Honest1,
You give but one example why you should leave recording to professionals and keep amateurs away.
You are completely correct that a recording using a microphone will record NOT just the acoutic instrument itself but ALSO the reverberation response due to the room. The biggest effect will be ceiling or floor (esp if floor is hardwood). Audio engineers play with microphone heights and surfaces to modify this reverb effect. Studios even buy large expensive panels for vocalists to sing next to and add interesting effects (these are called "microphone plates").
To record ONLY the instrument you would need to use an anechoic chamber...just as you describe. Only then would the playback be closest to the instrument sound - but even then......there are still other issues that are not worth going into here.
You give but one example why you should leave recording to professionals and keep amateurs away.
You are completely correct that a recording using a microphone will record NOT just the acoutic instrument itself but ALSO the reverberation response due to the room. The biggest effect will be ceiling or floor (esp if floor is hardwood). Audio engineers play with microphone heights and surfaces to modify this reverb effect. Studios even buy large expensive panels for vocalists to sing next to and add interesting effects (these are called "microphone plates").
To record ONLY the instrument you would need to use an anechoic chamber...just as you describe. Only then would the playback be closest to the instrument sound - but even then......there are still other issues that are not worth going into here.