Many thanks for that priceless info, shame the paper isn't available
: This is described in MAG's 1985 JAES article; look at Appendix A3.1.2 "Simplified UHJ decoding equations using three phase shifters", and particularly at Fig 13. The unsimplified block diagram in Fig. 14 uses four phase shifters. The key was that the simplified design used fewer op-amps (which came in packages of four), and so could be implemented for less money. As Eero pointed out, the AD 7 was cheap and cheerful. The AD 10 was the "proper" decoder. The paper should be in the Ambisonic Motherlode, but I don't see it. You never know, perhaps the Magic Paper Fairy will drop a copy into your inbox. Regards, Martin -- Martin J Leese E-mail: martin.leese stanfordalumni.org Web: http://members.tripod.com/martin_leese/ _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1325 / Virus Database: 1500/3606 - Release Date: 04/30/11 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110430/07fa7855/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound