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#1
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Omni for classical
Scott Dorsey has been the loudest voice I've heard extolling the virtues of
recording classical music with omni microphones. I was never a convert but for exceptional circumstances. Then I got a pair of DPA 4006's. I'm a convert. Even without a Jecklin, a pair of omnis spread about a foot apart above a wind ensemble concert in a good hall made a better recording than I have ever walked out of a hall with. Omnis capture everything, including the sound of the room. If the room sucks, find another microphone. If the balance isn't right, find another mic. If the concert sounds good in the 10th row, omni is for you. I was recording in an unfamiliar hall, but the HVAC noise seems significantly lower compared to my cardioids and hypercardioids. Can I attribute that to the mics? or is it just a room artifact? |
#2
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I double what Scott states.
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#3
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If the room sucks, find another microphone.
If the balance isn't right, find another mic. I would still say use the omnis just find a better location for the mics as they say in real estate, location is everything dale |
#4
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"JP Gerard" wrote in
: Well to start with you got some NICE omnis... And thank James Norman for that. I was the first to respond to his For Sale posting. Look and sound brand new. My only earlier experience was with multipattern Chinese condensers. Yes, there is a difference. I finally really know what "un-hyped" sounds like. Even my Schoeps aren't this smooth. |
#5
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"dale" wrote in
oups.com: If the room sucks, find another microphone. If the balance isn't right, find another mic. I would still say use the omnis just find a better location for the mics as they say in real estate, location is everything And omnis have more placement options. As there isn't a "backside" to speak of, it just has to be in the right spot, not in some particular direction. But there are still times when you want just "this" and not "that", and a hypercardioid or figure-8 is the only way to go. |
#6
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Carey Carlan wrote:
I was recording in an unfamiliar hall, but the HVAC noise seems significantly lower compared to my cardioids and hypercardioids. Can I attribute that to the mics? or is it just a room artifact? The mikes are now positioned closer to the source in order to get the same room sound, so they are now farther away from the noise sources. You will find with live concerts the audience noise is lower for the same reason. But also, because the low frequency corner on the omnis is lower than comparable cardioids, you often get more rumble just because it's able to reproduce what's at the mike better down there. The two effects balance one another out. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#7
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Carey Carlan wrote in
. 191: I was recording in an unfamiliar hall, but the HVAC noise seems significantly lower compared to my cardioids and hypercardioids. Can I attribute that to the mics? or is it just a room artifact? Follow up. The HVAC was not quieter, just lower. There was almost no HF content, but the LF content was tremendous as far down as my frequency display would go (3 Hz). I had to apply several passes of judicious noise reduction to remove it. I couldn't just chop it off because I had percussion and low winds way down there. |
#8
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Carey Carlan wrote:
"JP Gerard" wrote in Well to start with you got some NICE omnis... And thank James Norman for that. I was the first to respond to his For Sale posting. Look and sound brand new. My only earlier experience was with multipattern Chinese condensers. Yes, there is a difference. I finally really know what "un-hyped" sounds like. Even my Schoeps aren't this smooth. They will be if you get the omni capsules for them! --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#9
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carey - those 4006s are indeed very nice mics. glad you are enjoying
them. |
#10
