Re: [Sursound] Patents, Serendipity, and Questions

2011-12-22 Thread Fons Adriaensen
On Wed, Dec 21, 2011 at 12:51:45PM -0800, Eric Carmichel wrote: 1. Is there any preferred method of calibrating speakers used in an Ambisonic setup? If you have a decent set of identical speakers there is in general little reason to do this - or at least it's not a priority compared to getting

Re: [Sursound] Patents, Serendipity, and Questions

2011-12-22 Thread Michael Chapman
On Wed, Dec 21, 2011 at 12:51:45PM -0800, Eric Carmichel wrote: 3. I have seen discussion and articles regarding Ambisonics and shelving filters. Any recommendations as to best filter settings based on speaker-to-listener radius? Very few AMB decoders provide both dual-band operation

[Sursound] Patents, Serendipity, and Questions

2011-12-21 Thread Eric Carmichel
Greetings to All, The patent 'finds' are interesting and, as usual, give credence to the expression there's nothing new... Of course, if one looks closely at the cited patents, you'll see that the microphones and associated circuitry mix down to single-channel outputs (or provide a meter

Re: [Sursound] Patents, Serendipity, and Questions

2011-12-21 Thread Michael Chapman
Questions follow: Not answers, but some thoughts that might help, pending any answers ... 1. Is there any preferred method of calibrating speakers used in an Ambisonic setup? I'd look at Jörn Nettingsmeier's paper, and particularly his slides (both PDFs) on digital room correction for