I sent it to Jörn directly. RCA made a 2nd order microphone at one point
http://www.coutant.org/bk10a/
Aaron
2010/12/20 Jörn Nettingsmeier netti...@stackingdwarves.net:
it's cited in philip cotterel's thesis as the original source of the
second-order gradient microphone. i can't believe
with an eight-speaker bi-rectangle for 1st-order
periphony, but that stretched the limits of domestic acceptability.
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
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back to the front for the reminder of the session.
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
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2011/5/2 Jörn Nettingsmeier netti...@stackingdwarves.net:
those slightly more speakers than necessary cases are a bit tricky...
first order over a 24 hemisphere is horrible,
At the 2008 demo I wrote about, other that the anomaly at the exact
center, I thought it sounded pretty good. So did
appreciate
having a couple of ladders in the living room. I also tried it with
the vertical rectangle in the XZ plane. That works too. Contact me
off list if you want the Ambdec config files I used.
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
://dx.doi.org/10.1121/1.3596476
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
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On Wed, Aug 31, 2011 at 6:06 PM, umashankar mantravadi
umasha...@hotmail.com wrote:
just read about this in the asa newsletter. anyone knows anything about it?
http://www.visisonics.com/Products/AudioCamera.html
It a commercial spinoff of work by Ramani Duraiswami and Adam
O'Donovan at U of
Here's a more direct URL: http://www.umiacs.umd.edu/~odonovan/Audio_Camera/
Aaron
On Wed, Aug 31, 2011 at 9:00 PM, Aaron Heller hel...@ai.sri.com wrote:
On Wed, Aug 31, 2011 at 6:06 PM, umashankar mantravadi
umasha...@hotmail.com wrote:
just read about this in the asa newsletter. anyone
, so I don't know how
amenable it would be to that kind of approach.
Best...
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
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://threadingbuildingblocks.org/
I haven't studied zita-convolver in any detail, so I don't know how
amenable it would be to that kind of approach.
Best...
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
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. Judging form the limited statistics I had access to
and the comments on the site, many people downloaded, played
successfully, and enjoyed the DTS-WAV files distributed on Ambisonia.
If you need help with any of this, feel free to ask.
--
Aaron Heller hel...@ai.sri.com
Menlo Park, CA US
of Acoustical Society of
America, (97) pg 680, January 1995.
% Bass, et al., Journal of Acoustical Society of
America, (99) pg 1259, February 1996.
% Kinsler, et al., Fundamentals of Acoustics, 4th ed.,
pg 214, John Wiley Sons, 2000.
Aaron
--
Aaron Heller hel...@ai.sri.com
]) are
add_row 0.102380 0.00 0.311540
It's in the high-50s (F) and about 40% RH here in Menlo Park.
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Fri, Dec 16, 2011 at 3:33 AM, Fons Adriaensen f...@linuxaudio.org wrote:
On Fri, Dec 16, 2011 at 09:34:04AM -, Richard
On Thu, Dec 29, 2011 at 3:06 PM, Franz Zotter zot...@iem.at wrote:
... see papers of last Ambisonics Symposia ...
Are these available? The conference site still shows To be determined.
http://www.vis.uky.edu/ambisonics2011/proceedings.php
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA
On Sat, Jan 7, 2012 at 1:48 AM, Franz Zotter zot...@iem.at wrote:
Hi,
On Friday 30 December 2011 03:37:42 Aaron Heller wrote:
Are these available? The conference site still shows To be determined.
http://www.vis.uky.edu/ambisonics2011/proceedings.php
I asked the authors for their papers
The code that goes with the LAC2012 conference paper does 3D and
higher orders. In fact we used it to make a new 3rd-order Ambdec
config for CCRMA's 22 speaker array. Its written in MATLAB/Gnu
Octave, and it's not a lot of code. So plenty of opportunity for
tinkering with the goal functions.
http://www.ai.sri.com/ajh/ambisonics/tetra-rVrE/tetra.pdf
[...]
if you have to play back lower order material as well (such as a native
soundfield recording), i found it is advisable to have a separate low-order
decoder which uses fewer speakers, for better clarity and less phasing.
aaron
Following up, I made a UHJ version of Eight Directions. Grab it and the
MATLAB code that made it from
http://ambisonics.dreamhosters.com/ (at the bottom of the page)
As you can see from the code, is is easy to plug in any coefficients needed.
