a human head and splayed at an angle
3) Blumlein - stacked coincident ribbon mics (fig 8 pattern) at 90 degree angle.
4) mid-side - forward facing single cardioid mic with a fig 8 mic perpendicular to it to pick up the side information. Takes some processing.
5) X/Y - similar to Blumlein but with cardioids.
For pop recordings, any sort of combination of techniques can be used. For example a stereo recording of drums can be added to a bunch of mono tracks for ambiance, though these days most mainstream pop music is 99% synthetic.
Not all recordings do this but a decent live, classical recording or relay can convey a lot of the feeling of being in the concert hall. Too many hi-fi dems involve soloists with closely-miked guitars and the sort of finger-scraping you wouldn't hear in a real venue. It's passed off as "detail".
It also depends on what specifics you require. One of my wake-up calls was realising that a system I was using didn't approach the natural sound of a live classical event because it was severely volume limited. Switching to an active system with greatly increased headroom helped and provided a reference for future speakers. That particular system sounded right within a few minutes of hearing it.
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