Re: [Sursound] B-Format to Auro 3D
No idea? On 5/11/14, 8:16 PM, Kan Kaban wrote: Greetings surround people. I´m looking for a workflow between Soundfield´s ST450 B-format recordings Auro 3D. Barco plugins render from mono / st / 5.1 / 7.1, but I don´t want to loose height info from the Soundfield. I suppose there are some users here that may help. Regards, Roberto. PD: Sorry about last post with wrong subject. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Format to Auro 3D
If I remember correctly the Auro 3D is more or less 2 x 5.1 channels with the upper ring signal multiplexed in to the same channel as a Normal 5.1 signal. The 24 bit are used in a Auro 3D magic way to create a 5.1 signal that can be listened to in a normal surround system. So extracting signals for loudspeakers in a Aura 3D setup is possible with a custom configured decoder for 2 rings ... But how to create the Aura 3D encoded signal is a problem. Just work with a B-format way of working in for example Reaper until extracting the loudspeaker signals in a decoder for rendering. Best Regards Bo-Erik -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Kan Kaban Sent: den 13 maj 2014 08:03 To: Surround Sound discussion group Subject: Re: [Sursound] B-Format to Auro 3D No idea? On 5/11/14, 8:16 PM, Kan Kaban wrote: Greetings surround people. I´m looking for a workflow between Soundfield´s ST450 B-format recordings Auro 3D. Barco plugins render from mono / st / 5.1 / 7.1, but I don´t want to loose height info from the Soundfield. I suppose there are some users here that may help. Regards, Roberto. PD: Sorry about last post with wrong subject. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
[Sursound] parallella board
Hi all. Does anyone have any experience or plans to perform audio-related processing using one of these boards with the Adapteva 16-core coprocessor? http://www.parallella.org It's cheap and low power (RaspberryPi-esque) but seemingly quite capable of significant workloads (especially the upcoming 64-core version). I figured it may be useful for many channel decoding of B-format to speaker feeds, or doing some heavy lifting in FIR calculations for room-equalization, etc. I have in mind echo cancelers and convolving out the room contribution for VC applications. However I don't know enough about chip architecture to know whether this would be a good choice over more conventional (SHARC) DSPs. I see that this is only 32-bit float capable in hardware, whereas math functions in the SHARC ar 40-bit precision. For proper scientific computing, double floats (64-bit) are usually desired, but I'm uncertain whether this applies to the audio domain. Any thoughts? Cheers, JQ -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140513/b1afb20d/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Format to Auro 3D
Our (Blue Ripple Sound's) TOA Decoding plugins include decoders for the Auro-3D layouts, so if you're prepared to work in Reaper or suchlike I'd suggest one of these two signal paths. There are other options, but these seem to give consistently good results: 1. B-Format - TOA Harpex Upsampler - TOA Decoder (Auro-3D 9/10/11.1) 2. B-Format - TOA First Order Injector - TOA Decoder (Auro-3D 9/10/11.1) I find the Harpex path is normally best (this actively unpicks the first order B-Format and recodes it as third order). The first order injector (from the TOA Upmixers plugins) is passive and doesn't produce such sharp imaging; it gently cleans up some artefacts that occur sometimes with first order material. You can achieve the same result with the TOA Manipulators plugins. Of course, while you have the material as TOA, you can do lots of other interesting things to it! Note that the outputs of the TOA Decoders for Auro-3D have 10, 11 or 12 channels (9.1, 10.1 or 11.1). Depending on where the audio is going next, you might need to process it with Auro-Codec or suchlike - these plugins won't do this for you. Best wishes, --Richard -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Bo- Erik Sandholm Sent: 13 May 2014 07:40 To: kanka...@alivecinema.org; Surround Sound discussion group Subject: Re: [Sursound] B-Format to Auro 3D If I remember correctly the Auro 3D is more or less 2 x 5.1 channels with the upper ring signal multiplexed in to the same channel as a Normal 5.1 signal. The 24 bit are used in a Auro 3D magic way to create a 5.1 signal that can be listened to in a normal surround system. So extracting signals for loudspeakers in a Aura 3D setup is possible with a custom configured decoder for 2 rings ... But how to create the Aura 3D encoded signal is a problem. Just work with a B-format way of working in for example Reaper until extracting the loudspeaker signals in a decoder for rendering. Best Regards Bo-Erik -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Kan Kaban Sent: den 13 maj 2014 08:03 To: Surround Sound discussion group Subject: Re: [Sursound] B-Format to Auro 3D No idea? On 5/11/14, 8:16 PM, Kan Kaban wrote: Greetings surround people. I´m looking for a workflow between Soundfield´s ST450 B-format recordings Auro 3D. Barco plugins render from mono / st / 5.1 / 7.1, but I don´t want to loose height info from the Soundfield. I suppose there are some users here that may help. Regards, Roberto. PD: Sorry about last post with wrong subject. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
[Sursound] format
