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Hi-Rez Highway: Re: The reality of figure of 8 microphones: by regreene New high resolution SACD releases, players and technology. |
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In Reply to: Re: The reality of figure of 8 microphones: posted by Jean-Marie Geijsen on July 27, 2005 at 13:17:25:
"A little learning is a dangerous thing".Geijsen has posted a lot of technical material, some of which is accurate, and deduced therefrom completely incorrect conclusions.
A few points:
1 stereo imaging: The point of Blumlein stereo is not just that things are in the right place(though they indeed are). Rather , the point is that things are SOMEPLACE. Spaced omni recordings present confusing and internally contradictory locational cues to the listener to the point that things are not exactly anywhere. It is well known that the ear/brain tries to locate all sounds, and when it cannot do so, it continues to try. This creats uncertainty and anxiety. (Indeed one of the classic pictures of panic is being startled by a sound seemingly from out of nowhere). I cannot say that no one likes fuzzy spaced-omni stereo , but I surely do not, for this reason among others.
2 Coloration: The BBC, who have done more work on this sort of thing than anyone else, arrived at the conclusion that the least colored(or should I say coloured) vocal sound was that of the Coles ribbon(a figure 8). So much for the coloration claims for omnis.
3 Spaced -omni stereo has no playback reciprocity paradigm whatever. Moreover, the mixing of the mike outputs in the recording process and/or on playback creates wild comb filter effects. To check this out, play a mono pink noise signal through two speakers. Now move from the central axis,even a little way. The sound changes wildly and unpredictably. This is what happens when a sound source is picked up by two spaced omnis and played back in stereo, if the sound is anywhere except EXACTLY on the center line. Comb filtering like mad.
4 Omnis pick up diffuse field sound in abundance, but there is no reciprocal playback mechanism for diffuse soundfield. This is a bit thorny to explain in detail, but it is still true. (The ears diffuse field response is a lot different from its direct arrival, as from speakers, response).
In short, the whole idea that omnis do anything that one can describe as predictabe, playback-paradigm sound reproduction is simply a misconception. (The famous Bell Labs experiments were reproduction of sound IN AN AUDITORIUM--where the hall was providing a lot of reverb. This has essentially NOTHING to do with the reproduction of sound for a home environment).Even if omni mikes were perfect(which of course they are far from being), the spaced omni stereo process would produce a confused, colored, and inaccurate sonic picture.
REG
PS I have described all this in much more detail on www.regonaudio.com. Have a look!
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Topic - WARNING! Sad to say I am very disappointed in the new Water Lily Acoustic SACD - Teresa 20:47:06 07/19/05 ( 80)
- Re: The reality of figure of 8 microphones: - Jean-Marie Geijsen 13:17:25 07/27/05 ( 11)
- Re: The reality of figure of 8 microphones: - regreene 07/29/05 14:48:46 07/29/05 ( 4)
- Re: The reality of figure of 8 microphones: - Jean-Marie Geijsen 17:59:09 07/30/05 ( 1)
- Re: The reality of figure of 8 microphones: - regreene 20:24:58 07/30/05 ( 0)
- REG I have just one question ... - Teresa 00:43:39 07/30/05 ( 1)
- Re: REG I have just one question ... - regreene 09:10:56 07/30/05 ( 0)
Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 01:37:36 07/28/05 ( 5)
- Re: The reality of figure of 8 microphones - Jean-Marie Geijsen 13:21:38 07/28/05 ( 4)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 21:18:03 07/28/05 ( 0)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 17:32:15 07/28/05 ( 2)
- Re: I've heard the some... - unclestu52 21:56:40 07/28/05 ( 1)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 23:09:29 07/28/05 ( 0)
Re: WARNING! - BS 20:01:35 07/22/05 ( 0)
Waterlily recordings - regreene 09:55:36 07/21/05 ( 42)
- Re: Waterlily recordings - Chris from Lafayette 21:11:22 07/22/05 ( 31)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 00:47:44 07/23/05 ( 30)
- Re: Water Lily Russian Recordings - Chris from Lafayette 11:04:27 07/23/05 ( 29)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 11:41:12 07/23/05 ( 28)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 13:39:43 07/23/05 ( 27)
- Re: Water Lily Russian Recordings - Chris from Lafayette 17:06:12 07/23/05 ( 26)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 18:59:13 07/23/05 ( 25)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 22:09:50 07/23/05 ( 24)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 02:14:51 07/24/05 ( 23)
