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DTS Proves High Quality Surround Sound Streaming

Transmission of 5.1-channel DTS 96/24 Digital Surround over IP network (July 26, 2004)

DTS (Digital Theater Systems, Inc.) demonstrated the viability of streaming high definition surround sound audio over the Internet in a recent trial with Swedish Radio (SR). Audio mixed live in 5.1-channel surround sound from an outside broadcast was encoded at 24 bit, 96kHz using DTS' Coherent Acoustics codec, and streamed onto the Sprint Network via Internet protocol, at 1.5Mbs - equivalent to full DVD-V and DVB bit rate.

The event marked the first time that DTS Digital Surround has been streamed over an IP network, and proves that high bit rate, high quality surround sound audio can now be streamed using DTS, providing a common delivery format for DVD, DVB and digital cinema.

Ted Laverty, Director of Business Development for DTS, explained, "The exercise arose out of our on-going cooperation with Swedish Radio and their continuing DTS-encoded DVB satellite service. They are experiencing a fast-growing demand for the high quality DTS downloads on their Web site (, and were keen to examine the viability of providing a streaming signal of the same quality. The success of the transmission further establishes DTS as a convergent technology, providing the same high quality, multi-channel audio across the various content delivery channels."

The signal feed from the live concert - also broadcast on SR's DTS satellite transmission - was encoded with a DVB MPEG2 encoder with IP outputs. A DTS signal was streamed using Internet protocol live onto the Sprint Network, and signal was successfully recovered using a proprietary DTS software player designed for the purpose.

The success of the test proves the viability of very high quality audio multicasting over broadband, and points to the evolving potential for IP delivery of digital programming by broadcasters - particularly in Europe where services offering up to 8Mbits connections are starting to come online.

About DTS Consumer Division
DTS is an innovator in the development of multi-channel digital sound solutions for the consumer electronics and professional audio markets, including home A/V, video games and consoles, broadcast, personal computers and mobile and portable audio systems. Today, every major consumer electronics manufacturer supports DTS technology. Addressing the demand for DTS-encoded content worldwide, DTS also offers hardware and software encoders to the professional audio communities, allowing them to produce DTS audio content directly.

About DTS
DTS (Digital Theater Systems, Inc.) (Nasdaq: DTSI) is a digital technology company dedicated to delivering the ultimate entertainment experience. DTS decoders are in virtually every major brand of 5.1-channel surround processors, and there are 280 million DTS-licensed consumer electronics products available worldwide. A pioneer in multi-channel audio, DTS technology is in home theatre, car audio, PC and game console products, as well as 5.1 Music Discs, DVD-Video, DVD-Audio and DVD-ROM software. Additionally, DTS is featured on more than 22,000 motion picture screens worldwide. Founded in 1993, DTS is headquartered in Agoura Hills, California and has offices in the United Kingdom, Japan and China. For further information, please visit


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Related Keywords:DTS, Surround Sound, DTS 96/24 Digital Surround, Digital Theater Systems, Swedish Radio, Coherent Acoustics, Sprint Network, Ted Laverty, DVB MPEG2,


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