DTS Audio bugs

  • Thread starter BradKinder
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BradKinder

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BRADKINDER
I experience strange pops and noises that coincide with actions in the game when the audio settings are at 5.1 DTS. I use an optical digital cable for audio. I've since changed the PS3's settings to output Dolby Digital 5.1 instead, and now the sound is fine. I watch Blu-rays and probably other games without any problem with DTS checked, so I'm assuming this is a bug in GT5.

Does anyone else get this problem? It bugs me that now I'll have to change the audio settings every time I want to get DTS from a blu-ray.
 
No. The pops (bass-y pops) and noises I was hearing did not happen when I hit the brakes. They would happen sometimes in the menus, or from the chase-cam view. Probably everywhere, every now and then.

Anybody out there playing GT5 with DTS audio output? You can check in the options menu under audio to see what format GT5 is putting out. Are there audio bugs for you?

Another question: Will there be any difference in quality between DTS and Dolby Digital in GT5? Both are 48khz. I'm ignorant of the differences between the two formats.
 
Could be a machine in yr hoise using alot of electricity and therefore sending a pop into the speaker set. I have it at night when laundry machine and the dishwasher are on.
 
Mubble
Got this too when running DTS. Not experienced it with Dolby Digital Pro Logic.
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BUG CONFIRMED!

Now, how do we let Polyphony know about it? It's sad that on my nice surround sound high-def entertainment system GT5 has a bunch of horrible sound bugs that only go away if I limit the capabilities of the audio output in the PS3 settings.
 
BradKinder
It's sad that on my nice surround sound high-def entertainment system GT5 has a bunch of horrible sound bugs that only go away if I limit the capabilities of the audio output in the PS3 settings.
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If you have a high-end system, why not use a compressionless format instead of DTS or DD?
 
Judging from this thread, no DTS because apparently it's buggy. That leaves DD if you want a compressed format. Use an uncompressed format if possible (not sure if your set supports it).
 
I've heard it to a few times using linear PCM. I thought someone ws at the door, but it was my sub making a quick popping sound. I think it has only done it during the menu screen, but I'm not sure. I probably wouldn't notice it during racing if it did happen.
 
Never had a problem using DTS 96/24. Make sure the speaker configuration is not set to Auto in the sound settings of the options. You'll get weird things happening like exaggerated doppler effects and sounds stopping completely. I use Logitech Z-5500 speakers connected via digital optical cable.
 
DTS 96/24 ?? I didn't know any games supported that - or have I missed a PS3 setting to enable it ?

I have a relatively high-end (if old) Pioneer 59TXi + 7.1 speakers and I use DTS with GT5 and not had any pops etc.
 
I am using (or at least tried to) the earforce DDS 5.1 with headphones --- however the background pops/snaps made this simply unusable. Don't blame PD as much as turtle beach and compatibility with GT5. Back to basic stereo headphones --- works well enough.
 
Buckster
DTS 96/24 ?? I didn't know any games supported that - or have I missed a PS3 setting to enable it ?

I have a relatively high-end (if old) Pioneer 59TXi + 7.1 speakers and I use DTS with GT5 and not had any pops etc.
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I think DTS bitstream is the best audio decoder so I was pleasantly surprised to see my receiver saying this was what was being output. My system setting for sampling rate is 48.1/96.2/176.4 kHz (or whatever it is) if that helps.
 
NLxAROSA
If you have a high-end system, why not use a compressionless format instead of DTS or DD?
Click to expand...

It was high end 10 years ago. It supported DTS when dvds were still new.;) Could you tell me more about uncompressed formats? I thought the only way ps3 did 5.1/7.1 was through DD or DTS? Isn't DTS uncompressed anyways though? Or is it just not lossy... or something. I don't really know.

My Surround sound (amplifier?) whateveritscalled is a big box that says technics that I know supports Dolby Digital, Dolby DTS, Dolby Pro-Logic (II?), stereo, and I'm pretty sure it only has outputs for 5 satellites and 1 sub. I can go find the manual and get the specifics if you want, but I don't think this is something that supports anything more than what dvd was designed to carry. Which I think means no 96 (khz?) / 24(-bit?).

BruceT5
What is the best audio setting to use?

Im using an optical cable, is it DTS, Dolby? etc?
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DTS replaced Dolby Digital when movies went from dvd to blu-ray, so I'm guessing DTS.

bevo
I've heard it to a few times using linear PCM. I thought someone ws at the door, but it was my sub making a quick popping sound. I think it has only done it during the menu screen, but I'm not sure. I probably wouldn't notice it during racing if it did happen.
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You would hear it if you changed views, or right before a race almost every time.

ApparitionLOD
Never had a problem using DTS 96/24. Make sure the speaker configuration is not set to Auto in the sound settings of the options. You'll get weird things happening like exaggerated doppler effects and sounds stopping completely. I use Logitech Z-5500 speakers connected via digital optical cable.
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Even when I set the audio option in GT5 to 5.1 surround, I still got the exaggerated doppler effects, ect. It was weird echoing in the voice during license test examples and other cut scenes. Along with the bass pops (in my satellite speakers, in addition to the sub). I only get the game to sound right after I go to the optical sound settings in the XMB and de-select DTS 5.1 from the list.
 
This happened to me last night for the first time. I was playing Arcade and immediately following the race the sound started looping and popping and stayed that way through the replay. It happened twice in a row at the end of two different races with different soundtracks. Horrible! I haven't noticed this happening in GT mode yet however. My receiver is a two year old Pioneer that has 7.1 DTS decoding via HDMI but my speaker setup is only 5.1. I'm running the "Small Theater" option in the settings because it sounded better than the large one. I believe I'm doing DTS 5.1 decoding but I might try 7.1 decoding and let my receiver map the speakers correctly rather than the game. I'm a bit of an A/V stickler so this is simply not acceptable for my speakers to be popping.
 
