A computer components & hardware forum. HardwareBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » HardwareBanter forum » Video Cards » Ati Videocards
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Why poor quality video via ATI AIW / MMC TV???



 
 
Thread Tools Display Modes
  #1  
Old April 16th 04, 09:11 PM
Adam White
external usenet poster
 
Posts: n/a
Default Why poor quality video via ATI AIW / MMC TV???

I just bought an ATI All in Wonder Radeon 7500 video adaptor. I'm
using the TV Viewer / Personal Video Recorder software to capture
input from a VHS tape deck. The quality of the video is bad and I'm
trying to figure out why ... I bought the AIW card thinking I would be
upgrading my video capture capabilities ... not taking a step
backwards!

The scene I'm using to test my new ATI card is handled just fine using
the same PC but different "preview hardware/software" (see end of
message for details).

I think this problem is related to the ATI's "TV software" DISPLAY
capabilities more than the CAPTURE capabilities. The "bad quality
video" I'm referencing shows up when I preview/watch the video in the
ATI TV viewer, even before I capture it. And I see the same bad
quality if I go ahead and capture the video, burn the digital video
onto a DVD, and then play it on my set-top DVD player (on the TV). The
problem is there at every step along the way (i.e., the CAPTURE
process is working fine ... it's just that what's being captured is
not good!).

The "bad video" I'm referencing involves "jagged edges" on what should
be smooth vertical lines. For example, person standing in front of
wroght-iron fence ... the bars in the fence should be straight and
smooth ... the person's silouette should be smooth (but not straight).
In both cases, on my display, what should be straight edges are jagged
instead.

I can post an image showing this phenomenom, if that would be helpful.
In fact, I can post two images ... one showing the problem (as it is
with the ATI card) and one showing the same image but with NO problem
(video captured on same PC, using different setup ... no ATI hardware
or software).

Any ideas on why this is happening or how I can correct it? I've tried
playing with the ATI TV / Personal Video Recorder "video soap"
settings, and other ones too, but none seem to make any difference.
And I cannot find any settings in the TV viewer to change ...

My PC's has Soyo Dragon Lite P4X400 mobo, with Intel Pentium 2.4 Ghz
CPU, 1.5 GB DDR SDRAM, the ATI video adaptor, etc. I have loaded
VIA's Hyperion drivers version 4.48, ATI MMC 8.9 (even though the TV
application says "8.1" on the splash screen), and 7.991 ATI video
drivers (6.14.10.6430 Radeon driver).

The setup used to capture my "test" video was:
1. Configuration that works (no "jaggeds"): VHS deck connected to Sony
digital camcorder (where MPEG2 encoding takes place) which is then
connected to PC via IEEE 1394 cable. Ulead VideoStudio7 used to
capture (really just transfer) video.
2. Configuration that does not work (introduces "jaggeds"): VHS deck
connected to "input head" that came with ATI AIW card, which in turn
is connected to the AIW card. ATI TV 8.1 / Personal Video Recorder
used to catpure the video.

Thanks!

  #2  
Old April 17th 04, 03:27 AM
Chuck Forsberg WA7KGX
external usenet poster
 
Posts: n/a
Default

On Fri, 16 Apr 2004 20:11:17 +0000, Adam White wrote:

I just bought an ATI All in Wonder Radeon 7500 video adaptor. I'm using
the TV Viewer / Personal Video Recorder software to capture input from a
VHS tape deck. The quality of the video is bad and I'm trying to figure
out why ... I bought the AIW card thinking I would be upgrading my video
capture capabilities ... not taking a step backwards!

The scene I'm using to test my new ATI card is handled just fine using the
same PC but different "preview hardware/software" (see end of message for
details).

I think this problem is related to the ATI's "TV software" DISPLAY
capabilities more than the CAPTURE capabilities. The "bad quality video"
I'm referencing shows up when I preview/watch the video in the ATI TV
viewer, even before I capture it. And I see the same bad quality if I go
ahead and capture the video, burn the digital video onto a DVD, and then
play it on my set-top DVD player (on the TV). The problem is there at
every step along the way (i.e., the CAPTURE process is working fine ...
it's just that what's being captured is not good!).

The "bad video" I'm referencing involves "jagged edges" on what should be
smooth vertical lines. For example, person standing in front of
wroght-iron fence ... the bars in the fence should be straight and smooth
... the person's silouette should be smooth (but not straight). In both
cases, on my display, what should be straight edges are jagged instead.

I can post an image showing this phenomenom, if that would be helpful. In
fact, I can post two images ... one showing the problem (as it is with the
ATI card) and one showing the same image but with NO problem (video
captured on same PC, using different setup ... no ATI hardware or
software).

Any ideas on why this is happening or how I can correct it? I've tried
playing with the ATI TV / Personal Video Recorder "video soap" settings,
and other ones too, but none seem to make any difference. And I cannot
find any settings in the TV viewer to change ...

My PC's has Soyo Dragon Lite P4X400 mobo, with Intel Pentium 2.4 Ghz CPU,
1.5 GB DDR SDRAM, the ATI video adaptor, etc. I have loaded VIA's
Hyperion drivers version 4.48, ATI MMC 8.9 (even though the TV application
says "8.1" on the splash screen), and 7.991 ATI video drivers
(6.14.10.6430 Radeon driver).

