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Having audio issues with PS3 playing Blu Ray thru toslink

by Jon Shimamoto / March 2, 2007 11:08 AM PST

I have a PS3 with firmware 1.51, 60GB. I have the HDMI connected to a projector which has no sound capabilities. So I have connected a TOSlink cable from the PS3 to my Denon receiver AVR-3802. I have absolutely no problems with standard DVDs playing the soundtrack, whether it is Dolby Digital 5.1 or DTS 5.1.

When watching BluRay discs, the audio soundtrack will play perfectly fine thru the analog cables from the PS3 and through the TOSlink cable in PCM mode but I am limited to stereo output only.

When switching to bitstream mode and enabling 640kbps DD5.1 or DTS5.1 I will get true surround sound mode. But the soundtrack intermittently cuts out and is replaced by a loud static noise (like a "PSSSHHHHHT") or a shrieking whistling noise. The noise lasts from a split second but can last as long as several seconds and then the soundtrack reappears as if nothing happens. The noise is quite loud, louder than the soundtrack, loud enough where it blew a tweeter in my front speakers (a real bummer)

I have browsed some forums and this seems to have happened to some users but they were unable to resolve the issue. Some users reported that the issue also occurs in the audio from the HDMI connection as well.

Again, to clarify, this only happens with BluRay, not standard DVDs. I also noted that I do not have this problem with "Ice Age 2" but the issue is REALLY bad with "Superman Returns". The discs are definitely not smudged or dirty as I checked them all before inserting into the PS3. I also noted that "Ice Age 2" has a bit rate of 448kbps and "Superman Returns" has a bit rate of 640kbps. The noise does not happen in exactly the same spot of the soundtrack of Superman but usually in the same area.

Someone mentioned that older receivers may not handle the 640mbps signal, since DVDs were speced to a max of 192-448kbps audio signal(depending on format). Is this true?

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I just bought the Sony stand alone blue ray player Even thou it cost so much more than the ps3 Iam not into gaming Anyway It works perefectly using h.d.m.i. and optical audio outputs, anyway check out the sony set up menue and turn on d.d. and d.t.s. and everything else including d.t.s. to the off posistion also in the set up menue you can choise 480. 720 .1080I ,P and auto set to auto hope it works out for you steweeeee

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sorry for your troubles JS
by jostenmeat / April 4, 2008 5:11 AM PDT

Im not going to be able to pinpoint your problem, but I might make a few clarifications.

uncompressed PCM is limited to only 2.0 stereo when using optical. (Not enough bandwidth for multi-ch as with HDMI).

DVDs can definitely handle more than 448 kpbs. 448 is the DD spec I believe on a DVD played thru a DVD player. But DTS on that same disc will already get about 768 (786?) kbps.

Some BDs are more problematic than others, it appears. Now, I've only watched it once, but Sunshine is the only one that provided multiple dropouts for me. If I watched it again, they might not be there.

Some receivers have more sync issues than others. However, I presume you cannot possible be using HDMI with a 3802, correct?

Something is definitely wrong here. Could it be a bum PS3? Im sure you must have the settings right. i recommend you post your problem at the PS3 thread at the BluRay Players sub-forum at AVS.

Good luck.

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same problem
by luisold / October 17, 2010 11:37 PM PDT

I have exactly the same problem as you.
I tried to convert the dts audio to ac3 448kbps, but the problem persists, so it isn?t a dts problem.
I thinks that it is caused by volume level that the movie was recorded , but I noticed that these distortions occours when the audio is blank too.
I?m really disappointed with ps3 audio, in this matter I think that xbox360 is better.
I hope that this helps someone.

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