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Imaging and the first violin(s)

If there’s one gremlin in my listening for decades, it has been a certain instability in the image in certain circumstances. I listen to a lot of chamber music, and I’ve noticed that the first violin’s place in the image can get less defined, particularly when the instrument is playing fortissimo. I’ve also noticed it in orchestral music, and sometimes in different ranges of piano recordings - moving from left to right.

I wonder if it is my setup - I’m along the long wall of the room, and while there is lots of space on either side of the speakers, it is not exactly symmetrical. However, I just moved last year, and the shorter and harder side switched from right to left, yet I get the same thing. Three different sets of speakers have exhibited this, and I’ve noticed it auditioning music in dealer showrooms as well (btw, don’t all those speakers standing around play havoc with near term reflections??). I haven’t done enough controlled experimentation, but I do think toe-in ameliorates it a little, but not all together.

I wonder sometimes whether the violins are able to, essentially, cut into the right-aimed microphone at certain levels. Or, I suppose, it could be a frequency-based imbalance in my own right and left ear hearing.

Anybody else notice this sort of thing?
ahofer
lowrider57's avatar
lowrider57
5,393 posts
 
On second listen, there’s no doubt that the violin is at full gain in both speakers.
My guess is they are using omni-directional mic’s which have a wide pickup patten. This, combined with the mixing of the performance to fill the soundstage would be my explanation.

I can’t explain why you hear this effect on other string quartets, except that you need to focus the image by adding some absorbion or diffusion on the wall behind the speakers.

ahofer OP
225 posts
 
@gs5556  yes, I attend live chamber music about once every two weeks, and every month or so my wife plays with friends in our home (she is a violist).  I have a Steinway "M" which was in my living room for 28 yrs until last year, and I went to Music School for several semesters while getting my bachelor's elsewhere. Concert halls do have their vagaries, as I suggest above, but this seems to be a stereo reproduction thing  
ahofer OP
225 posts
 
@lowrider57 I suspect this mic bleed is fairly common. It is fair to say that the chamber music I have on my server is older recordings like this, which may be a factor. Right now I’m listening to a 2009 Guarnieri recording of the Mendelssohn opus 13 [oops it's a remastering] that is pretty solid, even in the more strident passages of the final movement.

I’ve always loved that movement of the Ravel, and I love how dynamic that recording is on a good system.
lowrider57's avatar
lowrider57
5,393 posts
 
It really is a fantastic recording. But to be clear, it's not mic bleed. The purpose of an omni-directional mic is to pick up sound from all directions, 360°. This is minimal mic'ing and it's intended to sound more realistic by picking up ambience and more than one instrument. It's basic music recording. Much better than modern close-mic and muti-mic techniques.


ahofer OP
225 posts
 
Just listening to the Orpheus Quartet  playing a Bargiel String Quartet.  

https://www.amazon.com/Bargiel-String-Quartets-Nos-Octet/dp/B07KLGPDD6

Try track 4.  I think it's a reflection in the venue, but higher/louder passages also deliver violin in the right channel.
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