comparing dolby digital to high def audio - Blu-ray Forum

richterbon23 · 03-17-2008, 03:48 AM

i want to show a comparison between the normal dolby digital track and a pcm uncompressed track on a movie. what settings do i need to change in order to get this right? i have the ps3 and the onkyo 705.

krazeyeyez · 03-17-2008, 03:57 AM

and what movie with scene would you suggest to use during comparison?

paulyg · 03-17-2008, 03:58 AM

I just switch back and forth between the them in the disc menu, and the difference is

paulyg · 03-17-2008, 04:02 AM

Cars and casino royal are great to show off the difference

Big Daddy · 03-17-2008, 04:16 AM

Quote:

Originally Posted by richterbon23

i want to show a comparison between the normal dolby digital track and a pcm uncompressed track on a movie. what settings do i need to change in order to get this right? i have the ps3 and the onkyo 705.

The easy way is to change the settings in the player/receiver menus. However, a fun way is to connect your PS3 to the receiver with an HDMI cable and listen to uncompressed sound on a Blu Ray movie. Then connect the PS3 to the receiver with an Optical cable and listen to Dolby Digital or DTS Digital. I realize that this is a bit tedious, but it has the advantage of helping you understand the difference between the cables as far as uncompressed sound is concerned.

I also recommend that you read my thread on "Home Theater Audio CODECs",
https://forum.blu-ray.com/showthread.php?t=41820 .

Pay attention to the conclusions at the end.

richterbon23 · 03-17-2008, 04:39 AM

so just changing the tracks in the menu will work. i don't have to switch it between bitstream for the dolby digital and linear pcm for the uncompressed track?

ryoohki · 03-17-2008, 03:26 PM

Quote:

Originally Posted by richterbon23

so just changing the tracks in the menu will work. i don't have to switch it between bitstream for the dolby digital and linear pcm for the uncompressed track?

If you have a PS3 yes because otherwise you'll get Dolby Digital Decoded by the PS3 at -4db less than PCM. And PCM is louder than DD already so imagine the gap..

Tyler2106 · 03-17-2008, 03:51 PM

I believe it is the triangle button that will bring up a PS3 menu deal without stopping the movie...after that comes up try to find that icon that is a music note...click on that and that will toggle LPCM and DD...there is quiet a difference between the two...

crackinhedz · 03-18-2008, 02:25 AM

Press the

Triangle button and go to A/V Settings

03-17-2008, 03:48 AM	#1
richterbon23 Senior Member Member since:Sep 2007 Home Theater Gallery:7 4K collection:266 Blu-ray collection:685 Trading Score:22	comparing dolby digital to high def audio i want to show a comparison between the normal dolby digital track and a pcm uncompressed track on a movie. what settings do i need to change in order to get this right? i have the ps3 and the onkyo 705.

Similar Threads
thread	Forum	Thread Starter	Replies	Last Post
Difference between Dolby Digital and Dolby Tru HD Audio??	Audio Theory and Discussion	JrCT0091	5	04-14-2009 03:55 PM
Dolby Digital Plus and DTS-HD High Resolution Audio?	Audio Theory and Discussion	DRC72	14	03-08-2009 09:11 PM
High-Def Audio Question!!!!!	General Chat	PS34EVER	10	12-02-2007 08:57 PM
High Def Audio Question	Home Theater General Discussion	Zotar	9	10-24-2007 11:27 AM
Is DD5.1 High Def audio? Vote	General Chat	GTP	6	09-05-2007 02:34 AM

03-17-2008, 03:57 AM	#2
krazeyeyez Blu-ray Samurai Member since:Dec 2007 Location:the guy on the couch Home Theater Gallery:18 Blu-ray collection:287 Blu-ray reviews:4	and what movie with scene would you suggest to use during comparison?

03-17-2008, 03:58 AM	#3
paulyg Active Member Top ranked HT gallery Member since:Sep 2007 Location:Indiana Home Theater Gallery:17 Blu-ray collection:268	I just switch back and forth between the them in the disc menu, and the difference is

03-17-2008, 04:02 AM	#4
paulyg Active Member Top ranked HT gallery Member since:Sep 2007 Location:Indiana Home Theater Gallery:17 Blu-ray collection:268	Cars and casino royal are great to show off the difference

03-17-2008, 04:39 AM	#6
richterbon23 Senior Member Member since:Sep 2007 Home Theater Gallery:7 4K collection:266 Blu-ray collection:685 Trading Score:22	so just changing the tracks in the menu will work. i don't have to switch it between bitstream for the dolby digital and linear pcm for the uncompressed track?

03-17-2008, 03:51 PM	#8
Tyler2106 Active Member Member since:Mar 2008 Location:Nebraska	I believe it is the triangle button that will bring up a PS3 menu deal without stopping the movie...after that comes up try to find that icon that is a music note...click on that and that will toggle LPCM and DD...there is quiet a difference between the two...

03-18-2008, 02:25 AM	#9
crackinhedz Super Moderator Member since:Feb 2007 Home Theater Gallery:10 Blu-ray reviews:8 Trading Score:19	Press the Triangle button and go to A/V Settings

Best Blu-ray Movie Deals