route ac3 directly

jop91220 · Sep 20, 2003, 02:51 PM

HI,
how can I route an ac3 signal directly from my DVDPlayer to the SBlaster's SPDIF output, without software decode it ?

I mean, route the ac3 to an external hardware decoder.

Thanks for replys..... (I hope you've understand my english... :-)

**Eugene Gavrilov** · Sep 20, 2003, 10:13 PM

probably, toggling 'spdif bypass' will do the trick

/E

Dandreemex · Oct 29, 2003, 07:45 PM

I have the same problem, but when I turn on the "S/PDIF bypass" I have no sound from the external decoder. It´s should appear the Dolby Digital logo on the display of the decoder right? and when you play music It´s should appear the PCM logo. Ok, with the "S/PDIF bypass" deselected I have no problem to play music, but when I play an ac3 encoded film (from any source) the sound card detects it and decodes it an I get sound from the decoder, but in PCM mode (stereo) not in Dolby Digital mode. So I turn on the "S/PDIF bypass", but in this case the spdif get muted and no logo appears in the display.

I have a Soundblaster Live! 5.1 player digitally conected to a Yamaha RX-V440 AV reciver.

I don´t know what to do!!

thx in advance

**Eugene Gavrilov** · Oct 30, 2003, 10:19 PM

you cannot use both 'spdif bypass' and 'digital playback' features at the same time

/E

Dandreemex · Oct 31, 2003, 04:34 PM

And...

what I must do to listen a DD or dts encoded film?

Deselect S/PDIF output only and turn on S/PDIF bypass?

**Eugene Gavrilov** · Nov 1, 2003, 11:18 PM

probably, the best way is to play / experiment with all the settings

>> route an ac3 signal directly from my DVDPlayer to the SBlaster's SPDIF output, without software decode it

software decoding of an incoming signal is impossible for 10k1-based cards (such as Live/APS)
if you click 'spdif bypass', the digital output of your card will not output the audio you are playing since the spdif interface will be in 'bypass' mode

so, 'doo=on spdif_bypass=off' and 'doo=off spdif_bypass=on' might solve your problems

/E

Sep 20, 2003, 02:51 PM	#1
jop91220 DriverHeaven Newbie Join Date: Sep 2003 Location: paris Posts: 1 Rep Power: 0	route ac3 directly HI, how can I route an ac3 signal directly from my DVDPlayer to the SBlaster's SPDIF output, without software decode it ? I mean, route the ac3 to an external hardware decoder. Thanks for replys..... (I hope you've understand my english... :-)

Sep 20, 2003, 10:13 PM	#2
Eugene Gavrilov kX Project Lead Programmer and Coordinator Join Date: Dec 2002 Posts: 3,119 Rep Power: 75	probably, toggling 'spdif bypass' will do the trick /E

Oct 29, 2003, 07:45 PM	#3
Dandreemex DriverHeaven Newbie Join Date: Oct 2003 Posts: 2 Rep Power: 0	I have the same problem, but when I turn on the "S/PDIF bypass" I have no sound from the external decoder. It´s should appear the Dolby Digital logo on the display of the decoder right? and when you play music It´s should appear the PCM logo. Ok, with the "S/PDIF bypass" deselected I have no problem to play music, but when I play an ac3 encoded film (from any source) the sound card detects it and decodes it an I get sound from the decoder, but in PCM mode (stereo) not in Dolby Digital mode. So I turn on the "S/PDIF bypass", but in this case the spdif get muted and no logo appears in the display. I have a Soundblaster Live! 5.1 player digitally conected to a Yamaha RX-V440 AV reciver. I don´t know what to do!! thx in advance

Oct 30, 2003, 10:19 PM	#4
Eugene Gavrilov kX Project Lead Programmer and Coordinator Join Date: Dec 2002 Posts: 3,119 Rep Power: 75	you cannot use both 'spdif bypass' and 'digital playback' features at the same time /E

Oct 31, 2003, 04:34 PM	#5
Dandreemex DriverHeaven Newbie Join Date: Oct 2003 Posts: 2 Rep Power: 0	And... what I must do to listen a DD or dts encoded film? Deselect S/PDIF output only and turn on S/PDIF bypass?

Nov 1, 2003, 11:18 PM	#6
Eugene Gavrilov kX Project Lead Programmer and Coordinator Join Date: Dec 2002 Posts: 3,119 Rep Power: 75	probably, the best way is to play / experiment with all the settings >> route an ac3 signal directly from my DVDPlayer to the SBlaster's SPDIF output, without software decode it software decoding of an incoming signal is impossible for 10k1-based cards (such as Live/APS) if you click 'spdif bypass', the digital output of your card will not output the audio you are playing since the spdif interface will be in 'bypass' mode so, 'doo=on spdif_bypass=off' and 'doo=off spdif_bypass=on' might solve your problems /E