no sub effect on pcm - Blu-ray Forum

iGlide · 08-19-2008, 02:58 PM

when set up as directed for dolby truehd, i get no sound from the sub. bluray is set for 7.1 pcm and reciever is recieving multiple pcm signal. the sub works on bitstream with prologicIIx and all other dolby sources but there is no effect on pcm. lfe is set to o sub crossover is at 80hz and volume is at half on the sub itself. i cannot find any resoulution in the manuals for this. sub is a pinnacle ac100

allstar780 · 08-19-2008, 08:01 PM

are your speakers set to full range or "big" on the reciever? they may be receiving most of the LFE information

iGlide · 08-19-2008, 08:13 PM

i am working with sherwood now to get details on the config as the manual or the osd gui does not make mention of setting the speaker size manually. i also came across this forum article that educated me as well.
http://www.avsforum.com/avs-vb/showthread.php?t=748147

cconne69 · 08-19-2008, 08:14 PM

Quote:

Originally Posted by allstar780

are your speakers set to full range or "big" on the reciever? they may be receiving most of the LFE information

I agree. I had the same problem until I found out that my Sony Reciever sets your front speakers to "Large" when it should be "Small"

RandDawg · 08-19-2008, 08:59 PM

Quote:

Originally Posted by cconne69

I agree. I had the same problem until I found out that my Sony Reciever sets your front speakers to "Large" when it should be "Small"

Pioneer receivers have a setting where they will send the LFE signal to the speakers set to large as well as the sub.

iGlide · 08-19-2008, 09:23 PM

thanks for all the responses and i do believe that this is going to be the case with the large and small speaker option. now if only sherwood knew about this issue. They dont seem to know how, or if its possible to adjust it. they do confirm though that this could be the issue. hmmm

crackinhedz · 08-19-2008, 10:04 PM

in your receiver settings (pg.50 user manual):

HDMI Audio Out = Off

...if that does not solve the issue let me know.

iGlide · 08-19-2008, 10:23 PM

yes the hdmi audio out is set to off

crackinhedz · 08-19-2008, 10:50 PM

quick question...

is your bluray player set to internally decode (LPCM) or let the Receiver decode (Bitstream)?

iGlide · 08-19-2008, 10:57 PM

lpcm

crackinhedz · 08-19-2008, 11:12 PM

in the bluray player settings do you have anything set to "Down-mixed 2ch PCM"?

iGlide · 08-20-2008, 12:59 AM

lol man your good but 2ch downmix is not on either. im gonna owe you a beer. i just got through experiemtning with the "prestige" and moved all kinds of things around and still no effect from the sub on pcm mode. the front mains sounded killer and did produce low end like crazy but that defeats the purpose. the mission continues....

crackinhedz · 08-20-2008, 01:20 AM

Quote:

Originally Posted by blkicevic

lol man your good but 2ch downmix is not on either. im gonna owe you a beer. i just got through experiemtning with the "prestige" and moved all kinds of things around and still no effect from the sub on pcm mode. the front mains sounded killer and did produce low end like crazy but that defeats the purpose. the mission continues....

did you set "SW" in the receiver settings?

iGlide · 08-20-2008, 02:41 AM

sub is set to normal yes but what is killing me is that it plays on everything except pcm or lpcm

crackinhedz · 08-20-2008, 02:52 AM

Quote:

Originally Posted by blkicevic

sub is set to normal yes but what is killing me is that it plays on everything except pcm or lpcm

To me it sounds like the audio is being decoded in the player, but for some reason it is being downmixed to 2 channel stereo which could explain no sound from the subwoofer.

or

perhaps your receiver suffers from an LFE issue with LPCM audio. It is a known issue on quite a few different BD players and Receivers. I tried a goole search of any LFE problems from a fellow sherwood owner. But I found none so this theory is less likely...but still possible.

Trial and error. I'm sure an answer will appear soon enough.

iGlide · 08-20-2008, 04:22 PM

ok so now things are starting to come to light!! i found on several forums that the panasonic bd30 and the bd50 both have lfe issues in lpcm mode. I am waiting on panasonic to contact me with more info on this problem.
oh boy i cant wait to here this!!!
and BTW... thanks crackhead for your time and assistance with troubleshooting! I mean crackinhedz... opps

Why so Serious?

crackinhedz · 08-21-2008, 02:38 AM

I believe the BD30 firmware 2.2 fixed the LFE issue. I was not aware that the BD50 also has an issue.