Does anybody know why I am receiving (only from this list and not from any other listservers) postings without any line-breaks? I find them impossible to read. An example is below, although it may well have truncations that impose linebreaks by the time it is redistributed, which will make it even more difficult to understand the drift. David Sat, 10 May 2014 14:51:33 -0600, Charles Veasey charlesjvea...@gmail.com wrote : There are some dead links of my recordings, how do I fix them? Charles Hi Charles. Please send me the broken links... I already created replacement torrent files, but since the Plone CMS have its own virtual file system, I must fix the torrents manually (until I find a way to fix all automatically, hopefully when I'll migrate the web site). Thanks for your help. -- Marc On Sat, May 10, 2014 at 9:33 AM, Marc Lavallée m...@hacklava.net wrote: Hi Jim. I'm the maintainer for Ambisonia. Please contact me in person to fix the problems with your old submissions. The problem with the link you sent is caused by an obsolete torrent file, created on Ambisonicbootlegs (before Ambisonia). I fixed most of them, but a few are still wrong. About Ambisonia: A few years ago I helped to put Ambisonia back online, and part of its system was migrated, but not all of it. The status of Ambisonia is a working archive, and it's still possible to submit new content, but I must fix things manually from time to time. I planned to migrate the system, and i evaluated a few options. So far the best one is still to first upgrade the web site to the latest version of Plone (the content management system used to create Ambisonia), something I was able to do only a few months ago (Plone migrations are difficult). Then I would like to upgrade the submission and download system, fix security problems and revive the wiki. To all Ambisonia users: please don't despair; the U. of York is hosting the server, and I want to upgrade Ambisonia in order to better manage it, at York or elsewhere. New web techniques are much more flexible than 8 years ago. People interested to help or comment can contact me in person; the sursound list is not the best place to discuss this topic. Thanks for your comprehension. -- Marc Le Fri, 09 May 2014 15:54:36 -0500 (CDT), Jim Mastracco acoustic...@verizon.net a écrit : An HTML attachment was scrubbed...URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140509/2ece3684/attachment.html ___ Sursound mailinglist Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ 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/20140510/8d5779d0/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] format
Does anybody know why I am receiving (only from this list and not from any other listservers) postings without any line-breaks? I find them impossible to read. Line breaks is different in each of Mac / Linux / the other one. Just a guess . . . Michael ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] format
I am on Window$ 7. Using Eudora for email. The problem is not in evidence with every posting, but it has been much worse recently. David At 11:39 13-05-14, Michael Chapman wrote: Does anybody know why I am receiving (only from this list and not from any other listservers) postings without any line-breaks? I find them impossible to read. Line breaks is different in each of Mac / Linux / the other one. Just a guess . . . Michael ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] format
I am on Window$ 7. Using Eudora for email. The problem is not in evidence with every posting, but it has been much worse recently. David At 11:39 13-05-14, Michael Chapman wrote: Does anybody know why I am receiving (only from this list and not from any other listservers) postings without any line-breaks? I find them impossible to read. Line breaks is different in each of Mac / Linux / the other one. Just a guess . . . http://en.wikipedia.org/wiki/Line_breaking_character#Representations may help ... or may besides being a wee bit technical also be a pigmented herring ... (!). I have noticed an increasing problem, too, but not with Sursound ... Must be someone more technical than I, out there ... Michael PS, Have sent this direct and via the list ... to see if the two versions vary. Sent from our server (Linux), but the mail software may do 'clever' compensations to try and be âll things to all men' ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] parallella board
That's an interesting board. On one of the expansion port there's one SPDIF link. And it looks like the other ports are interconnections to other boards for building a larger parallel computer. So I guess that one board would be required per 8 channels audio link, and that linking boards together would allow synchronizing as many SPDIF links. But I don't know if the parallel computing capability of interconnected boards would be useful, and how to program them... -- Marc Tue, 13 May 2014 08:59:36 +0200, JQ Adams jqad...@google.com a écrit : Hi all. Does anyone have any experience or plans to perform audio-related processing using one of these boards with the Adapteva 16-core coprocessor? http://www.parallella.org It's cheap and low power (RaspberryPi-esque) but seemingly quite capable of significant workloads (especially the upcoming 64-core version). I figured it may be useful for many channel decoding of B-format to speaker feeds, or doing some heavy lifting in FIR calculations for room-equalization, etc. I have in mind echo cancelers and convolving out the room contribution for VC applications. However I don't know enough about chip architecture to know whether this would be a good choice over more conventional (SHARC) DSPs. I see that this is only 32-bit float capable in hardware, whereas math functions in the SHARC ar 40-bit precision. For proper scientific computing, double floats (64-bit) are usually desired, but I'm uncertain whether this applies to the audio domain. Any thoughts? Cheers, JQ -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140513/b1afb20d/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] old Ambisonia links -