On Fri, Mar 9, 2012 at 2:07 PM, Aaron Heller
Ambisonics Around for the technical details of the
process. http://www.ambisonic.net/pdf/ambisonics_around.pdf
I know there were several hundred downloads of my recordings in that
format -- Stravinsky, Beethoven, Brahms, Dvorak, recorded with my
Soundfield MkIV for NPR's Performance Today.
--
Aaron
2012, Aaron Heller wrote:
Um. Every single recording on Ambisonia was available as a
DTS-CD RIFF/WAV file of a 4.0 decode (that is, Center and LFE were
silent). All one needed to do was burn them to a CD and play in a DVD
player connected to a 5.1 home theater set up. See Richard
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Wed, Apr 4, 2012 at 1:48 AM, Michael Chapman s...@mchapman.com wrote:
Unless of course they publish a file format for it
Want a minimal and purposely highly (even overtly) extensible one? That
I can design. In fact I've meant to do
Recording Techniques, AES
Preprint 6610. http://www.aes.org/e-lib/browse.cfm?elib=13352
http://www.aes.org/e-lib/browse.cfm?elib=13352
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Tue, Apr 3, 2012 at 3:01 PM, Robert Greene gre...@math.ucla.edu wrote:
Thanks everybody for the links
replacement, and the Brahms after further tweaking
by Richard Lee and Eric Benjamin.
Thanks
Aaron
On Tue, Apr 3, 2012 at 6:12 PM, David Pickett d...@fugato.com wrote:
At 14:01 02/04/2012, Aaron Heller wrote:
I put some files at
http://ambisonics.dreamhosters.com/DTS/
I downloaded, cut
Since Bo-Erik mentioned it, I've been wondering about multichannel
computer audio over HDMI to a home theater amp.
Does anyone know if ALSA on Linux or Core Audio on MacOS support this?
In other words, if I'm running Linux on a motherboard with HDMI
output, do the eight channels of audio show up
significantly from the idealized math
models used here. In addition, the capsules shadow each other and the
space in the middle acts as a resonant cavity. So you really have to
measure the finished array and then design the EQ.
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Sun, May 27
on with Scribd,
but I've updated the page with direct links to PDFs of all the papers.
(BLaH3 has several updates over previous versions).
http://www.ai.sri.com/ajh/ambisonics/
which is mirrored at
http://ambisonics.dreamhosters.com/
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
I can second the recommendation for Planet CCRMA. I've used it for
for audio work for a decade (since Red Hat 7 days) on various mini-ITX
based systems and laptops. 'Nando Lopez-Lezcano (the maintainer) and
others on the mailing list are helpful and quick to reply.
On Wed, Jul 4, 2012 at 9:51
Very good idea. OK with me.
Aaron (hel...@ai.sri.com)
Menlo Park, CA US
On Thu, Sep 27, 2012 at 3:43 AM, Michael Chapman s...@mchapman.com wrote:
Earlier today, I referred to a slow pan of a symphonic piece.
Perhaps it would be of interest to others :
-as a demo of ambisonic panning
A bit of a warning... Richard Furse's Ambisonic Decoding Equations
page is a useful resource, but is a bit vague on how the different
matrices should be used (or adapted).
Specifically, the coefficients listed as Rig Decode Matrix to
Reproduce Spherical Harmonics (which have also been called
On Thu, Oct 11, 2012 at 9:55 AM, Charlie Richmond charlie@gmail.com wrote:
On Thu, Oct 11, 2012 at 9:51 AM, Stefan Schreiber
st...@mail.telepac.ptwrote:
Sampo Syreeni wrote:
How about a simple group called ambisonic or Ambisonics, in FB?