That sux.

iGlide · 08-21-2008, 02:03 PM

as i recall from my reading, and i may be very off base with my understanding, the firmware fix for the bd30 added a +5 db to the lfe level in the settings bringing the range from -10 to +5. the range on the bd50 is -10 to 0. If i am off on this please educate me ass panasonic has not replied to my request as of yet.

Thanks again,
Ray

08-19-2008, 02:58 PM	#1
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	no sub effect on pcm when set up as directed for dolby truehd, i get no sound from the sub. bluray is set for 7.1 pcm and reciever is recieving multiple pcm signal. the sub works on bitstream with prologicIIx and all other dolby sources but there is no effect on pcm. lfe is set to o sub crossover is at 80hz and volume is at half on the sub itself. i cannot find any resoulution in the manuals for this. sub is a pinnacle ac100

08-20-2008, 04:22 PM	#16
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	ok so now things are starting to come to light!! i found on several forums that the panasonic bd30 and the bd50 both have lfe issues in lpcm mode. I am waiting on panasonic to contact me with more info on this problem. oh boy i cant wait to here this!!! and BTW... thanks crackhead for your time and assistance with troubleshooting! I mean crackinhedz... opps Why so Serious? Last edited by iGlide; 08-20-2008 at 08:16 PM.

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08-19-2008, 08:01 PM	#2
allstar780 Special Member Top ranked HT gallery Top contributor Member since:Mar 2008 Location:Grande Prairie, Alberta Home Theater Gallery:15 Blu-ray collection:115 Blu-ray reviews:2	are your speakers set to full range or "big" on the reciever? they may be receiving most of the LFE information

08-19-2008, 08:13 PM	#3
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	i am working with sherwood now to get details on the config as the manual or the osd gui does not make mention of setting the speaker size manually. i also came across this forum article that educated me as well. http://www.avsforum.com/avs-vb/showthread.php?t=748147

08-19-2008, 09:23 PM	#6
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	thanks for all the responses and i do believe that this is going to be the case with the large and small speaker option. now if only sherwood knew about this issue. They dont seem to know how, or if its possible to adjust it. they do confirm though that this could be the issue. hmmm

08-19-2008, 10:04 PM	#7
crackinhedz Super Moderator Member since:Feb 2007 Home Theater Gallery:10 Blu-ray reviews:8 Trading Score:19	in your receiver settings (pg.50 user manual): HDMI Audio Out = Off ...if that does not solve the issue let me know.

08-19-2008, 10:23 PM	#8
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	yes the hdmi audio out is set to off

08-19-2008, 10:50 PM	#9
crackinhedz Super Moderator Member since:Feb 2007 Home Theater Gallery:10 Blu-ray reviews:8 Trading Score:19	quick question... is your bluray player set to internally decode (LPCM) or let the Receiver decode (Bitstream)?

08-19-2008, 10:57 PM	#10
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	lpcm

08-19-2008, 11:12 PM	#11
crackinhedz Super Moderator Member since:Feb 2007 Home Theater Gallery:10 Blu-ray reviews:8 Trading Score:19	in the bluray player settings do you have anything set to "Down-mixed 2ch PCM"?

08-20-2008, 12:59 AM	#12
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	lol man your good but 2ch downmix is not on either. im gonna owe you a beer. i just got through experiemtning with the "prestige" and moved all kinds of things around and still no effect from the sub on pcm mode. the front mains sounded killer and did produce low end like crazy but that defeats the purpose. the mission continues....

08-20-2008, 02:41 AM	#14
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	sub is set to normal yes but what is killing me is that it plays on everything except pcm or lpcm

08-21-2008, 02:38 AM	#17
crackinhedz Super Moderator Member since:Feb 2007 Home Theater Gallery:10 Blu-ray reviews:8 Trading Score:19	I believe the BD30 firmware 2.2 fixed the LFE issue. I was not aware that the BD50 also has an issue. That sux.

08-21-2008, 02:03 PM	#18
iGlide Active Member Member since:Aug 2008 Location:Biloxi Ms Home Theater Gallery:10 iTunes collection:406	as i recall from my reading, and i may be very off base with my understanding, the firmware fix for the bd30 added a +5 db to the lfe level in the settings bringing the range from -10 to +5. the range on the bd50 is -10 to 0. If i am off on this please educate me ass panasonic has not replied to my request as of yet. Thanks again, Ray

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