margol
Posts: 4
Joined: Wed May 05, 2010 6:44 pm
PC Specification: Athlon 64x2 5600+, Geforce 8300, XP (SP3

Perfect video, bad audio or vice versa

Wed May 05, 2010 7:29 pm

Playing AVCHD files from VIXIA HF100S, I get either nearly perfect video (by far better than any other player I tried), but the audio is choppy and out of sync. This happens, if I check the hardware acceleration. If I uncheck the latter, the audio is fine, but the video becomes choppy (not too much, but noticably compared to the previous case).
How the hardware acceleration affects audio ? What can be done ?

tolin
Posts: 3
Joined: Fri May 07, 2010 9:27 am

Re: Perfect video, bad audio or vice versa

Fri May 07, 2010 9:50 am

I think i have a similar problem with the audio...I opned a thread to report it.

margol
Posts: 4
Joined: Wed May 05, 2010 6:44 pm
PC Specification: Athlon 64x2 5600+, Geforce 8300, XP (SP3

Re: Perfect video, bad audio or vice versa

Sun May 09, 2010 4:22 am

Do you mean this one ?
tolin wrote:Hi.
Oor local (Israel) DVB-T channels configs are:
Video: h.264 (mpeg4)
Audio: AAC + V2

When I play the channel with your program, the audio lags (video is before the audio) and interrupts (every 2 seconds there is no audio)
I am not sure it is the same topic as I meant playing AVCHD files and not DVB-T.
Does anybody has similar problem with AVCHD ? Could it be a hardware problem (I have Athlon 64 x2 5600+ and integrated Geforce 8300) ?

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vivan
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PC Specification: Acer Aspire TimelineX 3830TG
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Re: Perfect video, bad audio or vice versa

Sun May 09, 2010 7:44 am

I'm not sure but here could be reason:
With hardware acceleration player is trying to show every frame - but it's too complex video for video card (so it's can't decode it in real time speed) - so audio can't be synchronized.
Without hardware acceleration - it's too complex task for the processor - so video player is dropping frames. Is CPU load 100%?
What video are you traying to playback - 1080 60i from the camera?
Desktop (Intel i7-970, ATI 5870, Windows 7 x64)
Acer Aspire TimelineX 3830TG (Intel i5-2410M, nVidia GT540M, Windows 7 x64)
PS Vita, Nokia N8

margol
Posts: 4
Joined: Wed May 05, 2010 6:44 pm
PC Specification: Athlon 64x2 5600+, Geforce 8300, XP (SP3

Re: Perfect video, bad audio or vice versa

Mon May 10, 2010 2:24 pm

vivan wrote: Is CPU load 100%?
What video are you traying to playback - 1080 60i from the camera?
Not sure about the CPU load. I'll check later on.
The playback was both 60i and 24p. All 1080.
Encountered another problem. Trying to play the same stuff on another comp (the same CPU - Athlon 64 x2 5600+, but different mobo with the integrated Radeon 3200) got black screen :cry:
Perfect audio though :lol:
I hope PRO will be more stable.
Tonight I will try it on my third comp with the ION mobo (Geforce 9300 I guess).

margol
Posts: 4
Joined: Wed May 05, 2010 6:44 pm
PC Specification: Athlon 64x2 5600+, Geforce 8300, XP (SP3

Re: Perfect video, bad audio or vice versa

Tue May 11, 2010 5:58 am

The CPU load with hardware acceleration is between 2 to 7 %, without acceleration is around 80%. I also tried the ION based nettop (Acer Revo 3610) and got very similar results (even slightly better). Thus, the bottom line is: SPLASH Lite 1.3 plays my AVCHD files with perfect video quality and choppy audio with hardware acceleration and somewhat choppy video and good audio without the acceleration. All this on two different machines with similar video card (integrated GeForce 8300 and 9400). Apparently, CPU does not play a significant role (similar results with a dual core Atom 330 vs Athlon 64 x2 5600 (overclocked to roughly 6000)). The player does not play at all on the machine with the integrated ATI 3200 (black screen, grayed out harware acceleration).
At the moment I don't know what can be done besides waiting for Splash Pro or HD-cam.

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