Re: [Sursound] , ambi playback configution and calibration
Thought the EU had mandated all phones that were sold in Europe had to have a micro usb connection for charging?? Dave On 26 September 2013 13:47, Michael Chapman s...@mchapman.com wrote: And, it has to be ~standard~ so that any player can talk with any speaker. Richard Dobson An interesting idea ( ... patents ... ) Ma daughter had to spend the last afternoon before a foreign trip driving into 'th big city' to get a new charger cable for her iPhone-Y, because she couldn't borrow the cable off her sister's iPhone-X because they are totally different. I usually joke to the children: Imagine if each manufacturer of car fitted a unique caravan/trailer connection. I seem to be out-of-date ... some manufacturers change* the coupling with each year's model. Michael *and customers put up with it. . . ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- -- As of 1st October 2012, I have retired from the University. These are my own views and may or may not be shared by the University Dave Malham Honorary Fellow, Department of Music The University of York York YO10 5DD UK 'Ambisonics - Component Imaging for Audio' -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20131007/13f4db29/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
It is surprising, not least because speakers are able to be microphones as well... Dr. Peter Lennox School of Technology, Faculty of Arts, Design and Technology University of Derby, UK e: p.len...@derby.ac.uk t: 01332 593155 -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of David Worrall Sent: 26 September 2013 05:14 To: Surround Sound discussion group Subject: Re: [Sursound] , ambi playback configution and calibration Hi David, Thanks for your considered response. I _was_ actually thinking of it autolocating the speakers. And not necessarily just for ambisonics, actually. Some sort of a spectrum analyser/preamplifier device that derived the correct decode/gain controls of the real system acccording to the actual location of the loudspeakers, decode algorithm and your preferred listening spot ... and that self-callibrated each time you turned the system on. Given how difficult it seems to be for billions of people to set up a 5.1 system, surely there must be a market? I'm actually surprised that such a device doesn't already exist. Oh well, back to the stone-age method... David On 23/09/2013, at 9:33 PM, Dave Hunt wrote: Hi, Date: Thu, 19 Sep 2013 21:50:00 +0200 From: David Worrall worr...@avatar.com.au To: Surround Sound discussion group sursound@music.vt.edu Hi All, I'm away from my back-up of this list (*) so please forgive if this has been answered before, but Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? thanks, David Presumably it doesn't have to auto-locate the speakers ?? That would be clever and probably expensive. I have something that was built in MAX/MSP, and can turn it into an application (Mac OS preferred but Windows is probably possible). It is first order only, up to 16 speakers, and based on all the info about good decoders I've found, and can understand and implement. Of course it could be extended to higher orders, once the maths is thought through and the issue of different kinds of W. Haven't done this as most of the people I'm dealing with don't have enough speakers to make it worthwhile or essential. It's basically part of something else which is trying to do all sorts of ambisonic things with 16 inputs from a DAW running on the same computer. So, until higher powered computers become affordable in an income challenged age, processing power has to be carefully used. Increasing the ambisonic order starts to push up the number of audio streams that need handling in a non-linear manner. Such a decoder needs listening to, which means that you have to able to generate something to listen to to assess how well the encode/decode works, something I haven't had time to do above 2nd order. If only there was more time, things got done quicker, or someone was paying for the work by the hour. Ciao, Dave Hunt ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20130926/3ad4f0bf/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound _ The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to info...@derby.ac.uk. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
Given how difficult it seems to be for billions of people to set up a 5.1 system, surely there must be a market? Possibly not exactly what you are looking for, but Genelec has software for their DSP-speakers: http://www.genelec.com/learning-center/key-technologies/dsp-monitoring-systems/autocal/ http://www.genelec.com/products/glm/ I think they also have an IPhone (or similar) app for simple adjustment of a stereo pair, toeing-in etc. I just cannot find it now. Or it may be a third party application. - - - And a very old thing that relates to the subject comes to mind. AGM Digital had an A-format microphone. The processing unit had support for additional mono microphones. It automatically adjusted the delay for the spot mikes. Or - was this just a plan, cannot remember. The hard- and software might have been made by Chris Richards. But as said, this was for recording, not playback. Eero ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
Here: SpeakerAngle http://www.audioappsstore.com/ Eero ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
