On 13/06/2011 03:44, Marc Lavallée wrote:
I made an A/B/C switch to listen between direct stereo, BACCH and the
new DW filters; both filters are cancelling well, but BACCH is less
coloured.
Not EYCv2L-44.wav, I assume. It must be a high $,$$$ version you have!
I am curious how you manage to
On 13 Jun 2011, at 09:30, Dave Malham wrote:
On 12/06/2011 00:34, Robert Greene wrote:
Yes that is it!
Incidentally, I would like to add a (nonmathematical)
point. I think dipoles are more or less a disaster for Ambisonics
Bass is one thing, but what dipoles mostly do is bounce sound off
Robert Greene wrote:
The point I am trying to make is that there are ALWAYS higher frequency
components, except for the eternal om that started before time began
and that will continue into all eternity.(No offense I hope to believers
in the religious content here). Only that type of
Stefan Schreiber wrote:
Robert Greene wrote:
The point I am trying to make is that there are ALWAYS higher frequency
components, except for the eternal om that started before time
began and that will continue into all eternity.(No offense I hope to
believers
in the religious content
On 13/06/2011 18:30, Stefan Schreiber wrote:
Robert Greene wrote:
The point I am trying to make is that there are ALWAYS higher frequency
components, except for the eternal om that started before time began
and that will continue into all eternity.(No offense I hope to believers
in the
13/06/11 02:55, « Fons Adriaensen » f...@linuxaudio.org :
There is no reason why an XTC system should remove center
bass signals, and as far as I know none of them do this.
I suspect you are confusing 'out-of-phase' and 'difference'.
[[Profanity warning: the following contains crude
12/06/11 01:59, Marc Lavallée m...@hacklava.net wrote:
With stereo XTC, I prefer direct stereo bass (without a rear sub) than
crosstalk cancelled bass, even it probably works well in some
research lab...
For some real-life signals (understand, of mono-centered-bass shame),
BACCH filters
On Mon, Jun 13, 2011 at 12:13:19AM +0200, Franck M. wrote:
I'm not sure if I understood the whole mathematical formalism in there, but
Choueiri states that BACCH filters end up maximizing out-of-phase response
in low range (the so-called first band), and as a consequence in-phase
response
Dipole and cardioid subs excite less room modes than omni subs:
http://www.kirchner-elektronik.de/~kirchner/DIPOL-CARDIOIDeng.pdf
http://www.linkwitzlab.com/Woofer%20accuracy.rtf
Uhm...doesn't that depend also on the sub position in the room?
For example, I think that a sub positioned in the
I made an A/B/C switch to listen between direct stereo, BACCH and the
new DW filters; both filters are cancelling well, but BACCH is less
coloured.
Also, there's plenty of bass coming out of the BACCH filter,
more than with normal stereo.
I watched a scope trace of the filters for a panned
On 10 Jun 2011, at 10:43, Paul Hodges wrote:
--On 10 June 2011 10:26 +0200 Bo-Erik Sandholm
bo-erik.sandh...@ericsson.com wrote:
Case B : Use a steady state 50 Hz signal and slowly pan it to new
locations.
Of course, as this involves the level from each speaker changing, the speaker
Marc Lavall?e m...@hacklava.net wrote:
...
In an article I mentioned earlier (Spatial auditory display using
multiple sub-woofers in two different reverberant reproduction
environments), tests were made in an anechoic chamber where the
detection was much better than in a small room. The test
Yes that is it!
Incidentally, I would like to add a (nonmathematical)
point. I think dipoles are more or less a disaster for Ambisonics
Bass is one thing, but what dipoles mostly do is bounce sound off
the back walls(unless you were using them as subwoofers only)
in a way that creates
On 2011-06-11, Martin Leese wrote:
Lately discussions on-list have been rather specific. I've mostly been
lurking around, so it's difficult to follow what's going on with the
research, and even the list consensus. Thus...
Could anybody summarize what has happened within the past 6-12 months
On Fri, Jun 10, 2011 at 09:43:55AM +0100, Paul Hodges wrote:
--On 10 June 2011 10:26 +0200 Bo-Erik Sandholm
bo-erik.sandh...@ericsson.com wrote:
Case B : Use a steady state 50 Hz signal and slowly pan it to new
locations.
Of course, as this involves the level from each speaker changing,
On 10/06/2011 13:33, Fons Adriaensen wrote:
On Fri, Jun 10, 2011 at 09:43:55AM +0100, Paul Hodges wrote:
--On 10 June 2011 10:26 +0200 Bo-Erik Sandholm
bo-erik.sandh...@ericsson.com wrote:
Case B : Use a steady state 50 Hz signal and slowly pan it to new
locations.
Of course, as this
On Fri, Jun 10, 2011 at 01:57:33PM +0100, dw wrote:
The idea of listening for pleasure to bass sounds without overtones or
transients conjures up an image of a twitcher tracking down a rare,
three legged sparrow. The public just don't understand..
It should be clear from the context that
On Fri, Jun 10, 2011 at 03:09:44PM +0200, Jörn Nettingsmeier wrote:
On 06/09/2011 07:46 PM, Marc Lavallée wrote:
Did it work because of the room modes and/or standing waves at 50Hz?
since fons is very probably using a max rV decoder with a strong
antiphase component in the opposite
I agree with Fons two statements. i probably made my argument too absolute.
I did suggest a preference for full range speakers in all locations when
possible and practical. But I also wanted to suggest the utility and quality
possible in a well designed bass management system. Interesting thread.
Le Thu, 9 Jun 2011 11:34:13 -0700 (PDT),
Eric Benjamin eb...@pacbell.net a écrit :
from wikipedia:
As the frequency drops below 80 Hz
it becomes difficult or impossible to use either time difference or
level difference to determine a sound's lateral source, because the
phase
: sursound-boun...@music.vt.edu [mailto:sursound-boun...@music.vt.edu] On
Behalf Of Martin Leese
Sent: den 8 juni 2011 18:35
To: sursound@music.vt.edu
Subject: Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation
Marc Lavall?e m...@hacklava.net wrote:
...
Ambisonics can supposedly reproduce
Of Bo-Erik Sandholm
Sent: den 9 juni 2011 09:37
To: Surround Sound discussion group
Subject: Re: [Sursound] Fwd: Bass Problem in crosstalk cancellation
Yes
But the unanswered question is, can we really detect the originating direction
of low frequency sound if you do not have assistance of the over
Marc Lavall?e m...@hacklava.net wrote:
...
Ambisonics can supposedly reproduce
bass from all directions; is it true?
Yes, assuming:
1. The source contains bass from all
directions
2. The standing waves in the room don't
screw up localisation of bass frequencies.
But this is also
The Harman article basically says that bass in pop music is usually mono
and therefore we should care mostly about the frequency response. Using
multiple subs does helps to smooth the frequency response, but is it
what's most important? There are recordings with stereo bass, so I'd
prefer to
Jim, what you are telling me (indirectly) is that the smallest KEF
Eggs I got are inadequate. Their crossover frequency is 120Hz. The
others models can go down to 80Hz and 70Hz (they are also more
expensive and not on sale). So my initial project of building lots
of small bass reflex enclosures
The idea that one can manipulate standing waves with multiple subs is pretty
well studied. It's separate from the idea of localizing low frequencies but
does imply the usefulness of have multiple subs to improve frequency
response and avoid bass peaks and nulls at locations throughout a space.
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