There already is an ambisonics group in fb:
On Tue, Oct 30, 2012 at 9:01 AM, Michael Chapman s...@mchapman.com wrote:
'Native' CAF also has the possibility for 'W,X,Y,Z' so (again without
acknowledgment) I suspect that could be counted as a *.amb
variant.
Has anyone had any success with this? It's in the Core Audio header
files, but a
Without more details, it hard to speculate about problems, but I'll note
that subtracting the outputs of two omnis to get a fig-8 response will
result in a frequency response that rises 6dB/octave with a 90 degree phase
shift relative to the sum. Unless that is corrected, these signals are not
Peus, 1985: Natural Listening with a Dummy Head,
English, 6 pages
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA UA
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some discussion here:
http://searchstorage.techtarget.com/definition/Kibi-mebi-gibi-tebi-pebi-and-all-that
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
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usable. I've have NFC
and phase-matched crossovers filters working in Faust, but not integrated
yet.
If anyone like to try it, contact me off list (hel...@ai.sri.com) and I'll
send you a beta copy. I'll be doing a general release as soon as I get
some instructions written up.
Aaron Heller (hel
mic at right angles and you have a natural horizontal B-format array (WXY).
Martin Kantola's Panphonic microphone works this way:
http://www.panphonic.com/
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Tue, Apr 23, 2013 at 12:45 PM, Eric Carmichel e...@elcaudio.com wrote:
This post
listen and
report back on what you hear.
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
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have reported good results with 8,
others report spectral contamination. Mathematical analysis supports the
latter.
Aaron Heller
Menlo Park, CA US
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Helmut Wittek gave a paper Tonmeistertagung 2006 that discusses the
relationship between Schoeps Double-MS and Ambisonic B-format.
http://hauptmikrofon.de/HW/TMT2006_Wittek_DoubleMS_neutral.pdf
English translation here:
http://www.schoeps.de/documents/SCHOEPS_Double_MS_paper_E_2010.pdf
On Sun, May 12, 2013 at 3:59 AM, Iain Mott m...@reverberant.com wrote:
The Earfilms link is interesting. I wonder if people on the list have
other references or links on ambisonics applied in theatrical
productions, either traditional theatre or theatrical installation? Your
own productions
On Sat, May 18, 2013 at 3:01 AM, Rev Tony Newnham
revtonynewn...@blueyonder.co.uk wrote:
Indeed - there's a picture or two in one of his books, which I have here
somewhere. I don't think he tried to mimic the piositions of instruments
within an ensemble though - except maybe the piano. No
The term Ambisonics does not appear at all in Fellgett's 9/72 article
[1], but is in the title in 11/73 [2].
[1] P. Fellgett, “Directional information in reproduced sound,” Wireless
World, vol. 78, no. 1443, pp. 413–417, 1972.
[2] P. Fellgett, “Ambisonic reproduction of sound,” Electronics and
it on
orchestral recordings at his studio in Stockton and it sharpens up the
orchestra image nicely.
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Wed, Jun 26, 2013 at 10:02 AM, Eric Carmichel e...@elcaudio.com wrote:
Greetings All,
I have a friend who's an advocate of the Decca Tree
here:
http://faust.grame.fr
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Wed, Jul 3, 2013 at 7:33 AM, Moritz Fehr m...@moritzfehr.de wrote:
hi everyone,
thank you very much for your replies -- what i would like to achieve is
playing a mix of a b-format recording combined
in the encoder?
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Fri, Aug 2, 2013 at 9:39 AM, Stefan Schreiber st...@mail.telepac.ptwrote:
Martin Leese wrote:
Stefan Schreiber wrote:
...
To offer a backward-compatible extension of a UHJ extended AAC
stereo file, you would have
...@ai.sri.com) if you want to try it out.