On 05/12/2014 02:19 PM, Michael Chapman wrote: I know you said the List was not the best place for 'helpdesk', but I thought this one might benefit from a wider audience. Was ADSL the deathknell for BitTorrent (for legit usages), and will fibre-optic be its death ? me, too :-D marc, i'd rather mirror the .amb files directly on my server than invest the time to maintain a permanent tracking seeder (which i used to do many years ago, but it kept breaking). let me know if you need the space and/or bandwidth. best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister VDT http://stackingdwarves.net ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] parallella board
Indeed that is an interesting board. However, hidden in a comment trail on the blog they note that there was limited funding for the production run of the 64 processor board. This resulted in higher cost/unit and a very limited quantity being produced. The net of that is that all that were made are already committed, so none with be available for purchase. Michael - Original Message - Subject: [Sursound] parallella board From: JQ Adams jqad...@google.com Date: 5/13/14 1:59 am To: Surround Sound discussion group sursound@music.vt.edu Hi all. Does anyone have any experience or plans to perform audio-related processing using one of these boards with the Adapteva 16-core coprocessor? http://www.parallella.org It's cheap and low power (RaspberryPi-esque) but seemingly quite capable of significant workloads (especially the upcoming 64-core version). I figured it may be useful for many channel decoding of B-format to speaker feeds, or doing some heavy lifting in FIR calculations for room-equalization, etc. I have in mind echo cancelers and convolving out the room contribution for VC applications. However I don't know enough about chip architecture to know whether this would be a good choice over more conventional (SHARC) DSPs. I see that this is only 32-bit float capable in hardware, whereas math functions in the SHARC ar 40-bit precision. For proper scientific computing, double floats (64-bit) are usually desired, but I'm uncertain whether this applies to the audio domain. Any thoughts? Cheers, JQ -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140513/b1afb20d/attachment.html ___ 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/20140513/e82d6e8c/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Format to Auro 3D
Bo-Erik Sandholm wrote: If I remember correctly the Auro 3D is more or less 2 x 5.1 channels with the upper ring signal multiplexed in to the same channel as a Normal 5.1 signal. The 24 bit are used in a Auro 3D magic way to create a 5.1 signal that can be listened to in a normal surround system. Was/is this not Auro-3D Octopus? It might be magic or not :-) Backward-compatibility to 5.1, which is nice. (Using the least significant bits beyond 20th bit, or maybe beyond 18th bit...) Best, Stefan So extracting signals for loudspeakers in a Aura 3D setup is possible with a custom configured decoder for 2 rings ... But how to create the Aura 3D encoded signal is a problem. Just work with a B-format way of working in for example Reaper until extracting the loudspeaker signals in a decoder for rendering. Best Regards Bo-Erik -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Kan Kaban Sent: den 13 maj 2014 08:03 To: Surround Sound discussion group Subject: Re: [Sursound] B-Format to Auro 3D No idea? On 5/11/14, 8:16 PM, Kan Kaban wrote: Greetings surround people. I´m looking for a workflow between Soundfield´s ST450 B-format recordings Auro 3D. Barco plugins render from mono / st / 5.1 / 7.1, but I don´t want to loose height info from the Soundfield. I suppose there are some users here that may help. Regards, Roberto. PD: Sorry about last post with wrong subject. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Format to Auro 3D
Richard, how do I create a multi-track on Reaper?. I can´t seem to find that. I´m figuring a path from Protools 11 to reaper or vice-versa. Totalmix mixer from RME (fireface 800) can send audio from one program to another with a little trick. So I could send the final Auro 3D mix from Protools to Reaper for your plugin to encode binaural, and check the 3D mix on headphones, for example. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Format to Auro 3D
I'm not sure what you're asking. Is it how to set the track channel count in Reaper? We have guides on this in the TOA docs, but from your email I'm guessing you're using the HS plugins. Please let me know about else like this that's unclear - it's always good to know what to add to our docs! In the main Reaper track view, click the track I/O button. Then change the Track Channels number. To anything up to 64 - Avid have catching up to do! Is that what you meant? Interesting re the RME. We use their stuff but I wasn't aware if that. Thanks! Have fun, --Richard On 13 May 2014, at 18:54, Kan Kaban kanka...@alivecinema.org wrote: Richard, how do I create a multi-track on Reaper?. I can´t seem to find that. I´m figuring a path from Protools 11 to reaper or vice-versa. Totalmix mixer from RME (fireface 800) can send audio from one program to another with a little trick. So I could send the final Auro 3D mix from Protools to Reaper for your plugin to encode binaural, and check the 3D mix on headphones, for example. ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] old Ambisonia links -
On 2014-05-13, Jörn Nettingsmeier wrote: marc, i'd rather mirror the .amb files directly on my server than invest the time to maintain a permanent tracking seeder (which i used to do many years ago, but it kept breaking). let me know if you need the space and/or bandwidth. If you give me the permission, I could ask some Pirate Party people about establishing a tracker too. -- Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
