Xtensa library includes Dolby decoders

Both Dolby Pro Logic decoders are essential sound processing technologies employed in home theatre AV receivers. Dolby Pro Logic II creates a 5.1-channel surround sound experience from any stereo movie, music, TV, or game audio source. Dolby Pro Logic IIx extends the sound experience up to a full 7.1-channel configuration for highly realistic, natural surround sound.

Tensilica's HiFi Audio Engine is a fully programmable processor core optimised for audio applications, with a library of over 50 of the most popular audio software packages. Other Dolby approved packages include: Dolby Digital Decode, Dolby Digital Creator Encode, Dolby Digital Compatible Output Encode, Dolby Digital Plus 5.1 and 7.1-channel Decode, and Dolby TrueHD Decode.

The Dolby Pro Logic II and IIx decoders are available for shipment to all Dolby approved licencees of Tensilica's Diamond Standard 330HiFi or the Xtensa HiFi 2 Audio Engine.