Aaron Heller
Menlo Park, CA US
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I don't know if it is relevant, but I found this patent application
http://www.faqs.org/patents/app/20110135098
Patent application title: METHODS AND DEVICES FOR REPRODUCING SURROUND
AUDIO SIGNALS
Inventors: Markus Kuhr (Wedemark, DE) Jurgen Peissig (Wedemark, DE) Axel
Grell (Wedemark, DE)
Also here, with PDF
http://www.google.com/patents/US20110135098
(I see Google Patents, now has a Find prior art button)
On Sat, Sep 14, 2013 at 8:36 AM, Aaron Heller hel...@ai.sri.com wrote:
I don't know if it is relevant, but I found this patent application
http://www.faqs.org
On Mon, Sep 23, 2013 at 3:55 PM, Andy Furniss adf.li...@gmail.com wrote:
I don't quite understand the in phase though, are you saying that they
artificially adjust phase for the same sound that comes out of more than
one speaker to affect the mixdown?
The Recording Academy recommendations
A first-order B-format panner needs to implement the equations
W = S * sqrt(1/2)
X = S * cos(az) * cos(el)
Y = S * sin(az) * cos(el)
Z = S * sin(el)
where S is the signal being panned and az and el define the direction.
The Calrec Soundfield MkIV controller box has analog circuitry for
On Thu, Sep 26, 2013 at 12:15 PM, Eero Aro eero@dlc.fi wrote:
The Soundfield microphone directional controls aren't exactly panning.
Sorry to quibble, but if I feed a signal into the W and X inputs (with
appropriate scaling) and ground Y and Z, then the soundfield controls on a
Mk4 behave
[1] P. Power, C. Dunn, B. Davies, and J. Hirst, “Localisation of Elevated
Sources in Higher-Order Ambisonics,” BBC RD, WHP 261, Oct. 2013.
http://www.bbc.co.uk/rd/publications/whitepaper261
[2] D. Satongar, C. Dunn, Y. Lan, and F. Li, “Localisation Performance of
Higher-Order Ambisonics for
of Arts, Design and Technology
University of Derby, UK
e: p.len...@derby.ac.uk
t: 01332 593155
From: Sursound [sursound-boun...@music.vt.edu] On Behalf Of Aaron Heller [
hel...@ai.sri.com]
Sent: 08 October 2013 23:10
To: Surround Sound discussion group
Interesting paper in PNAS, from July. I believe it is open access, so
anyone can read/download. Aaron
http://www.pnas.org/content/110/30/12186.short
The supplemental information (SI) shows some of the equipment and more math.
I. Dokmanić, R. Parhizkar, A. Walther, Y. M. Lu, and M. Vetterli,
I took the liberty of merging them into 4-channel files and putting them on
my server, which might be easier to access than the skydive (the UI was in
Japanese for me, fortunately I recognized the character for 'down')
http://ambisonics.dreamhosters.com/01-Birds_WXYZ-110425_0119.wav
Not cheap, but the Smyth Research Realizer does do head tracking with any
headphones. It also measures your HRTFs and headphone's response. I
played with it at Burning Amp this year and it was quite effective at
externalizing the sound from headphones.
The wikipedia article on Ambisonics has the following paper under Source
texts on Ambisonics – basic theory. I can't seem to find a copy from my
usual sources. Do any of have a copy?
W.C.Clarck, K.Alimi, B.Spendor: Ambisonic depending Aural recognition,
International Institute of Inuitive
On Fri, Dec 20, 2013 at 7:40 PM, David Worrall worr...@avatar.com.auwrote:
I remember reading that, with exposure, human's audio-processing
hardware can adapt to/learn how to use a non-optimal HRTF, given a bit of
time.
Does anyone have a reference for this?
I don't know about
Dick Duda and Ralph Algazi gave a talk and demo at a San Francisco AES
meeting at Dolby Labs a few years ago. At that time, they were recording
with a head-sized sphere with either 8 or 16 microphones around the
equator. They imagined that 8 would be used for teleconferencing and 16
for music
Jan 2014 Physics Today just landed on my desk and the cover article is by
Tapio Lokki on evaluation of concert halls.
