SM7 Test

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Michael Jones

Michael Jones

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OK. I recorded my 7'-2" grand piano with a pair of SM7's. (please note: SM Seven) Not my first choice for grand piano, but I thought I would try to get a really good sound from them by using placement techniques, rather than mic selection.

I found the bass response these mics to be, well, exagerated, for lack of a better word.
So on the mic above the bass strings, I placed it off axis to the strings. The lid was in the full up position.

My room is carpeted on the floor, and has auralux foam (I know, I know) on the walls. To make up for some of the sonic discrepencies of the room, I cut bass response by 2db at 150Hz. There's a foam divider between the two mics (a technique I learned from Harvey) that aids in separation for stereo recording.

Any thoughts?
(Its a short sample.)

http://artists2.iuma.com/site-bin/streammp3.m3u?401262
 
Sounds a little muffled. Not real sharp and clear. The fix ? Im not sure cause I've never miced a piano.
 
Hi Michael,

I wish I could be more detailed but I'd like more to listen to. I'd need to hear a chromatic scale, some varied articulation, the entire dynamic spectrum inclusive of some ppp to fff complete with crescendos and dinimuendos, a couple of subito piano(s) and sfz(s), also less damper pedal.

Do you purposely have your instrument tuned to A436 or so for a slightly darker tone?

Nice feeling in your rubato! Being a classical and jazz pianist/ composer, I would love to hear more of you. Send me a URL.

peace.
Ralph Funaro
 
flat-9 said:
Hi Michael,

I wish I could be more detailed but I'd like more to listen to. I'd need to hear a chromatic scale, some varied articulation, the entire dynamic spectrum inclusive of some ppp to fff complete with crescendos and dinimuendos, a couple of subito piano(s) and sfz(s), also less damper pedal.
Well, I still have the mics set up, so I'll lay something down.

Do you purposely have your instrument tuned to A436 or so for a slightly darker tone?[/B]

No, but you have a damn good ear, because that's exactly where it is!
I have this piano tuned at least 4 times a year, more if I know its going to be recorded. It was tuned about 3 months ago, for its mid-winter settling in. Its now spring, and its warmed up considerably, so its due.

Nice feeling in your rubato! Being a classical and jazz pianist/ composer, I would love to hear more of you. Send me a URL.

peace.
Ralph Funaro [/B]

I'm pretty proud of this one: (December's Mist)
http://artists2.iuma.com/site-bin/streammp3.m3u?190193

I like this one too: (Tenderly)
http://artists2.iuma.com/site-bin/streammp3.m3u?131663

This was kind of an experiment: (Lakeside Rainfall)
http://artists2.iuma.com/site-bin/streammp3.m3u?204548

If they don't stream well for you, my web-site is at the bottom of my post.

Thanks for the input! I'll be in touch.
 
goose80 said:
Sounds silky smooth and ambient, nice.
Thanks goose!
I'll try to get some more tunes up here. I've been away from the clinic for a while......
 
It's a good 'dark' sound. That's probably because of the small, dead room. The new room may liven it up a bit. I would like a little more detail in the low end. Getting it tuned may tighten it up enough. I tend to prefer a little more of an airy piano sound.

Cool tunes. I couldn't get Tenderly to play for some reason. Nice textures but I'd like to hear some more melodic or rythmic hooks. Nice stuff.
 
Michael Jones said:
No, but you have a damn good ear, because that's exactly where it is!
I have this piano tuned at least 4 times a year, more if I know its going to be recorded. It was tuned about 3 months ago, for its mid-winter settling in. Its now spring, and its warmed up considerably, so its due.

Michael,

Do you have an internal humidifier in it? Although the piano I use to record on is digital, all af my acoustic pianos at the teaching studio have had them for 5 years now and I find them extremely cost effective at maintaining A440 with ONE tuning a year as long as you watch the water level blinking light!

Once, I let it go for two weeks ( neglect monitoring H20) while on vacation on one of the Yamahas during the dead of winter here in New England, and it dropped out so inconsistently across the board, it would have been perfect for Charlie Chan silent accompaniment!! :o

I plan to listen to your work by week's end and will PM you by this time next week.

Peace,
Ralph
 
I could be real blunt and say there is a fair amount of noise floor poking its head up and like someones got a lead foot on the sustain pedal....

I personally like a wider stereo spread if the pno is going to be the dominant item. But,...that's MY opinion...useless as it usually is.

so...why is your pno tuned flat? You never answered that one. The whole pno couldn't have "slipped" down that much and maintained a tuning within itself, eh?

