RE: Sound quality for Leadtek WinFast TV 2000 XP (bt878)

"Robert Dixon" <robert_j_dixon@xxxxxxxxxxx> · Tue, 01 Feb 2005 03:38:57 +0000

G'Day Randall,
I'm in Brisbane using a Spirit SCP1000 (Dick Smith cat. XH6780, $AUD69.74)
which also uses an 878.  I cannot remember which card and tuner I use,
but a number seemed to work.
I also have noticed that channel 7 has poor sound quality, and found that 
slightly

mis-tuning (about +4, I think) improves it significantly.  Use the fine-tune 
keys from

xawtv to check.  However, this caused the colour to saturate badly.  So, my 
.xawtv

has special settings for channel 7 to fine tune and reduce colour (~30 or 
40).

My SBS pickup is poor (antennae issues) but I think the same problem may be

present there also.
I seem to remember that the Windoze software that came with the card had
trouble with channel 7 also, suggesting that it is not a purely s/w issue.
Is this an issue in the frequency tables?  Or are these stations not 
transmitting

on the correct frequencies?  Or is it atuner issue?  Anyone else seen this ?
Robert Dixon

Hi Folks,
I have found the sound quality for (free-to-air) channels 7 and SBS (in 
Melbourne, Australia) to be very poor using a Leadtek WinFast TV 2000 XP 
"RM edition" even though the picture and sound through my TV is perfect for 
all channels. Has anyone else experienced this problem?
This card has a connexant Fusion 878A chip and (after peeling the sticker 
off) a tuner with a sticker saying: "TVision TVF-8533-B/DF". The sticker on 
the tuner has a bunch of braodcast format boxes (NTSC, PAL etc.) and the 
"PAL DK" box is ticked.
I got the card working under linux without much fuss using the bttv module 
with card id=35 and tuner id=38. (A few other tuner ids also sort-of 
worked...) The picture quality for most channels is OK (although not as 
good as a TV set) but sound is poor on two channels with lots of white 
noise. I even took the heretical step of installing a Windoze partition on 
my disk to see if the pre-bundled software would be any different: nope. 
Still crap sound on channel 7 and SBS. I am therefore wondering if this is 
a hardware problem and the tuner is just crap. This is, after all, a 
bottom-of-the-range card which retails for $80 in Australia. Has anyone 
else had this kind of experience?
Cheers,
Randall.
This link is also somewhat relevant: http://www.lemoncube.com/354.html
--

| Randall Wayth

| Astrophysics Group. University Of Melbourne, 3010. Australia

| astro.ph.unimelb.edu.au/~rwayth

"Democracy is the theory that holds that the common people know what they 
want, and deserve to get it good and hard." - H. L. Mencken.
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