Tasting music like wine: Sensory evaluation of concert halls
http://scitation.aip.org/content/aip/magazine/physicstoday/article/67/1/10.1063/PT.3.2242
It is labeled free
/journal/poma/19/1/10.1121/1.4799424
On Fri, Jan 17, 2014 at 12:28 PM, Jörn Nettingsmeier
netti...@stackingdwarves.net wrote:
On 01/17/2014 07:29 PM, Aaron Heller wrote:
Jan 2014 Physics Today just landed on my desk and the cover article is by
Tapio Lokki on evaluation of concert halls
Steve,
I'm not sure I follow everything you're saying about angle errors, but
there are a few installations that work well here in the SF Bay area that I
have personal experience with. The Listening Room at Stanford's CCRMA
is a 3rd-order periphonic facility, described here
I have a GigaPort AG connected by USB to my MacBook Pro and it works
correctly with Chrome Version 33.0.1750.152
I used Audio MIDI Setup (in /Applications/Utilites) and selected
Multichannel/5.1 Surround for the speaker configuration of the GigaPort
device.
Aaron Heller (hel...@ai.sri.com
if
WBIN is considered True, and WBIN is actually a constant set to 0.
--
Marc
Le Tue, 18 Mar 2014 01:01:25 +,
Fons Adriaensen f...@linuxaudio.org a écrit :
On Mon, Mar 17, 2014 at 05:06:32PM -0700, Aaron Heller wrote:
On Mon, Mar 17, 2014 at 1:09 PM, Fons Adriaensen
f
There were three 'with height' workshops at the 2012 AES meeting in San
Francisco* that featured an Aura 3D playback setup. David Bowles
(Swineshead) and Paul Geluso (NYU) played some recordings that were quite
nice -- height in front, with convention surrounds -- but the remainder,
including
I recall this camera cluster being used for the Lincoln Sound and Vision
production with that odd four faced binaural dummy head.
http://now.lincoln.com/2013/02/an-entirely-new-sound-and-vision-2/
On Thu, Apr 10, 2014 at 10:39 AM, mgra...@mstvp.com wrote:
While at NAB2014 in Las Vegas
On Sat, Jul 19, 2014 at 9:47 AM, m...@superorg.com wrote:
On 19 Jul 2014, at 10:13, Ralf R Radermacher wrote:
Am 18.07.14 15:21, schrieb Rupert Brun:
The BBC will make the BBC Proms Concerts available in 4.0 using
MPEG-DASH. The stream will be available internationally.
Does anyone have the
On Wed, Dec 31, 2014 at 3:20 AM, Dave Malham dave.mal...@york.ac.uk wrote:
I wonder how closely this is related to the paper he was one of the
authors
of at the 2010 Ambisonics Symposium? Anyone have it handy?
Here's the URL:
Hi Aaron,
>
> Thanks for pointing that out; just a series of bad (horrible, really!)
> typos from transcribing code. :) The equations should be corrected now.
>
> Dillon
>
> On Thu, Jan 14, 2016 at 9:13 AM Aaron Heller <hel...@ai.sri.com> wrote:
>
> > Unfortunate
oordinates are in the last three columns of the csv file.
If you are still having trouble, please send me the speaker coordinates (in
private email) and I will be happy to create the files for you.
Best...
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA, US
On Sun, Feb 28, 2016 at 2:30 PM, Mar
Hi Ricky,
I took a quick look at grambipan.c. For FuMa U you've written
189: (*APout4++) = sample1 * (2 * cosf(sample2)) * cosf(sample3) *
cosf(sample3); //U
whereas the correct expression (found on Richard Furse's webpage, for
example) is
U:cos(2A) cos(E) cos(E)
Please note that
Marc Lavallée, Eric Benjamin, and I put together a Trifield (three speaker
stereo) plugin and demo'ed it a Burning Amp last fall. It is hosted at
https://bitbucket.org/ajheller/trifield/overview
It is written in Faust so can be compiled for a number of different hosts,
but we provide
ab, specify "windows" and "vst" and download the VST
plugin. (or AU, or LADSPA, or MaxMSP, or ...).