Admittedly I was kinda shocked at the poor quality clip you presented. I feel kinda like an asshole telling you that, but for some reason, I was expecting quite a bit more. Maybe because of past readings of your mic selections/knowledge, and such a nice piano you own. SM7?? that's a strange choice now...isn't it? kinda like slapping on some RE20's eh?? ..and you were supprised with a low end boost on those (sm7) mics?? How about some AKG 451's instead? ..and ditch the foam separation stuff. I really wouldn't think that is nec. and actually probably detrimental. I'd use the ole 3:1 rule instead. You don't like your TM103's?:(

oh yeah..I may be waaay off base, but listening to your clip, I'd say your mics are too close to worry about room acoustics. Seems like it sounded pretty closed mic'd to me...at least within a couple of feet or less. And not like the SM7 are omni's or even close.
 
I listened to two other songs...your Dec. mist and the Lakeside Rainfall. The music is great..especially on the Rainfall one. Still a little heavy on the sustain pedal, but very nice. That song covered up your noise floor pretty good, but the other one, it was pretty evident again. I know pianos are EXTREMELY hard to mic and easy to get a lot of noise in the track, but it is still pretty much, it seems to me. Also, ..am I hearing noise reduction artifacts on the Dec mist?... sounded like I heard the "swirling/chirping" sound usually associated with computer noise reduction programs. maybe it was the mp3 conversion...?:(
 
TexRoadkill said:
It's a good 'dark' sound. That's probably because of the small, dead room. The new room may liven it up a bit. I would like a little more detail in the low end.
Yeah, detail in the low end has always been difficult to accomplish on this piano. I think I got there with the SM81's and Harvey's help. They sound real good on this piano. This piano has ALWAYS had that warm, dark tone to it. I think that's indicitive of Boston's; just as brightness is indicitive of Yamaha's.

flat-9 said:
Do you have an internal humidifier in it? Although the piano I use to record on is digital, all af my acoustic pianos at the teaching studio have had them for 5 years now and I find them extremely cost effective at maintaining A440 with ONE tuning a year as long as you watch the water level blinking light!
No, I don't. All the tuners and dealers I have spoken with don't recommend them. What we really need here are DE-humidifiers.
I look forward to your comments though.

mixmkr said:
I could be real blunt and say there is a fair amount of noise floor poking its head up and like someones got a lead foot on the sustain pedal....

I personally like a wider stereo spread if the pno is going to be the dominant item. But,...that's MY opinion...useless as it usually is.!
Its OK to be blunt.
;)
And yeah, I got a little heavy on the sustain. It was a quick and dirty test, and I should have put more emphasis on the playing. I wanted to hear a lot of sustain to help judge the mics though. I thought about giving a wider spread too, but I didn't want it to sound.... un-natural?

mixmkr said:
so...why is your pno tuned flat? You never answered that one. The whole pno couldn't have "slipped" down that much and maintained a tuning within itself, eh?
Its not tuned flat. Its not uncommon for large grands to "slip" a few cycles between tunings, especially when the weather changes. When the tuning does slip, it usually does so across the entire range. Owning a concert grand is like owning a Jag. You just expect a higher maintanance schedule.

mixmkr said:
Admittedly I was kinda shocked at the poor quality clip you presented. I feel kinda like an asshole telling you that, but for some reason, I was expecting quite a bit more. Maybe because of past readings of your mic selections/knowledge, and such a nice piano you own. SM7?? that's a strange choice now...isn't it? kinda like slapping on some RE20's eh?? ..and you were supprised with a low end boost on those (sm7) mics?? How about some AKG 451's instead? ..and ditch the foam separation stuff. I really wouldn't think that is nec. and actually probably detrimental. I'd use the ole 3:1 rule instead. You don't like your TM103's?
Ha! Yeah, you're right, the recording really isn't up to snuff. But this was more of an experiment. I keep hearing people say that mic placement is more important than mic selection. And I have a pretty good aresenal of mics to pick from, but I thought if I could take a pair of mics that are completely out of character for this instrument, and get a good sound from those by using placement alone.... Well, you get the picture, I'm just honing.

I'm not sure what you mean by noise artifacts? I didn't use any noise reduction s/w. It may just be the mp3.
That's one thing that really bothers me. I can record at 24/96, listen to it in the studio, over my monitors, and have this really nice, lush sound, then export to mp3 and have all sorts of stuff drop out.

Thanks everyone, for all the comments.
I'm sure once I get into the new studio, I'll have to re-learn how to record this beast, but it'll be fun!
 
I like the dark sound, and your playing.

Music is a bit too tender & ambient for my taste - oops...that argument isn't important on this board. Excuse me.

But the sound fits your musical style, which is good.

Flat-9, do you have perfect pitch or did you check it? Just curious... ;)
 
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