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Best Possible Sound on Vista 64 bit and LG BlueRay/HD-DVD Combo drive

1846 Views 3 Replies 4 Participants Last post by  gorthocar

i currently have vista 64bit with Bgears b-Enspirer sound card, LG High Def Drive, Logitech z5500 and powerdvd ultra. I have all the latest drivers installed on my machine for all the hardware inside. I will like to get the reciever to decode true dolby digital or dts sound when i watch movies. when i set powerdvd audio settings to use spidif, there is no sound coming to my speakers. in the sound card properties, i have the digital connection set as default with all the codecs supported checked. I have the reciever set and connected to optical settings but nothing. Can anyone help?

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Did you set PowerDVD to output through SPDIF?

BTW, apparently there is no way to output TrueHD (which I assume you meant by "true dolby digital") and have your receiver decode. There is no digital path for TrueHD on PCs at the moment.

The best that can be done is to send the audio through your analog outputs to your receiver. To do this you will need to buy a retail version of PowerDVD. Even then, its not TrueHD quality but downsampled audio. Various posts say this can provide better sound than what can be acheived using 5.1 DD/DTS through SPDIF. I haven't tried this yet as I don't want to shell out $$ for the retail PowerDVD. There are just too many issues with all available HD playback software to spend hard earned cash.

Intel G35 can pass Dolby True HD as multi-channel LPCM over HDMI. Still suffers from the same downsample by PDVD as an analogue but at least keeps things in the "digital" domain and is by far the most advanced audio solution to date for the PC (as long as your AVR has a "standard" EDID and accepts it).


I'm using a nvidia 8600gts video card and sb x-fi sound card with a digital s/pdif connection to my receiver. With the LG dual format drive and powerdvd ultra 7.3, I can't take advanatage of a digital output of 5.1 PCM, 5.1 Dolby TrueHD, 5.1 Dolby Digital+, or 5.1 DTS-HDMA. I can get digital outputs of stereo PCM, Dolby Digital 5.1, and core DTS 5.1. (Or I could go with the analog outputs on my sb x-fi card, but they suck.)

I'm waiting on good discrete hdmi sound cards...
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