More on Faust at
http://faust.grame.fr/Documentation/
--
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Tue, Apr 12, 2016 at 1:30 AM, Jörn Nettingsmeier <
netti...@
AM, Aaron Heller <hel...@ai.sri.com> wrote:
>
>
>
> On Thu, Mar 24, 2016 at 10:47 AM, Aaron Heller <hel...@ai.sri.com> wrote:
>>
>> ISO/IEC 14496-11 "Information technology — Coding of audio-visual
objects —Part 11: Scene description and application engine"
uldn't find information
about
> > their HOA channel ordering and normalization scheme.
> > Could you please point me to these?
> >
> > Thank you,
> > Sönke
> >
> >
> > 2016-03-24 7:25 GMT+01:00 Aaron Heller <hel...@ai.sri.com>:
> >
> > > Martin
On Thu, Mar 24, 2016 at 10:47 AM, Aaron Heller <hel...@ai.sri.com> wrote:
> ISO/IEC 14496-11 "Information technology — Coding of audio-visual objects
> —Part 11: Scene description and application engine" (second edition, dated
> 11/2013; see Table 9 in page 36)
>
&
>From an existing AMB file, any of these will work
. flac --channel-map=none AJH_eight-positions.amb
. sox AJH_eight-positions.amb AJH_eight-positions.flac
. open AMB file in Audacity and then export selecting FLAC format
Note that FLAC is limited to eight channels, so this will work for
Martin,
Note that while AmbDec can accommodate FuMa normalization on input, it
still makes the connections to jack in ACN order so the inputs will often
appear in Jack in ACN order (and never in FuMa order). I say "often"
because the Jack API does not have any notion of the 'order' of an
Make that "compiled to VST"...
http://faust.grame.fr/onlinecompiler/
On Wed, Mar 23, 2016 at 11:25 PM, Aaron Heller <hel...@ai.sri.com> wrote:
> Martin,
>
> Note that while AmbDec can accommodate FuMa normalization on input, it
> still makes the connections to jac
In BLaH11 (AES 137, 10/2014, Los Angeles) , Eric and I compared horizontal
FOA over a 2-meter radius 4-speaker diamond vs. 8-speaker octagon with
binaural dummy head measurements and listening tests. (classic decoding:
2-band, rV=1 at LF, rE=sqrt(1/2) at HF, 400 Hz xover, NFC).
The TL;DR summary
Is there some trick to uploading these files? The files I make upload, but
then fail during processing.
I make the files like this:
$ /opt/local/bin/ffmpeg -loop 1 -framerate 30 -i cube-1920x960.png -i
> AJH_eight-positions-ambix.wav -map 0:v -map 1:a -c:a pcm_s16le
> -channel_layout quad
looked at the
spatial spreading of energy with a simple parametric decoder. No listening
tests, just visual comparison of plots of spatial energy.
We found very little spreading with low-complexity AAC, but a fair amount
with HE-AAC.
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
-- n
/ambidecodertoolbox/adt/src/6c6bdc2460352cd4b72d2dde6928fcb5141d1976/faust/ambi_panner_ambix_o5.dsp?fileviewer=file-view-default
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Mon, Apr 18, 2016 at 9:12 AM, Courville, Daniel <courville.dan...@uqam.ca
> wrote:
> Jan wrote:
>
>
Hi Martin,
A few things...
1. You should use a first-order decoder to play first-order sources. That's
not the same as playing a first-order file into the first-order inputs of a
third-order decoder.
2. 1st-order periphonic (3D) ambisonics on a full 3D loudspeaker array gets
the energy correct,
Forgot the URL...
http://www.ai.sri.com/~heller/ambisonics/index.html#test-files
On Wed, Jul 5, 2017 at 6:15 PM, Aaron Heller <hel...@ai.sri.com> wrote:
> I have some first-order test files that you can try. They're FuMa
> order/normalization. There's "eight directions&quo
The decoders produced by my toolbox in FAUST (the ".dsp" files) have
distance, level, and near-field compensation up to 5th-order (and more
soon). Those can be compiled to a large number of plugin types, including
VST, AU, MaxMSP, ...
https://bitbucket.org/ambidecodertoolbox/adt
Aaron
On
Oli... Perhaps more than you wanted, but Plogue Bidule has a 16-channel
recorder (up to 32 ch) and is available as VST and AU plugins. It will also
host VST and AU plugins, and do many other types of processing. There is a
standalone version as well that interfaces to audio devices directly.