Toronado
Neither do I.
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I think alot of people inhere use the logitech speakerset 530 or something. If you check reviews from that speakerset, it gives to much bass AND pops noises on DTS, on a pc, on hifi, on ps3, everywhere... It's not the game guys!!
 
BradKinder
It was high end 10 years ago. It supported DTS when dvds were still new.;) Could you tell me more about uncompressed formats? I thought the only way ps3 did 5.1/7.1 was through DD or DTS? Isn't DTS uncompressed anyways though? Or is it just not lossy... or something. I don't really know.
Click to expand...

You can only get uncompressed surround sound from the PS3 through an HDMI cable using Linear PCM as far as I know. It might support DTS Master and Dolby HD now over optical, but it didn't when the system first came out. Linear PCM doesn't sound nearly as good as a bitstream audio like DTS in my opinion. So many different effects can be done through bitstreaming that a linear stream can't do.

There are lossless codecs that stream audio via bitstreaming where none of the waveform is lost when transcoding. Pulse code modulation transcodes the audio waveform directly as pulses at certain timeframes when the signal frequency is transmitted from the receiver to the speakers. Of course linear means there can be no variation in the modulation, meaning no variance to project surround effects. The speakers just project whatever frequency is sent to it.

DTS-HD Master Audio
Dolby TrueHD
Linear pulse-code modulation

DTS is the best in my opinion. Dolby has gotten better, but it doesn't seem to have the same range and depth that DTS delivers. In fact I won't purchase a movie on Blu-ray unless it has audio in DTS-HD now. They're just too expensive to not have standards when making a purchase decision.
 
Bradkinder, yes I experience this in gt mode, it seems to come from the rear surrounds on my setup. Yet to replicate the issue in dolby digital 5.1

I also use a opticat for the audio portion of my setup.

Sounds like a bug, hopefully PD has a fix.....
 
ApparitionLOD
You can only get uncompressed surround sound from the PS3 through an HDMI cable using Linear PCM as far as I know. It might support DTS Master and Dolby HD now over optical, but it didn't when the system first came out. Linear PCM doesn't sound nearly as good as a bitstream audio like DTS in my opinion. So many different effectsmeans there can be no variation in the modulation, meaning no variance to project surround effects. The speakers just project whatever frequency is can be done through bitstreaming that a linear stream can't do.

There are lossless codecs that stream audio via bitstreaming where none of the waveform is lost when transcoding. Pulse code modulation transcodes the audio waveform directly as pulses at certain timeframes when the signal frequency is transmitted from the receiver to the speakers. Of course linear sent to it.

DTS-HD Master Audio
Dolby TrueHD
Linear pulse-code modulation

DTS is the best in my opinion. Dolby has gotten better, but it doesn't seem to have the same range and depth that DTS delivers. In fact I won't purchase a movie on Blu-ray unless it has audio in DTS-HD now. They're just too expensive to not have standards when making a purchase decision.
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So I have the Logitec Z5500 Digital 5.1 Surround set.

I have a PS3 Slim 320GB (New) and have an Opitcal Cable from the PS3 to my Logitech Decocoder and the PS3 Sound menu is set to DTS, my Logitech pod displays DTS when GT5 is running.

Are you saying, I should use sound over HDMI, then an optical from my TV to Logitech Pod to get the best sound...?

I was also told to put the sound settings in the PS3 to Linear PCM? Are you saying using Bitstream is better? When I put my PS3 into Bitstream is warns me about something might be work properly due to limitations?
 
It might be unrelated, but I used to get buggy collision sounds using 2-channel PCM output in Prologue (not tested other output methods.) They seemed to come out of nowhere, either badly delayed from my own incidents, or incorrectly filtered for their range (i.e. AI cars colliding).

In GT5, this has deteriorated into some odd artifact where the collision sounds just become a massive DC offset (i.e., the speakers end up fully deflected, but static). I recognise the hollow, poppy hum that my headphones make at full deflection (many failed experiments with delay lines and feedback loops...)

Anyway, just adding this as another consideration. I've never had any looping artifacts or audio problems in menus, however. And I fail to see why linear PCM would limit surround effects. It's possible (in fact that's precisely how I get my surround effects!), except it has to be imparted onto the waveform before transmission (unless your receiver can do it), rather than carried as an extra parameter in the bitstream (for the receiver to interpret...)

The only problem with linear PCM is that it is uncompressed, so you cannot send more than a few channels over the optical connection.
 
BruceT5
So I have the Logitec Z5500 Digital 5.1 Surround set.

I have a PS3 Slim 320GB (New) and have an Opitcal Cable from the PS3 to my Logitech Decocoder and the PS3 Sound menu is set to DTS, my Logitech pod displays DTS when GT5 is running.

Are you saying, I should use sound over HDMI, then an optical from my TV to Logitech Pod to get the best sound...?

I was also told to put the sound settings in the PS3 to Linear PCM? Are you saying using Bitstream is better? When I put my PS3 into Bitstream is warns me about something might be work properly due to limitations?
Click to expand...

In order take advantage of multi-channel linear PCM, you'll need a dedicated receiver with HDMI inputs that supports that type of signal i.e. you can't get it through an optical/digital output due to bandwith limitations (it technically supports 2-channel PCM, but that's not what you want).

As far as DTS-HD MA and Dolby TrueHD go, those are primarily used by Blu-Ray movies. PS3 games can technically use them, but most of them don't.
 

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