Is there that much of a difference between DDS 5.1 (AC3) and DTS 5.1?

I was looking to pick up an HD-A3 player, but it supposedly downmixes the audio to from dolby TrueHD to DDS 5.1 via optical. The HD-A2 used to downmix it to DTS 5.1. It something about about cost cutting.





My stereo takes either formats via optical. Apparrently DDS badwidth is 640kb where as DTS is 1.5mb.





I have read that DDS is a more lossy codec than DDS because it uses more compression.





I have listened to WMA's at 128mbs and they sound the same as a 192mbs PM3. WMA is a higher compression rate.





Should I be concerned about the DDS versus DTS or is it not much of a difference if any?





I have an onkyo SR304 receiver in a 5.1 setup.

Is there that much of a difference between DDS 5.1 (AC3) and DTS 5.1?
The player downconverts the Dolby TrueHD to Dolby Digital because an optical connection does not have the bandwidth necessary to carry Dolby TrueHD or DTS MasterAudio. There is a significant difference between TrueHD and DDS because the DDS is much more compressed and there is a notable loss in sound. If you want to use Dolby TrueHD or DTS MasterAudio in ANY player, you'll need to output the singal via either an HDMI 1.3 connection, or through analog outputs for each channel of audio, using the players internal decoder.
Reply:You'll want to find a player (more expensive) that has the "5.1 Analog Output"...All that fancy decoding is done INSIDE the player...Click this link for a diagram: http://www.avtruths.com/uncompressed.htm...





As for who's got better sound, Dolby or DTS, they're still waitin' to figure that one out...Find a DVD that has BOTH soundtracks and switch back and forth a few times...Trust your ears.
Reply:I have never really noticed a difference with the 2 formats. You might be able to notice a difference with a direct AB comparison but that is almost impossible unless you have 2 dvd players playing the same movie on 2 identical sound systems (or you may be able to switch inputs on your receiver but it has to change quickly any long delay between unput selection can in effect "reset" your ears) One gets fed Dolby Digital the other gets the DTS.


I personally have not heard a difference. I have played many of my dual format disks in both formats and have not been able to determine if one is better. Another thing to keep in mind is the source material. you can record something at 396mbs from a worn out record and a cassette tape will sound better. samplng rates and bandwitdh can be really misleading be carefull. Just have a good listen.