| NEWSLETTER The latest news from Sound & Communications, for more than 50 years. |
July 14, 2010 |
| 1394 TRADE ASSOCIATION SPECS AFFECT ANALOG ‘SUNSET,’ OTHER ISSUES The 1394 Trade Association (Mukilteo WA) issued a trio of new specifications focused on video compression, audio and music transmission, and set-top-box functionality. The revised BT.601 specification on the transport of uncompressed or compressed video addresses the upcoming analog “sunset” directive that applies January 1, 2011, to new Blu-ray products. The “image constraint token” eliminates the potential for pirated unencrypted video. With this revision, BT.601 has been updated with the token for use with Blu-ray players. Data in the 4:2:2 format of ITU-R BT.601 includes compatible extensions to the format for the higher and lower resolutions of other commonly used video resolutions over 1394. The data formats for the encapsulation of video data are compatible with those specified by IEC 61883-1. The specification provides a list of compression codes controlled by the 1394 Trade Association and a reference to one video compression codec, minimum, to assure interoperability and bounded implementation complexity. For details, go to www.1394ta.org/developers/specifications/2006020.html. The Trade Association’s USA Set Top Box Test Specification Revision 1.0 defines a set of tests to verify the functionality of the 1394 interface as defined in the Federal Communications Commission (FCC) mandate for a functional 1394 interface in the STB. The standard defines a set of tests that, when executed, will verify that a USA Set Top Box has correctly implemented all the required functionality. Details are available at www.1394ta.org/developers/specifications/2008003.html. A new version of the Audio Music Data Transmission Protocol (v 2.2) addresses multichannel audio formats for Blu-ray. It supports all popular surround configurations, like 5.1 and 7.1, and is extensible to 32 channels of surround. The new version also addresses the analog sunset directive, and describes a protocol for the transmission of audio and music data over IEEE Std 1394-1995 or later, including the transport of IEC 60958 digital format, raw audio samples and MIDI data. The specification includes excerpts from IEC 61883-6, the improved version of 1394 TA specification "Audio and Music Data Transmission Protocol V1." Details are at www.1394ta.org/developers/specifications/2009013.html. |
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PLASA AND ESTA VOTE TO MERGE |
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Yamaha Commercial Audio To Hold First Audioversity Expos Yamaha Commercial Audio Systems, Inc. has announced Audioversity, a series of regional expos. The first Expo will take place at Soundcheck Nashville (740 Cowan Street), August 11-12. The specialized event is catered toward audio professionals and all those interested in gaining in-depth knowledge and hands-on experience of any and everything Yamaha Commercial Audio and NEXO. Audioversity will feature digital mixer training seminars, panel discussions with leading industry professionals, NEXO and Yamaha speaker listening demos featuring live music, hands-on line array rigging demonstrations, acoustic prediction software presentations, clinics featuring audio networking, portable sound applications from small to large, and systems solutions. The Yamaha state-of-the-art Rolling Showroom will also make a special appearance. There will be plenty of time for Q&A with knowledgeable experts on all things Yamaha Commercial Audio and NEXO. Attendees may also enter a drawing for a chance to win one of two LS9-16 Digital Mixing Consoles*. Additional surprises are also in store. Register now at www.audioversityexpo.com and check back often for This event is free-of-charge and open to the audio community. For those attending from out-of-town, hotel recommendations can also be found on the website (http://www.yamahaca.com). |
INFOCOMM PARTNERS WITH PAMA, PROVIDING MANAGEMENT SERVICES |
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a-Live™ Multisource/Multizone Audio System Speco Technologies a-live™ multi-source/multizone audio systems are 6 source/6 zone with 20W per channel power, local keypad controlled, networked audio distribution systems with some very different features:
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BICSI, INFOCOMM SIGN FRIENDSHIP AGREEMENT LOGITECH INTERNATIONAL ACQUIRES PARADIAL AS TESTA COMMUNICATIONS ANNOUNCES NEW IT/AV REPORT EDITOR
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