> On Jun 21, 2017, at 1:13 PM, Oliver Larkin wrote:
>
>
> I had tried bidule, but it looked like it was going to record 16 mono files
The setting in Bidule's Audio File Recorder is a bit confusing here... if you
set "Channels per File" to "Stereo" it records all the
Doing this was one of the programming assignments in the course "Audio
Signal Processing for Music Applications"
https://www.coursera.org/learn/audio-signal-processing
Excellent course. Tools here:
https://www.upf.edu/web/mtg/sms-tools
https://github.com/MTG/sms-tools
On Tue, Oct
I use it extensively as well. Easy to control from a midi control surface
if you need physical controls. Glad to help with any questions.
Aaron
On Wed, Oct 25, 2017 at 11:58 AM, Fons Adriaensen
wrote:
> On Wed, Oct 25, 2017 at 02:43:23PM -0400, len moskowitz wrote:
>
> >
>
> > On Oct 25, 2017, at 10:59 AM, Aaron Heller <ajhel...@gmail.com> wrote:
> >
> > Doing this was one of the programming assignments in the course "Audio
> > Signal Processing for Music Applications"
> >
> > https://www.coursera.org/learn/a
om Etienne Deleflie's Universal
Ambisonic work
https://tools.ietf.org/html/draft-ietf-codec-ambisonics-07
Martin Leese has posted pointers to it here from time to time. Early
versions had errors, which I informed them of and were fixed in later
versions.
Aaron Heller (hel...@ai.sri.com)
Menl
The radius of the tetrahedral array determines the frequency at which the
B-format polar patterns start to breakdown. The formula given by Gerzon is
c/(pi*r), where c is the speed of sound and r is the radius of the
array[1]. Depending of the design, the acoustic radius is about 10% larger
than
the Audio MIDI Setup
program.
Aaron Heller
Menlo Park, CA US
On Thu, Mar 8, 2018 at 5:54 AM, Augustine Leudar <augustineleu...@gmail.com>
wrote:
>
> Hi Marc,
> The processing involve dhere is not too CPU intensive - rather its whether
> the graphics card is capable of transmitting
, the diffuse field response will be
wrong.
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
On Thu, Mar 8, 2018 at 4:27 PM, Marc Lavallée <m...@hacklava.net> wrote:
>
> Hi Steven, and thanks for the useful info.
>
> The fact that the Twirling720 presents itself as a ste
One correction, before you invert the A-to-B gain matrix, you have to
account for the -3dB gain on W in B-format FuMa.
On Thu, Mar 8, 2018 at 8:35 PM, Aaron Heller <ajhel...@gmail.com> wrote:
> A friend bought one, so I've been doing some reverse engineering.
>
> In the 96
One more detail... I had to create an Aggregate audio device to get it
working with Jack. I don't remember the details, but could refresh my
memory if anyone needs them.
On Thu, Mar 8, 2018 at 8:59 PM, Aaron Heller <ajhel...@gmail.com> wrote:
> I have a "Mid-2010"
A new site hosting Stephen Thorton's diaries and a new film about Michael
Gerzon and Ambisonics at Oxford
https://intothesoundfield.music.ox.ac.uk
All very nicely done.
Aaron Heller (hel...@ai.sri.com)
Menlo Park, CA US
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The is known as the "substitution method" in microphone calibration
literature.
On Sat, Sep 22, 2018 at 9:07 AM Fons Adriaensen wrote:
> On Sun, Sep 16, 2018 at 12:18:54PM -0600, Jonathan Kawchuk wrote:
>
> > I'm also curious if anyone has experimented with running an inverse EQ
> > calibration
If it is any help, the script I wrote to make YouTube videos from AMB files
is here:
https://bitbucket.org/ambidecodertoolbox/amb2yt/src
Some samples that might help you reverse engineer the format
https://youtu.be/eY9DMn8pgGA
https://youtu.be/RC4ptd9B-NA
You could make a file with
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