AC3-in Decode SUCCESS!

kelvink · Nov 29, 2003, 04:57 PM

Greetings,

Thanks to the 3536rc2 driver, now I can decode AC3 stream from an external SPDIF source.

Here's what I did in the master mixer panel:

(1) Check "SPDIF-in AC3 decode" box
(2) Check "SPDIF bypass" box
(3) Select "Coaxial" in P16V
(4) Select "OFF" in SPDIF direct recording

The driver automatically detects AC3 stream and decode accordingly. I also tried normal PCM and it also detects it without any problem.

I got system crashes when I select "Coaxial" in both P16V and SPDIF direct recording, just in case you have the same situation.

I use hoontech's DBIII for the SPDIF I/O. Of course I have to do some soldering in order to use the SPDIF_IO header which is not the same as the SPDIF_EXT in SBLive!. However, a simple RCA connector can be added to the SPDIF_IO without the need of +5V supply.

Hope my experience helps the kx community!
Kelvin

**Eugene Gavrilov** · Nov 30, 2003, 02:42 AM

well, "(1) Check "SPDIF-in AC3 decode" box" should be sufficient in most cases (for 3536rc2 and later)

>> I got system crashes when I select "Coaxial" in both P16V and SPDIF direct recording

I'll check that

>> Select "OFF" in SPDIF direct recording

this is useless, since the option is automatically turned on when the driver detects ac-3 stream

>> (2) Check "SPDIF bypass" box

in most cases, this shouldn't affect ac-3 decoding either...

please check if the (1) tweak works (you may need to re-start kX Mixer before your tests)

/Eugene

dennnisss · Nov 30, 2003, 11:55 AM

It's very interesting, I'll check that!

ettore · Nov 30, 2003, 11:21 PM

Ok,where i can download 3536rc2?i have ac3 decoding problems with my sb live paltinum,during playing dvd under power-dvd with spdif audio enabled...do you think that 3536 can resolve it?

Thanks to everybody.

Joey · Dec 1, 2003, 04:33 AM

Does that mean a 10k SBLive can take in a 48k 24-bit spdif from say, my Lexicon Core2 that only works on Win 9x? (spare computer).

Thanks

ettore · Dec 1, 2003, 01:35 PM

Thank you,but i don't understand what are you saying...english is not my first language.I'm just want to know if with the last drivers i can decode as well audio with the internal spdif connectors of the sound card.Another time sorry for my reply.

Bye...

kelvink · Dec 3, 2003, 04:12 AM

I'm having system crash pretty much 100% of the time when the AC-3 input is detected and decoded for a while. Don't know what happen.

For straight PCM input it doesn't have any problem.

Any idea? I'm using 3536

Man, this is a showstopper because I need it to work for my upcoming HDTV box.

Nov 29, 2003, 04:57 PM	#1
kelvink DriverHeaven Newbie Join Date: Nov 2003 Posts: 6 Rep Power: 0	AC3-in Decode SUCCESS! Greetings, Thanks to the 3536rc2 driver, now I can decode AC3 stream from an external SPDIF source. Here's what I did in the master mixer panel: (1) Check "SPDIF-in AC3 decode" box (2) Check "SPDIF bypass" box (3) Select "Coaxial" in P16V (4) Select "OFF" in SPDIF direct recording The driver automatically detects AC3 stream and decode accordingly. I also tried normal PCM and it also detects it without any problem. I got system crashes when I select "Coaxial" in both P16V and SPDIF direct recording, just in case you have the same situation. I use hoontech's DBIII for the SPDIF I/O. Of course I have to do some soldering in order to use the SPDIF_IO header which is not the same as the SPDIF_EXT in SBLive!. However, a simple RCA connector can be added to the SPDIF_IO without the need of +5V supply. Hope my experience helps the kx community! Kelvin

Nov 30, 2003, 11:55 AM	#3
dennnisss DriverHeaven Junior Member Join Date: Oct 2003 Posts: 38 Rep Power: 0	experiens, son of hard mistakes! It's very interesting, I'll check that!

Nov 30, 2003, 11:21 PM	#4
ettore DriverHeaven Newbie Join Date: Nov 2003 Posts: 2 Rep Power: 0	ac3 problems Ok,where i can download 3536rc2?i have ac3 decoding problems with my sb live paltinum,during playing dvd under power-dvd with spdif audio enabled...do you think that 3536 can resolve it? Thanks to everybody.

Dec 1, 2003, 04:33 AM	#5
Joey DriverHeaven Junior Member Join Date: Apr 2003 Location: United States Posts: 37 Rep Power: 0	Does that mean a 10k SBLive can take in a 48k 24-bit spdif from say, my Lexicon Core2 that only works on Win 9x? (spare computer). Thanks __________________ AMD Athlon XP 1800 + 512 DDR 30 GB ATA 100 7200 RPM 8x CDR(W) GeForce2 SBLive Value 10k 1 XP Pro SR1

Dec 1, 2003, 01:35 PM	#6
ettore DriverHeaven Newbie Join Date: Nov 2003 Posts: 2 Rep Power: 0	What?... Thank you,but i don't understand what are you saying...english is not my first language.I'm just want to know if with the last drivers i can decode as well audio with the internal spdif connectors of the sound card.Another time sorry for my reply. Bye...

Nov 30, 2003, 02:42 AM	#2
Eugene Gavrilov kX Project Lead Programmer and Coordinator Join Date: Dec 2002 Posts: 3,106 Rep Power: 73	well, "(1) Check "SPDIF-in AC3 decode" box" should be sufficient in most cases (for 3536rc2 and later) >> I got system crashes when I select "Coaxial" in both P16V and SPDIF direct recording I'll check that >> Select "OFF" in SPDIF direct recording this is useless, since the option is automatically turned on when the driver detects ac-3 stream >> (2) Check "SPDIF bypass" box in most cases, this shouldn't affect ac-3 decoding either... please check if the (1) tweak works (you may need to re-start kX Mixer before your tests) /Eugene

Dec 3, 2003, 04:12 AM	Thread Starter #7
kelvink DriverHeaven Newbie Join Date: Nov 2003 Posts: 6 Rep Power: 0	doesn't work reliably anymore... I'm having system crash pretty much 100% of the time when the AC-3 input is detected and decoded for a while. Don't know what happen. For straight PCM input it doesn't have any problem. Any idea? I'm using 3536 Man, this is a showstopper because I need it to work for my upcoming HDTV box.