The point of that paper (as I read it, anyway) was not whether the technologies may or may not be available in 2020, but that they would be established and embedded such they they are almost routine, barely noticeable. In the way, for example, that taking a picture using your mobile phone is now routine. It just involves pressing a button. No special (and possibly expensive and otherwise superfluous) kit needs to be attached. You have a speaker which has an intelligent connection to the amp or player, and they talk to each other. You unpack the speakers, plug them in, and press a button. Maybe you won't even need to do that much. And, it has to be ~standard~ so that any player can talk with any speaker. Richard Dobson On 26/09/2013 12:50, Marc Lavallée wrote: Why waiting until 2020? It should be possible with available technologies. A Kinect camera (or two spaced cameras) could be used to detect the positions of the speakers from the listener's point of view, then the same Kinect could be placed in front of the listener to report its listening position. -- Marc Richard Dobson richarddob...@blueyonder.co.uk a écrit : There is still a little time - James Moorer wrote in his paper Audio in the New Millennium (JAES 2000): In 2020 loudspeakers will know where they are. ... ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
Hi, There has been many commercial products for 5.1 based on the notion of self-calibration. The idea that you hold a set-up microphone supplied by the manufacturer at the listening position and then each speaker generates a noise burst/tone/sweep in turn thereby determining distance from listening position and level for phase alignment and frequency dependent gain compensation respectively. See for example http://www.sony.co.uk/product/hcs-home-cinema-receiver/str-dn1030/technical-specifications#tab Best, Gavin On 26 September 2013 05:14, David Worrall worr...@avatar.com.au wrote: Hi David, Thanks for your considered response. I _was_ actually thinking of it autolocating the speakers. And not necessarily just for ambisonics, actually. Some sort of a spectrum analyser/preamplifier device that derived the correct decode/gain controls of the real system acccording to the actual location of the loudspeakers, decode algorithm and your preferred listening spot ... and that self-callibrated each time you turned the system on. Given how difficult it seems to be for billions of people to set up a 5.1 system, surely there must be a market? I'm actually surprised that such a device doesn't already exist. Oh well, back to the stone-age method... David On 23/09/2013, at 9:33 PM, Dave Hunt wrote: Hi, Date: Thu, 19 Sep 2013 21:50:00 +0200 From: David Worrall worr...@avatar.com.au To: Surround Sound discussion group sursound@music.vt.edu Hi All, I'm away from my back-up of this list (*) so please forgive if this has been answered before, but Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? thanks, David Presumably it doesn't have to auto-locate the speakers ?? That would be clever and probably expensive. I have something that was built in MAX/MSP, and can turn it into an application (Mac OS preferred but Windows is probably possible). It is first order only, up to 16 speakers, and based on all the info about good decoders I've found, and can understand and implement. Of course it could be extended to higher orders, once the maths is thought through and the issue of different kinds of W. Haven't done this as most of the people I'm dealing with don't have enough speakers to make it worthwhile or essential. It's basically part of something else which is trying to do all sorts of ambisonic things with 16 inputs from a DAW running on the same computer. So, until higher powered computers become affordable in an income challenged age, processing power has to be carefully used. Increasing the ambisonic order starts to push up the number of audio streams that need handling in a non-linear manner. Such a decoder needs listening to, which means that you have to able to generate something to listen to to assess how well the encode/decode works, something I haven't had time to do above 2nd order. If only there was more time, things got done quicker, or someone was paying for the work by the hour. Ciao, Dave Hunt ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20130926/3ad4f0bf/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- Gavin Kearney PhD, Lecturer in Sound Design Department of Theatre, Film and Television The University of York East Campus, Baird Lane York YO10 5GB, UK Tel: +44 (0)1904 32 5245 Fax: +44 (0)1904 32 5221 http://www.york.ac.uk/tftv/ http://www.york.ac.uk/tftv/staff/gavin-kearney/ EMAIL DISCLAIMER http://www.york.ac.uk/docs/disclaimer/email.htm -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20130926/9683ebf6/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
And, it has to be ~standard~ so that any player can talk with any speaker. Richard Dobson An interesting idea ( ... patents ... ) Ma daughter had to spend the last afternoon before a foreign trip driving into 'th big city' to get a new charger cable for her iPhone-Y, because she couldn't borrow the cable off her sister's iPhone-X because they are totally different. I usually joke to the children: Imagine if each manufacturer of car fitted a unique caravan/trailer connection. I seem to be out-of-date ... some manufacturers change* the coupling with each year's model. Michael *and customers put up with it. . . ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
