LISTSERV mailing list manager LISTSERV 16.0

Help for ARSCLIST Archives


ARSCLIST Archives

ARSCLIST Archives


[email protected]


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ARSCLIST Home

ARSCLIST Home

ARSCLIST  December 2016

ARSCLIST December 2016

Subject:

Re: Setting azimuth from program - a caution

From:

Marcos Sueiro Bal <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Mon, 5 Dec 2016 13:16:54 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (1 lines)

This is an interesting point, Richard and Gary.

A trick I learned from Danny Sbardella is to adjust azimuth for maximum output of  the bias tone played at half speed.

Cheers,

Marcos

Marcos Sueiro Bal
Senior Archivist, New York Public Radio
646 829 4063

-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Gary A. Galo
Sent: Sunday, December 04, 2016 10:48 AM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Setting azimuth from program - a caution

Hi Richard,

I am also an ORTF fan. By the early 1980s I had hung Schoeps MSTC-5 ORTF Stereo Microphones in both of our concert halls, and during a renovation of one of them in the late 1990s I was able to add an MSTC-64 to my arsenal, always having one as a backup. The ORFT system has good mono compatibility, and works well under a wide variety of circumstances, which is important in a busy school where you're cranking out concert recordings every day and don't have time to spend two hours fiddling with microphone placement. 

One observation using the RTA on the DEQ 2596 - sometime the azimuth adjustment makes very little difference in the top band, but the two or three bands below 20k show a peak when the azimuth is right. I guess it just depend on the exact spacing of the microphones when the recording was made. 

Best,
Gary

____________________________

Gary Galo
Audio Engineer Emeritus
The Crane School of Music
SUNY at Potsdam, NY 13676

"Great art presupposes the alert mind of the educated listener."
Arnold Schoenberg

"A true artist doesn't want to be admired, he wants to be believed."
Igor Markevitch

-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Richard L. Hess
Sent: Saturday, December 03, 2016 9:42 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Setting azimuth from program - a caution

Hi, Gary,

Thank you for reinforcing my point about the widespread nature of the spaced mic recordings and for the tip about the Behringer RTA. In many halls, I've seen them far apart, typically ten feet or so. Often the mics are angled so their axis hits the stage. I guess I placed them that far apart as well early on, but brought them closer together (about six
feet) later.

For years after I got stuck with a difficult-to-cut organ master, I used ORTF spacing starting in 1978. These were AKG C-451s usually with CK-1 cardioid capsules. I stopped hanging mics at that time after buying a 15-foot PIC stand.

In my more recent incarnation of a recording engineer I'm using omnis spaced about 0.3 to 0.36 m apart. In this case, I am using DPA 4006TLs with UA0777 nosecones. Still with the same PIC stand. BTW, I just sold my Sound Devices 722 and joined the ranks of Zoom F8 owners. In my limited testing (and that of others) there seems to be no difference between the Zoom and the 722 and 744. I've not heard of comparisons against the 788T.

Cheers,

Richard




On 12/3/2016 17:48, Gary A. Galo wrote:
> Richard & Karl,
>
> That's what I do. I have a Behringer DEQ 2496 that I use strictly for the metering. Crane made a lot of stereo recordings from the 60s through the mid-70s with two spaced microphones. I most cases, I can adjust the azimuth for maximum high-frequency level on the Behringer's RTA. I've had a few tapes where there's very little difference, but most of the time it works. The Behringer's peak-reading level meters are also great for machine alignment. The bar-graph display gives both peak and RMS indications, along with a digital readout for both with 0.1dB resolution. When I got it years ago I checked it on the bench to make sure that it was accurate up to 20k and found it to be spot on with my test equipment. Whatever anyone may think of the EQ functions on this device (I've never used them) or any of their other products, the DEQ 2496 is worth the $350 US just for the metering and RTA.
>
> Best,
> Gary
>
> ____________________________
>
> Gary Galo
> Audio Engineer Emeritus
> The Crane School of Music
> SUNY at Potsdam, NY 13676
>
> "Great art presupposes the alert mind of the educated listener."
> Arnold Schoenberg
>
> "A true artist doesn't want to be admired, he wants to be believed."
> Igor Markevitch
>
> -----Original Message-----
> From: Association for Recorded Sound Discussion List 
> [mailto:[log in to unmask]] On Behalf Of Karl E. Fitzke
> Sent: Saturday, December 03, 2016 5:31 PM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] Setting azimuth from program - a caution
>
> Richard,
>
>
> Great point to bring up!  You are talking about being mislead by a lissajous pattern (phase scope) or phase torch under these circumstances, right?
>
>
> Instead the best we can do is to fall back solely on our ears and live spectrogram, trying to establish maximum high frequency response, yes?
>
>
> -Karl
>
>
>
> Karl Fitzke
> Audio/Visual Specialist
> 214 Olin Library
> Ithaca, NY 14853
>
> 607-255-5521
> [log in to unmask]
> ________________________________
> From: Association for Recorded Sound Discussion List 
> <[log in to unmask]> on behalf of Richard L. Hess 
> <[log in to unmask]>
> Sent: Saturday, December 3, 2016 2:44:16 PM
> To: [log in to unmask]
> Subject: [ARSCLIST] Setting azimuth from program - a caution
>
> I have been digitizing a batch of tapes for a university music program's archives. Most were made in a the several campus performance spaces, and from the sound of it and experience, the preponderance of these recordings were made with spaced hanging cardioid microphones. While stereo mics were also widely used, these sound like spaced mics.
>
> Anyway...none of the tapes had tones and from time to time there is a tape with an offset solo instrument. Remembering that we're looking for fractions of a degree accuracy in adjusting azimuth playback, when we see two separated mics, all bets are off.
>
> With the speed of sound being about 1100 feet per second, we can see how moving a mic less than a foot is the length of a complete cycle at 1 kHz.
>
> So, this type of recording is almost impossible to accurately adjust.
> While full ensembles work well with the stripchart in StereoTool, a solo instrument or voice can show a huge azimuth error which is really an artifact of microphone placement relative to the source.
>
> Cheers,
>
> Richard
>
>
> --
> Richard L. Hess                   email: [log in to unmask]
> Aurora, Ontario, Canada                             647 479 2800
> http://www.richardhess.com/tape/contact.htm
> Quality tape transfers -- even from hard-to-play tapes.
>
-- 
Richard L. Hess                   email: [log in to unmask]
Aurora, Ontario, Canada                             647 479 2800
http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

March 2024
February 2024
January 2024
December 2023
November 2023
October 2023
September 2023
August 2023
July 2023
June 2023
May 2023
April 2023
March 2023
February 2023
January 2023
December 2022
November 2022
October 2022
September 2022
August 2022
July 2022
June 2022
May 2022
April 2022
March 2022
February 2022
January 2022
December 2021
November 2021
October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003

ATOM RSS1 RSS2



LISTSERV.LOC.GOV

CataList Email List Search Powered by the LISTSERV Email List Manager