> this is for the z506 speakers > > or, Michael, what was your set up when you used the X-140's? >
Sorry the èages are ancient. But looking at them now I see a 'next page' link would have been useful ... If you go up a level : 'index page', then you can find all the pages. The 'hardware' and software' pages give most of the info. Michael PS The big hurdle back then was a multi-channel (>=8) soundcard. 'Interesting' unplanned costs included: -installing an electricity socket (220V) in each of the room's four corners (Did it myself, but the cost surprised me!) -audio cabling (as angstfully described on the pages, back then) Good luck > > On Mon, Oct 21, 2013 at 4:35 PM, Matthew Palmer > <palme...@mymail.vcu.edu>wrote: > >> What is needed between the computer & the speakers like how do I get the >> computer to acknowledge each speaker from say this set ( >> http://static.clickbd.com/global/classified/item_img/512646_2_original.jpg/ >> 3.5 >> mm and six channel direct audio cables (RCA cable not included)) as an >> individual channel? >> >> >> On Mon, Oct 21, 2013 at 6:17 AM, Dave Malham >> <dave.mal...@york.ac.uk>wrote: >> >>> Actually, a square or rectangular decoder's outputs are such that if >>> all >>> four outputs are mixed together in equal amounts, the directional >>> components (X and Y) will cancel out automatically leaving just the W >>> - >>> which is generally what would be sent to the sub... >>> >>> Dave >>> >>> >>> On 21 October 2013 01:11, Marc Lavall�e <m...@hacklava.net> wrote: >>> >>> > Matthew Palmer <palme...@mymail.vcu.edu> a �crit : >>> > > I'm wondering if it (4 sets of Logitechs) can give me 3d >>> > > gratification for a little over $200. I know I'm definitely >>> > > sacrificing quality but it will take me ages to save up for a >>> proper >>> > > set-up. >>> > > I don't understand what kind of amplifier would be needed though. >>> > >>> > Yes! 4 small speakers with one sub are enough as a starting point: >>> > I suggest reading "Localization in Horizontal-Only Ambisonic Systems" >>> : >>> > http://www.ai.sri.com/ajh/ambisonics/BLaH1.pdf >>> > >>> > Use a square or rectangular configuration, and drive the sub with the >>> W >>> > ambisonic channel; you can use a multimedia 5.1 kit (with integrated >>> > amplifiers), but the sub should be driven separately, not by a mix of >>> > the 4 decoded speaker channels (that's my comprehension). >>> > For un-amplified speakers, you can use cheap D-class amps. >>> > >>> > > I don't fully understand what cross-over frequency is (it sounds >>> > > obvious though) but maybe by reducing the center channels from the >>> > > set-up , I'd reduce the amount that is happening. >>> > >>> > I would not use the centre channel; there are experimental 5.1 >>> decoders >>> > but I never tried. The cross-over frequency is between the sub-woofer >>> > and the satellites. Ambisonics works well at low frequencies in small >>> > rooms, at least down to the Schroeder frequency (usually around >>> 150Hz, >>> > depending on your room size and acoustic treatment). That's why 300Hz >>> > is a bit high, but it's not catastrophic. >>> > >>> > Ambisonics with height is possible with a "3D7.1" configuration >>> (using >>> > a 7.1 speaker kit). I yet have to try it. >>> > >>> > -- >>> > Marc >>> > >>> > > On Sun, Oct 20, 2013 at 7:12 PM, Charlie Richmond >>> > > <charlie....@gmail.com>wrote: >>> > > >>> > > > On Sun, Oct 20, 2013 at 3:59 PM, Marc Lavall�e >>> <m...@hacklava.net> >>> > > > wrote: >>> > > > >>> > > > > >>> > > > > What matters is rigidity; if a plastic enclosure is rigid >>> > > > > enough (for its size), then it would sound the same than a hard >>> > > > > wood enclosure. In the specific case of the Z506 model from >>> > > > > Logitech, wooden enclosures for the satellites would make no >>> > > > > difference; the drivers, the amps, and the enclosures are too >>> > > > > small to shake. Only the sub-woofer enclosure is made of MDF, >>> for >>> > > > > a reason. >>> > > > > >>> > > > > So, why not using the Z506 5.1 kit from Logitech? "Multimedia" >>> > > > > speakers are primarily designed as computer accessories; some >>> are >>> > > > > probably well made, excluding the one in the MoMA's permanent >>> > > > > collection (unless aesthetic is the most important criteria). I >>> > > > > wouldn't trust its sound quality; it's a bit small unless the >>> > > > > listening distance is less than 2 meters, the centre speaker >>> does >>> > > > > not match the four other satellites, the centre speaker have 2 >>> > > > > mids and the satellites have one mid and one tweeter, and the >>> > > > > cross-over frequency for the sub-woofer is probably near 300Hz, >>> > > > > which is a bit too high. For Ambisonics, I believe that better >>> > > > > quality full-range or coaxial speakers, all matched, should be >>> > > > > preferred. >>> > > > > >>> > > > > I would only such use small multimedia speakers for a very >>> compact >>> > > > > periphonic installation, along with 4 to 8 small sub-woofers >>> for a >>> > > > > supplemental horizontal or periphonic low frequency decoder. >>> > > > > >>> > > > >>> > > > Agreed. That said, the Logitech self powered systems are >>> generally >>> > > > extremely well made and sound very good, imho. >>> > > > >>> > > > C-) >>> > > > -------------- next part -------------- >>> > > > An HTML attachment was scrubbed... >>> > > > URL: < >>> > > > >>> > >>> https://mail.music.vt.edu/mailman/private/sursound/attachments/20131020/73b9a2d1/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/20131020/2bfcc5f5/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 >>> > >>> >>> >>> >>> -- >>> -- >>> 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/20131021/c9492ea9/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/20131021/96e7b750/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
