Neural Surround Decoder

The DTS Neural Surround Decoder is an up mixing algorithm capable of producing 3.1, 4.1, 5.1, 6.1, and 7.1 surround sound from Neural Surround encoded stereo content. It is widely used in XM satellite radio. Up mixing on normal stereo PCM sources as well as stereo decoded sources such as 2.0 Dolby digital, AAC, MP3, WMA etc, is also possible with the Neural Surround Decoder.



Performance Metrics

MIPS summary:

Code memory (KiB) Data RAM (KiB) Constant Data Tables (KiB) MIPS Average
34.3/25.1 (213xx/214xx) 67.7 5.3 61.6
  • MIPS measured for a 61 output channel configuration, at sampling frequency of 48kHz, optimal memory layout.
  • "Data RAM” for one instance, includes Stack, Scratch, Instance/Stage, Minimum Input and Output Single Buffers.
  • 1 KiB = 1024 Bytes.
  • Input buffer size is 2KiB for 2 input channels and output buffer size is 8KiB for 8 output channels.



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