Picture but no sound for Freeview NZ

[philanyware]

I have a good picture for all channels but no sound.
I've tried setting audio decoder in config to: AC3Filter, MPEG, Cyberlink, Intervideo NonCSS & ffdshow.
Using Nova T 500 card (dvb-t) for Freeview NZ.
gbpvr v1.3.11
ffdshow tryouts r2577 (Dec 17 2008). It has AAC in the list of codecs. What else do I need to do?

Thanks,
Phil

[stustunz]

use monogram aac decoder if you want to make sure it works
then once you get it going if you still want to play with ffdshow you can later

[JonnyCam]

use the momogram aac decoder - the NZ format is HE-AAC, (high efficiency I think) and I'm not sure ffdshow supports it yet.

EDIT: Yeah, what Stu said. (and maybe I was wrong about ffdshow)
later you can add it to the list of supported aacLATM decoders in the config.

[philanyware]

Thanks, monogram decoder worked.
Note (for other beginners) that to install I copied mmaacd.ax to c:\windows\system32 and ran "regsvr32 c:\windows\system32\mmaacd.ax" as admin.

I now have sound but it breaks up really badly. Is this my choice of codec or not grunty enough PC?
TV1 is worst, TV3 is best.

h.264=ffdshow (I also have cyberlink but it seems worse)
aac=monogram
he-aac=monogram

tv card=nova t 500
1MB ram
cpu=1.86ghz intel core 2 duo
video=nvidea geforce 7300gs 256mb

Thanks,
Phil

[sub]

Unfortunately your videocard doesnt support H.264 hardware acceleration so you'll probably struggle with those specs. Some people have noted less CPU usage using the CoreAVC decoder, but I dont have a machine with the same specs as yours so cant be sure it'll help.

[philanyware]

Thanks. Can you suggest a good video card?
No games, just movies and freeview.

[sub]

Probably a nvidia 8500/8600 card. The newer ATI cards sound ok, but ATI are terrible for driver problems, so I dunnno...

[JonnyCam]

Thanks. Can you suggest a good video card?

If you have PCI-e, I got an 8600 GT, and it was qite cheap. The place I got mine from doesn't sell them anymore, but I found another site: ($109.50 + GST & Shipping)

PALIT 8600GT 512MB 128Bit HDTV, DVI, PCI-E
http://www.sigmapconline.co.nz/product_i...ts_id=5123

I can decode all of the H264 channels without problem on my 3Ghz Celeron, so the hardware acceleration must be working.

[philanyware]

Thanks for the info. I finally got around to getting an asus en8400gs ($100) which the guy in the shop said would be ideal for watching hi def movies and freeview.
But I still have the same problem. When watching any channel on Freeview the picture is perfect but the sound breaks up a lot. I put the old video card back in and it seems exactly the same.

How do I confirm that the 8400gs can decode h.264?

Do I need to upgrade my sound card too?
Creative SoundBlaster Audigy2 ZS

Thanks,
Phil

[philanyware]

After testing a bit more the picture quality is slightly better on the new card than the old one. When using the old video card the picture jumps a little. With the old card the cpu usage runs at 70 to 100% all the time, slightly less with the new card. Does that help diagnose?

Thanks,
Phil