Help!! Audio problem?

[bitvcd]

Hello to everybody:

I'have bought recently a Mustek/Yukai 560 standalone dvd player with a creative dtt 2200 5.1 dolby digital ( this dvd has dolby decoded rca outs and every thing is fitted correctly - I have tested it several times-). It seems to eat all, but here is the problem?

With a dvd film all wonderfull, it sounds in al speakers, but ...

I' have created a svcd with supposed dolby surround (...) , well, why I can't hear the rear and center speakers?, it seems to be only stereo channel. This also occurs with a cd audio.:(

I checked the sets in the setup, there are 4 options and none of them work.

Is this normal? The svcd and audio can only be heared in stereo?

Can anybody help me?:confused:

Thanks for all answers,

[Wh00pS]

when you made the svcd did you downsample the audio from 48-44.1,if not then your problem could lie there.not downsampling is supposed to cause problems on dolby surround systems but dolby pro logic will still be ok as it only needs a 2 channel stereo signal.

[bitvcd]

Hello:

Yes I have done the downsampling from 48 to 44.1 with the ssrc option in the dvd2svcd.

I was thinking about if my player is not dolby prologic compatible :confused:


Thankyou, any new idea?

[Antonio S.]

CD Audio is 2.0 (only 2 channels) and (S)VCD is MPEG 2.0 (only 2 channels). Dolby Digital (AC-3) can be 2.0, 5.1, and others comb. DTS can handle also multichannels (if you DVD has an inboard decoder). You can find DTS material in some DVD's and some audio CD's...:)

Antonio S.

[24hourloop]

There is no such thing as a prologic compatible player. Prologic, Surround, Stereo - it's all just two channels. It's the Amp that turns decodes it into four channels. That's why your cassette and tape deck (I heard there are some still around :-) can record any of these.

The extra information is encoded using phase shift of this information - I am not an expert on the matter.

One of the problems you can encounter is when you encode your Dolby Surrong using 'Joint Stere', which in itself achieves better compression by playing games with phase-shifting signals. The two processes can interact with each other and mess up your Surround effect.

If you encode using 'Joint Stereo' try using 'Stereo' only and see what happens.

Originally posted by bitvcd
Hello:

Yes I have done the downsampling from 48 to 44.1 with the ssrc option in the dvd2svcd.

I was thinking about if my player is not dolby prologic compatible :confused:


Thankyou, any new idea? :D

[Kedirekin]

I agree with 24hourloop. The problem isn't with downsampling to 44.1. It also probably isn't caused by the use of joint stereo (especially since you're not getting the center channel, which doesn't use phase-shift in the DS encoding).

The problem is your DVD player undoubtedly doesn't have Dolby Surround decoding capability. In addition, even if your reciever is DS capable, it may not want to decode DS in this case (since your SVCD output is going in to your receiver via the 5.1 inputs, which probably bypass the decoding stages).

On a related note, does anyone know how common it is for a Dolby Digital receiver to also have Dolby Surround capability? I know mine does, but I don't know if it is generally common. It seems like it would be - they're both from Dolby after all.

[bitvcd]

Hello and happy New Year:

For all interested in this issue,I'm not using "joint stereo", only stereo.

My stand alone player has built in Dolby Digital decoder, but the firmware release used in it (2.03) don't have the Dolby Digital settings menu. I saw somewhere screenshots of the older version of this firmware (2.00) which have this menu.

Anybody know where i can find this one and how to flash it?

I was thinking about if this is the only way to achieve decoding surround. :(