The Black Hole......

Scott,

Frank Sinatra preferred a Bruel and Kjaer capsule for his vocals. Measurement microphones are also used as a specialty microphone in many studios.

Sinatra used mainly U48's as most of his recordings were done at Capitol
and apparently they only had U48's, which are virtually identical to U47.

Large diaphragm condenser->vacuum tube->transformer. Lots of character.

http://www.coutant.org/u47/sinatra.mp3

Sounds pretty good to me. :)

Finally I take it by you mentioning ribbon microphones you do understand that there are many specialty microphones that have extended high frequency response.

Ribbons are rolled off. Older RCA types very rolled off. The new Rode ribbon
is much less so.

The most popular microphone in use today is the Shure SM58. Ever use one or even look at the performance data?

'58's have a large presence peak which cuts through live. They share same
capsule as '57 but different body / grille. '57's used for lot's of things in
studio but most often snare where the peak will work for you.
Also '57 often used on electric gtr cabs if aggressive sound is the ticket.

I heard that Sure were selling something like 2 million / year.

TCD
 
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A lot of musical instruments are not mic'ed at all. They come Direct from the guitar pickup or line out of a keyboard/synth etc. All instruments can be synthesizer effects sounds and a lot is done that way. What is the recording BW limit on sythn virtual instruments?

THx-RNMarsh
 
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TNT

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Joined 2003
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Listening to the CQ Sun Rings ...

- How is this "classical"... modern I would call it, "art music" maybe?
- It sounds quite "nice"... maybe, but I don't think it has anything to do with what we (migth be) discussing here. I mean, capacitors, Fs, phase, reality reproduction etc etc. The whole thing is just fabricated or at least processed - so not HiFi.

I wonder what the selection criteria are? But I don't care that much because most things nowadays is diluted and commercialised to a point that is get shallow and boring. I hope there is a way back for humanity to something sincere and real.

What mics where used wouldn't matter squat.

//
 
www.hifisonix.com
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A lot of musical instruments are not mic'ed at all. They come Direct from the guitar pickup or line out of a keyboard/synth etc. All instruments can be synthesizer effects sounds and a lot is done that way. What is the recording BW limit on sythn virtual instruments?



THx-RNMarsh

Yes - my son does this it’s called ‘direct in’ (duh). They especially like doing it with bass guitar because you go around all the room/cab resonances.
 
For the technical interested, I have tried to make an equivalent circuit diagram as seen from the PA for the ESL63.
Since I have no info's on the audio transformers, this is without them.
There is also no level dependency for the LF part.

Hans

CirDia.jpg
 
Further to my sensitivity investigation for the ESL63 to mains supply, I can report that the Varistor(s) in the Bias supply circuit do a reasonable good job in keeping the Bias voltage under control.
When going from 225V mains to 110V mains, a drop of 6.2dB, Bias only goes down by 3.7dB.

When increasing the volume control by 4dB, one gets the same SPL curve again as with 225Volt.
The abs. max volume will be most likely 4dB lower with the lower mains supply.

Hans
 
the Grammy's have lots of problems, least of all their awards show.

I would suggest the Oscars for TV awards show evaluation. Much better (and very complex) chain of events to make it come off with good audio. The orchestra is down the street in another hall btw, no visual limitations on setup. Its all live, with the backup running to switch to at a moments notice.

Cheers
Alan
 
I understand the requirement for a BW capable of resolving consecutive transients, what I don't get is how this translates into a requirement for a faster sample rate which is what he suggests?

Not sure if I understand your question, but if you want to raise the bandwidth which way could that work without raising the sample rate as well ( because of the Nyquist limit)?
 
Bill, you are just making trouble. We have been using wideband B&K 1/2" mikes for almost 50 years. Many dozens and probably hundreds of recordings were made by Crystal Clear Records, starting in the 70's and all through the 80's using the same B&K mikes for classical, pop, jazz and just about everything else. Of course this was not digital, but later a number of recordings were made by the same company on CD's (unfortunately) with the same microphones. Today, there is no reason why these mikes would not work well for more advanced digital recording. Are they boring? YES! They do not have a resonance in the upper mid-range, how awful! Are they accurate, YES! Are they limited in their versatility? YES, as they are just omni (the ones referred to here). They will feedback if used with live performances, unless used differentially.
There are many 'in between' mic's that have some extended bandwidth, like Schoeps, etc. Let us move on.
 
Transient, by nature, *have* to be higher bandwidth. What's the Fourier transform of a step function? (Or better yet, a unit impulse/delta function)? So they have to be low-passed to fit the appropriate sampling bandwidth or you're gonna have some aliasing to deal with.