- Re: Water Lily Russian Recordings - Chris from Lafayette 12:10:31 07/24/05 ( 22)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 23:06:33 07/24/05 ( 10)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 07:06:06 07/25/05 ( 1)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 01:00:36 07/26/05 ( 0)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 07:05:23 07/25/05 ( 7)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 00:51:32 07/26/05 ( 6)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 16:14:42 07/26/05 ( 5)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 23:56:13 07/26/05 ( 1)
- Re: Water Lily Russian Recordings and turning the other cheek.... - regreene 11:14:58 08/1/05 ( 0)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 19:56:41 07/26/05 ( 2)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 23:52:38 07/26/05 ( 1)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 10:36:26 07/27/05 ( 0)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 17:05:07 07/24/05 ( 10)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 19:11:06 07/24/05 ( 6)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 22:40:40 07/24/05 ( 5)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 00:45:52 07/26/05 ( 0)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 08:47:06 07/25/05 ( 3)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 10:18:50 07/25/05 ( 2)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 01:04:49 07/26/05 ( 0)
- Re: Water Lily Russian Recordings and turning the other cheek.... - Chris from Lafayette 00:39:25 07/26/05 ( 0)
- "The dog may bark, but the caravan moves on..." - Great quote! Dave555 18:04:39 07/24/05 ( 2)
- killer set- Sufi Soul - tunenut 22:15:47 07/24/05 ( 1)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 21:09:04 07/24/05 ( 1)
legality and morality - tunenut 09:23:03 07/22/05 ( 0)
The SKRYABIN / SVETLANOV Water Lily SACD is a sonic travisty and a slap in the face to anyone who loves realistic sound! - Teresa 19:26:11 07/21/05 ( 8)
- Re: The SKRYABIN / SVETLANOV Water Lily SACD is a sonic travisty and a slap in the face to anyone who loves realistic so - dmeinwald 09:24:22 07/23/05 ( 2)
- Brahms No. 1 with Artur Rubinstein, Fritz Reiner and the CSO on RCA LSC SACD - Teresa 17:40:06 07/23/05 ( 1)
- what about the lack of low frequency response on the Svetlanov? - Teresa 11:14:00 07/23/05 ( 1)
Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 16:43:53 07/22/05 ( 4)
- Hi Kavi, I have always loved and been a big supporter of Water Lily Acoustic Recordings - Teresa 20:15:04 07/22/05 ( 0)
This happens to nerdy folks who buy music based on the - Kristian85 09:22:00 07/21/05 ( 0)
Theresa, different listening positioning may be necessary - jim nj 09:04:53 07/20/05 ( 1)
- Teresa, sorry about extra h in above name! (nt) - jim nj 09:14:01 07/20/05 ( 0)
Thanks, and reading things like this..... - Sordidman 08:47:59 07/20/05 ( 1)
- he's not right - tunenut 09:32:01 07/20/05 ( 0)
umm yeah... my experience is completley reverse of yours... - danny kaey 20:55:36 07/19/05 ( 18)
- Great - We can have Dueling Reviews! - Chris from Lafayette 23:16:26 07/19/05 ( 13)
- Re: Great - We can have even more Dueling Reviews! - raffells 01:42:14 07/20/05 ( 12)
- About The Music? I Don't Feel That Is The Main Priority Here - Robertc88 03:46:59 07/20/05 ( 11)
- correct Robert, the music is excellent it's the recording quality that leaves me cold. - Teresa 08:13:11 07/20/05 ( 10)
- they are recorded correctly... - danny kaey 09:05:55 07/20/05 ( 9)
- I listen to orchestral music live and it has a solid bass foundation and lots of energy below 100Hz - Teresa 20:45:25 07/20/05 ( 8)
- again, my experience is the exact opposite... - danny kaey 21:51:15 07/20/05 ( 7)
- Agreed. - Kal Rubinson 05:42:06 07/21/05 ( 0)
- perhaps there's 2 versions of this Water Lily SACD? - Teresa 23:26:51 07/20/05 ( 5)
- Re: perhaps there's 2 versions of this Water Lily SACD? - Kal Rubinson 08:46:14 07/21/05 ( 4)
- I tried playing really loud through speakers and even though my Sennheiser HD580 headphones. - Teresa 19:31:08 07/21/05 ( 3)
- you can very well derive proper MCH from a 2ch 2mic recording... - danny kaey 20:56:53 07/22/05 ( 0)
- Your headphone rig sucks - BS 15:02:39 07/22/05 ( 0)
- Re: I tried playing really loud through speakers and even though my Sennheiser HD580 headphones. - Kal Rubinson 04:34:57 07/22/05 ( 0)
Attention all registered posters: E-mail me to listen to this SACD free, we will do like the Blues In Orbit SACD - Teresa 21:48:55 07/19/05 ( 3)
- Re: Attention all registered posters: E-mail me to listen to this SACD free, we will do like the Blues In Orbit SACD - cf@tiscali.se 09:44:04 07/31/05 ( 2)
- Hi Chris click on the "A" after my name and you will go the page to submit email. - Teresa 17:38:12 08/4/05 ( 1)
- Water Lily Russian Recordings and turning the other cheek.... - music@waterlilyacoustics.com 17:58:16 08/5/05 ( 0)