Hi David, Thanks for your considered response. I _was_ actually thinking of it autolocating the speakers. And not necessarily just for ambisonics, actually. Some sort of a spectrum analyser/preamplifier device that derived the correct decode/gain controls of the real system acccording to the actual location of the loudspeakers, decode algorithm and your preferred listening spot ... and that self-callibrated each time you turned the system on. Given how difficult it seems to be for billions of people to set up a 5.1 system, surely there must be a market? I'm actually surprised that such a device doesn't already exist. Oh well, back to the stone-age method... David On 23/09/2013, at 9:33 PM, Dave Hunt wrote: Hi, Date: Thu, 19 Sep 2013 21:50:00 +0200 From: David Worrall worr...@avatar.com.au To: Surround Sound discussion group sursound@music.vt.edu Hi All, I'm away from my back-up of this list (*) so please forgive if this has been answered before, but Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? thanks, David Presumably it doesn't have to auto-locate the speakers ?? That would be clever and probably expensive. I have something that was built in MAX/MSP, and can turn it into an application (Mac OS preferred but Windows is probably possible). It is first order only, up to 16 speakers, and based on all the info about good decoders I've found, and can understand and implement. Of course it could be extended to higher orders, once the maths is thought through and the issue of different kinds of W. Haven't done this as most of the people I'm dealing with don't have enough speakers to make it worthwhile or essential. It's basically part of something else which is trying to do all sorts of ambisonic things with 16 inputs from a DAW running on the same computer. So, until higher powered computers become affordable in an income challenged age, processing power has to be carefully used. Increasing the ambisonic order starts to push up the number of audio streams that need handling in a non-linear manner. Such a decoder needs listening to, which means that you have to able to generate something to listen to to assess how well the encode/decode works, something I haven't had time to do above 2nd order. If only there was more time, things got done quicker, or someone was paying for the work by the hour. Ciao, Dave Hunt ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20130926/3ad4f0bf/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] , ambi playback configution and calibration
Hi, Date: Thu, 19 Sep 2013 21:50:00 +0200 From: David Worrall worr...@avatar.com.au To: Surround Sound discussion group sursound@music.vt.edu Hi All, I'm away from my back-up of this list (*) so please forgive if this has been answered before, but Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? thanks, David Presumably it doesn't have to auto-locate the speakers ?? That would be clever and probably expensive. I have something that was built in MAX/MSP, and can turn it into an application (Mac OS preferred but Windows is probably possible). It is first order only, up to 16 speakers, and based on all the info about good decoders I've found, and can understand and implement. Of course it could be extended to higher orders, once the maths is thought through and the issue of different kinds of W. Haven't done this as most of the people I'm dealing with don't have enough speakers to make it worthwhile or essential. It's basically part of something else which is trying to do all sorts of ambisonic things with 16 inputs from a DAW running on the same computer. So, until higher powered computers become affordable in an income challenged age, processing power has to be carefully used. Increasing the ambisonic order starts to push up the number of audio streams that need handling in a non-linear manner. Such a decoder needs listening to, which means that you have to able to generate something to listen to to assess how well the encode/decode works, something I haven't had time to do above 2nd order. If only there was more time, things got done quicker, or someone was paying for the work by the hour. Ciao, Dave Hunt ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] ambi playback configution and calibration
-Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of David Worrall [...] Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? [...] The Advanced edition of Rapture3D builds decoders automatically for custom layouts. You need to tell it where the speakers are though. Best wishes, --Richard ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] ambi playback configution and calibration
Le 2013-09-19 15:50, David Worrall a écrit : Is there - on the market, or in other form - a setup system/tool that auto configures a decoder and calibrates an ambisonic playback rig according to the (actual) position of the loudspeakers? I would say the Harpex decoder. http://harpex.net/download.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] ambi playback configution and calibration
On 19/09/2013 20:50, David Worrall wrote: (*) Is there a way of searching across https://mail.music.vt.edu/mailman/private/sursound/? You don't even need to subscribe to the list to search it.. http://news.gmane.org/gmane.comp.audio.sursound http://www.mail-archive.com/sursound@music.vt.edu/maillist.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
