Re: [Sursound] parallella board
http://www.altera.com/literature/an/an487.pdf Design examples on how to doit... -Original Message- From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Dave Malham Sent: den 21 maj 2014 10:28 To: Surround Sound discussion group Subject: Re: [Sursound] parallella board As it has an SPI interface, it should be usable with multichannel DAC's. The main chip also has a lot of FPGA which could be tasked with providing more SPI interfaces. A very interesting board indeed. Dave On 13 May 2014 15:51, mgra...@mstvp.com wrote: 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 ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Fromat microphone
Dave Malham wrote: Good grief - you printed the metal frame? I thought that was still very expensive? Dave It would be cheaper to print the capsules. 'Cos you would need less material than for the frame... :-) Stefan On 5 May 2014 22:15, Hector Centeno hcen...@gmail.com wrote: No, the capsules are not printed (it would be great if I could!). The white holder and metal frame where 3D printed. Best, Hector On May 5, 2014 2:00 PM, Stefan Schreiber st...@mail.telepac.pt wrote: Hector Centeno wrote: Hello all, I've been experimenting with making a native B-Format mic using 3D printed parts. I've done some recordings with it and I was wondering if people here with ambisonic playback systems could give one of them a try. Any comments will be very appreciated. A photo of the mic: http://www.hcenteno.net/extras/b-format_mic.jpg Link to binaural decode and link to B-Format file (in the description): https://soundcloud.com/hcenteno/wow-what-is-that-papa Change the level of the W channel to taste (the W capsule is more sensitive than the rest so I had to reduce it to what sounded good to me). Thanks and best wishes, Hector Really cool, and very creative! Which parts did you actually print? You can't print the capsules itself, can you? It is probably not just me who would like to ask this question... Best regards, Stefan ___ 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/20140505/fb3d2d02/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/20140521/d71be264/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Fromat microphone
Hi Dave, Yes, the metal frame was 3D printed. It costed about $28. Best, Hector Dave Malham wrote: Good grief - you printed the metal frame? I thought that was still very expensive? Dave It would be cheaper to print the capsules. 'Cos you would need less material than for the frame... :-) Stefan On 5 May 2014 22:15, Hector Centeno hcen...@gmail.com wrote: No, the capsules are not printed (it would be great if I could!). The white holder and metal frame where 3D printed. Best, Hector On May 5, 2014 2:00 PM, Stefan Schreiber st...@mail.telepac.pt wrote: Hector Centeno wrote: Hello all, I've been experimenting with making a native B-Format mic using 3D printed parts. I've done some recordings with it and I was wondering if people here with ambisonic playback systems could give one of them a try. Any comments will be very appreciated. A photo of the mic: http://www.hcenteno.net/extras/b-format_mic.jpg Link to binaural decode and link to B-Format file (in the description): https://soundcloud.com/hcenteno/wow-what-is-that-papa Change the level of the W channel to taste (the W capsule is more sensitive than the rest so I had to reduce it to what sounded good to me). Thanks and best wishes, Hector Really cool, and very creative! Which parts did you actually print? You can't print the capsules itself, can you? It is probably not just me who would like to ask this question... Best regards, Stefan ___ 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/20140505/fb3d2d02/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/20140521/d71be264/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/20140521/2b348b36/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Fromat microphone
Hector, That's a great price for 3D printing in metal. What company did you use? Thanks, Conor On Wed, May 21, 2014 at 2:16 PM, Hector Centeno hcen...@gmail.com wrote: Hi Dave, Yes, the metal frame was 3D printed. It costed about $28. Best, Hector Dave Malham wrote: Good grief - you printed the metal frame? I thought that was still very expensive? Dave It would be cheaper to print the capsules. 'Cos you would need less material than for the frame... :-) Stefan On 5 May 2014 22:15, Hector Centeno hcen...@gmail.com wrote: No, the capsules are not printed (it would be great if I could!). The white holder and metal frame where 3D printed. Best, Hector On May 5, 2014 2:00 PM, Stefan Schreiber st...@mail.telepac.pt wrote: Hector Centeno wrote: Hello all, I've been experimenting with making a native B-Format mic using 3D printed parts. I've done some recordings with it and I was wondering if people here with ambisonic playback systems could give one of them a try. Any comments will be very appreciated. A photo of the mic: http://www.hcenteno.net/extras/b-format_mic.jpg Link to binaural decode and link to B-Format file (in the description): https://soundcloud.com/hcenteno/wow-what-is-that-papa Change the level of the W channel to taste (the W capsule is more sensitive than the rest so I had to reduce it to what sounded good to me). Thanks and best wishes, Hector Really cool, and very creative! Which parts did you actually print? You can't print the capsules itself, can you? It is probably not just me who would like to ask this question... Best regards, Stefan ___ 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/20140505/fb3d2d02/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/20140521/d71be264/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/20140521/2b348b36/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- VisiSonics Corporation 387 Technology Dr. College Park, MD 20742 www.visisonics.com -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140521/941767c1/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] WFS systems