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Carey Carlan wrote: Scott Dorsey has been the loudest voice I've heard extolling the virtues of recording classical music with omni microphones. I was never a convert but for exceptional circumstances. Then I got a pair of DPA 4006's. I'm a convert. Even without a Jecklin, a pair of omnis spread about a foot apart above a wind ensemble concert in a good hall made a better recording than I have ever walked out of a hall with. Omnis capture everything, including the sound of the room. If the room sucks, find another microphone. If the balance isn't right, find another mic. If the concert sounds good in the 10th row, omni is for you. I was recording in an unfamiliar hall, but the HVAC noise seems significantly lower compared to my cardioids and hypercardioids. Can I attribute that to the mics? or is it just a room artifact? Hey - I thought I was the one most loudly touting omnis for classical recording... I guess I don't post here often enough! g It's true, though, that omnis won't pick up wind or mechanical vibration nearly as much as will directional mics. However, if there is actual *acoustic* noise down in the LF area, omnis can sometimes pick it up more than directional mics. Omnis do have a "back side" though, so IMO placement is very critical. Since HFs are strongest on-axis (and for 1/2" mics, it's not a subtle difference), you can point them to overshoot things in the foreground (wiry-sounding first violin chair, etc.) or pick up the woodwinds better, etc. But below a few kHz, omnis are truly omni and this is one reason they are so great. The biggest difference is lack of proximity effect, and an even response to all types of sounds, where cardioids will emphasize percussive sounds (like from piano, xylophone, etc.) Enjoy those 4006s - they're great mics. Karl Winkler Lectrosonics, Inc. http://www.lectrsonics.com |
#11
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Carey Carlan wrote:
"dale" wrote in oups.com: If the room sucks, find another microphone. If the balance isn't right, find another mic. I would still say use the omnis just find a better location for the mics as they say in real estate, location is everything And omnis have more placement options. As there isn't a "backside" to speak of, it just has to be in the right spot, not in some particular direction. Depends on the omni. A larger-diameter omni like a 635-family mic definately has a back side. A 1/2" mic like a 4007 or ECM 8000 is pretty darn non-directional, at least until you start doing high frequency measurements with them. The 4006 is somewhere in-between. |
#12
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#13
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#15
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I found the AKG 460B with circuit fixes to beat the B+K 4003's for
neutrality. The B+K's have a subtle metalic overtone the mylar capsule doesn't. The Schoeps capsule is excellent, but the color of the electronics masks that. Most omni capsules are rather directional at high freqencies. This can be desirable in some situations, why the M-50's are popular. I found the 460 mated with the CK-22 side address omni capsule avoids this and is pure omni up to 20k. Although designed for measurment, it solves the HF directionality problem. Jim Williams Audio Upgrades |
#16
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wrote:
Most omni capsules are rather directional at high freqencies. This can be desirable in some situations, why the M-50's are popular. I found the 460 mated with the CK-22 side address omni capsule avoids this and is pure omni up to 20k. Although designed for measurment, it solves the HF directionality problem. How does sidemounting an omni cap change its directional/nondirectional properties? -- ha |
#17
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hank alrich wrote:
wrote: Most omni capsules are rather directional at high freqencies. This can be desirable in some situations, why the M-50's are popular. I found the 460 mated with the CK-22 side address omni capsule avoids this and is pure omni up to 20k. Although designed for measurment, it solves the HF directionality problem. How does sidemounting an omni cap change its directional/nondirectional properties? It depends on the grille. But the grille has a lot to do with the pattern at high frequency. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#18
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On 5/10/05 12:37 PM, in article
, "hank alrich" wrote: wrote: Most omni capsules are rather directional at high freqencies. This can be desirable in some situations, why the M-50's are popular. I found the 460 mated with the CK-22 side address omni capsule avoids this and is pure omni up to 20k. Although designed for measurment, it solves the HF directionality problem. How does sidemounting an omni cap change its directional/nondirectional properties? The Ck22 is an odd bird, inside the capsule is a diaphragm mounted pretty normally like any screw-on capsule- Facing forwards along the axis of the body, but above the diaphragm is mounted an inverted metal cone, point-towards-the-diaphragm, the base of which is attached to what otherwise would be the 'front' of the mic capsule thus making the 'front' a solid piece of metal (the BASE of the cone). Vents around the SIDE of the capsule allow sound in. It's all incorporated into a perfectly normal looking champagne-gold CK series capsule, until you notice the top of the mic is solid metal. |
#19
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One more follow up. Compared with directional microphones, don't forget to
set up MUCH closer to the group. |
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