1. Additional requirements of DRA audio codec identified by IEC 61937-12

2. 2 Contents DRA standard and PT 61937-12 Milestone of IEC 61937-12 Why we plan to standardize a DRA audio receiver Draft Schedule

3. 3 DRA standard and PT 61937-12 Milestone of IEC 61937-12 Why we plan to standardize a DRA audio receiver Draft Schedule

4. 4 DRA （ Digital Rise Audio ） standard DRA standard  Name ：《 Specification for Multichannel Digital Audio Coding Technology 》  Number ： GB/T 22726-2008  Issued date ： Dec 22, 2008  Drafters ： Digital Rise Technology Co., Ltd. (DRT); Digital Wave Co., Ltd. (DWC); CESI; China Hualu  Used in the fields of: BD - Blu-ray Disc, DTV, CMMB etc. Fig. 1

5. 5 DRA standard and IEC 61937-12 Fig. 2

6. 6 DRA standard and PT 61937-12 Milestone of IEC 61937-12 Why we plan to standardize a DRA audio receiver Draft Schedule

7. 7 Time point of IEC 61937-12 Fig. 3

8. 8 DRA standard and PT 61937-12 Milestone of IEC 61937-12 Why we plan to standardize a DRA audio receiver Draft Schedule

9. 9 (Pre) Standards supporting DRA technology No.Name organization Time point 1 System Description Blu-ray Disc Read-Only Format Part3 Audio Visual Basic Specifications Version 2.3 BDA2009-3 2 IEC 61937-12: Digital audio - Interface for non-linear PCM encoded audio bitstreams applying 60958 - Part 12: Non-linear PCM bitstreams according to the DRA formats IEC2008-6-16 3 RTP Payload Format for DRA Audio IETF2009-4-9 4 MIME media type Audio/Vendor Tree – Vnd.dra IANA2009-4-9 5 A DTV Profile for Uncompressed High Speed Digital Interfaces （ CEA-861.1 ） CEA2010 6 DRA Elementary Streams in the MPEG-2 Multiplex SMPTE2008-02-25 7 MP4 File Format for DRA Audio MP4REG2008-12-20 Table. 1

10. 10 DRA standard and PT 61937-12 Milestone of IEC 61937-12 Why we plan to standardize a DRA audio receiver Draft Schedule

11. 11 Time plan for DRA receiver proposal CN-NC evaluate DRA receiver proposal Jul. 2010 if accepted NP document Sep. 2010 Date of Circulation (NP) Oct. 2010 if accepted The first CD Apr. 2011 IS Sep. 2012

12. 12 Thanks