P.S. I think Disney world/land have one in the haunted house... On 21/05/2014, Augustine Leudar gustar...@gmail.com wrote: I have on here in Ireland - a humble 32 channel one - though I often put the speakers in many different configurations and it is without a name. Also te University of Salford has a good one as do the guys who make soundscape renderer (I think) On 18/05/2014, Andres Cabrera mantaray...@gmail.com wrote: Hi, I'm wondering if anyone has compiled a list of research WFS systems. The TU Berlin and the Game of Life systems come immediately to mind, but before starting to dig, I wanted to know if someone has already done this list. Also of interest could be companies working on commercial WFS systems. Thanks! Andrés -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140518/aede20ba/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- 07812675974 -- 07812675974 ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] WFS systems
oh and IRCAM - IRCAM have a really good one I hear (and one day hope to actually hear) On 21/05/2014, Augustine Leudar gustar...@gmail.com wrote: P.S. I think Disney world/land have one in the haunted house... On 21/05/2014, Augustine Leudar gustar...@gmail.com wrote: I have on here in Ireland - a humble 32 channel one - though I often put the speakers in many different configurations and it is without a name. Also te University of Salford has a good one as do the guys who make soundscape renderer (I think) On 18/05/2014, Andres Cabrera mantaray...@gmail.com wrote: Hi, I'm wondering if anyone has compiled a list of research WFS systems. The TU Berlin and the Game of Life systems come immediately to mind, but before starting to dig, I wanted to know if someone has already done this list. Also of interest could be companies working on commercial WFS systems. Thanks! Andrés -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140518/aede20ba/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- 07812675974 -- 07812675974 -- 07812675974 ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Fromat microphone
Hi Conor, It was www.shapeways.com You can make your uploaded models available to others. If the mic proves to be useful I'll make the parts public so others can order them directly. Best, Hector On May 21, 2014 2:28 PM, Conor Mulvey cono...@visisonics.com wrote: Hector, That's a great price for 3D printing in metal. What company did you use? Thanks, Conor On Wed, May 21, 2014 at 2:16 PM, Hector Centeno hcen...@gmail.com wrote: Hi Dave, Yes, the metal frame was 3D printed. It costed about $28. Best, Hector Dave Malham wrote: Good grief - you printed the metal frame? I thought that was still very expensive? Dave It would be cheaper to print the capsules. 'Cos you would need less material than for the frame... :-) Stefan On 5 May 2014 22:15, Hector Centeno hcen...@gmail.com wrote: No, the capsules are not printed (it would be great if I could!). The white holder and metal frame where 3D printed. Best, Hector On May 5, 2014 2:00 PM, Stefan Schreiber st...@mail.telepac.pt wrote: Hector Centeno wrote: Hello all, I've been experimenting with making a native B-Format mic using 3D printed parts. I've done some recordings with it and I was wondering if people here with ambisonic playback systems could give one of them a try. Any comments will be very appreciated. A photo of the mic: http://www.hcenteno.net/extras/b-format_mic.jpg Link to binaural decode and link to B-Format file (in the description): https://soundcloud.com/hcenteno/wow-what-is-that-papa Change the level of the W channel to taste (the W capsule is more sensitive than the rest so I had to reduce it to what sounded good to me). Thanks and best wishes, Hector Really cool, and very creative! Which parts did you actually print? You can't print the capsules itself, can you? It is probably not just me who would like to ask this question... Best regards, Stefan ___ 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/20140505/fb3d2d02/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/20140521/d71be264/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/20140521/2b348b36/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -- VisiSonics Corporation 387 Technology Dr. College Park, MD 20742 www.visisonics.com -- next part -- An HTML attachment was scrubbed... URL: https://mail.music.vt.edu/mailman/private/sursound/attachments/20140521/941767c1/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/20140521/2a3b22b9/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
Re: [Sursound] B-Fromat microphone
Last time I looked at something like that, they were talking hundreds Dave On 21 May 2014 19:16, Hector Centeno hcen...@gmail.com wrote: Hi Dave, Yes, the metal frame was 3D printed. It costed about $28. Best, Hector Dave Malham wrote: Good grief - you printed the metal frame? I thought that was still very expensive? Dave It would be cheaper to print the capsules. 'Cos you would need less material than for the frame... :-) Stefan On 5 May 2014 22:15, Hector Centeno hcen...@gmail.com wrote: No, the capsules are not printed (it would be great if I could!). The white holder and metal frame where 3D printed. Best, Hector On May 5, 2014 2:00 PM, Stefan Schreiber st...@mail.telepac.pt wrote: Hector Centeno wrote: Hello all, I've been experimenting with making a native B-Format mic using 3D printed parts. I've done some recordings with it and I was wondering if people here with ambisonic playback systems could give one of them a try. Any comments will be very appreciated. A photo of the mic: http://www.hcenteno.net/extras/b-format_mic.jpg Link to binaural decode and link to B-Format file (in the description): https://soundcloud.com/hcenteno/wow-what-is-that-papa Change the level of the W channel to taste (the W capsule is more sensitive than the rest so I had to reduce it to what sounded good to me). Thanks and best wishes, Hector Really cool, and very creative! Which parts did you actually print? You can't print the capsules itself, can you? It is probably not just me who would like to ask this question... Best regards, Stefan ___ 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/20140505/fb3d2d02/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/20140521/d71be264/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/20140521/2b348b36/attachment.html ___ 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/20140522/6b51990b/attachment.html ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