The setup used to capture my "test" video was: 1. Configuration that works
(no "jaggeds"): VHS deck connected to Sony digital camcorder (where MPEG2
encoding takes place) which is then connected to PC via IEEE 1394 cable.
Ulead VideoStudio7 used to capture (really just transfer) video. 2.
Configuration that does not work (introduces "jaggeds"): VHS deck
connected to "input head" that came with ATI AIW card, which in turn is
connected to the AIW card. ATI TV 8.1 / Personal Video Recorder used to
catpure the video.

Thanks!


I have an AIW 7500. It is not too tolerant of imperfections in the
video signal.

My VCRs are a bit long in the tooth, so I ended up getting a new one
to get good recordings on some of my tapes. I got a low end JVC SVHS
for about $129.

I also have a DVICO Fusion II which isn't so bothered by out of spec
video. Unfortunately it seems to add sampling artifacts to the analog
audio during recording.


--
Chuck Forsberg www.omen.com 503-614-0430
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 FAX 629-0665

  #3  
Old April 20th 04, 02:16 AM
donna
external usenet poster
 
Posts: n/a
Default

Adaptive De-Interlacing for DVD Playback

The de-interlacing feature may be enabled from both ATI Displays (lower
right-side button) or from the ATI Config Menu in your menu bar.

This feature is intended for use with interlaced DVD content (often material
that was originally shot on video, such as TV programming, or deleted scenes
and documentaries included on many DVD titles as extras). Turning it on
while watching non-interlaced movies may slightly degrade certain elements,
such as static text displays. An interlaced source can easily be identified
on a monitor; you will be able to see horizontal stripes in the video
(easiest to see with fast moving subjects and high contrast areas).

The feature defaults to OFF when you restart your computer.

From ATI Displays you may enable de-interlacing on a per-card basis. From
the ATI Config Menu you may only make a global (all cards) change. ATI
Config Menu will show a check-mark next to the de-interlacing option if it
is enabled for all cards and it will show a blank space if is disabled for
all cards. If enabled only on some cards and disabled for others, it will
show a dash (-).

"Adam White" wrote in message
news
I just bought an ATI All in Wonder Radeon 7500 video adaptor. I'm
using the TV Viewer / Personal Video Recorder software to capture
input from a VHS tape deck. The quality of the video is bad and I'm
trying to figure out why ... I bought the AIW card thinking I would be
upgrading my video capture capabilities ... not taking a step
backwards!

The scene I'm using to test my new ATI card is handled just fine using
the same PC but different "preview hardware/software" (see end of
message for details).

I think this problem is related to the ATI's "TV software" DISPLAY
capabilities more than the CAPTURE capabilities. The "bad quality
video" I'm referencing shows up when I preview/watch the video in the
ATI TV viewer, even before I capture it. And I see the same bad
quality if I go ahead and capture the video, burn the digital video
onto a DVD, and then play it on my set-top DVD player (on the TV). The
problem is there at every step along the way (i.e., the CAPTURE
process is working fine ... it's just that what's being captured is
not good!).

The "bad video" I'm referencing involves "jagged edges" on what should
be smooth vertical lines. For example, person standing in front of
wroght-iron fence ... the bars in the fence should be straight and
smooth ... the person's silouette should be smooth (but not straight).
In both cases, on my display, what should be straight edges are jagged
instead.

I can post an image showing this phenomenom, if that would be helpful.
In fact, I can post two images ... one showing the problem (as it is
with the ATI card) and one showing the same image but with NO problem
(video captured on same PC, using different setup ... no ATI hardware
or software).

Any ideas on why this is happening or how I can correct it? I've tried
playing with the ATI TV / Personal Video Recorder "video soap"
settings, and other ones too, but none seem to make any difference.
And I cannot find any settings in the TV viewer to change ...

My PC's has Soyo Dragon Lite P4X400 mobo, with Intel Pentium 2.4 Ghz
CPU, 1.5 GB DDR SDRAM, the ATI video adaptor, etc. I have loaded
VIA's Hyperion drivers version 4.48, ATI MMC 8.9 (even though the TV
application says "8.1" on the splash screen), and 7.991 ATI video
drivers (6.14.10.6430 Radeon driver).

The setup used to capture my "test" video was:
1. Configuration that works (no "jaggeds"): VHS deck connected to Sony
digital camcorder (where MPEG2 encoding takes place) which is then
connected to PC via IEEE 1394 cable. Ulead VideoStudio7 used to
capture (really just transfer) video.
2. Configuration that does not work (introduces "jaggeds"): VHS deck
connected to "input head" that came with ATI AIW card, which in turn
is connected to the AIW card. ATI TV 8.1 / Personal Video Recorder
used to catpure the video.

Thanks!



 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tyan K8S Pro S2882: installing a PCI video card Andy Kuo AMD x86-64 Processors 3 November 6th 04 12:02 AM
New Video Card AGP B&B Musmon Overclocking AMD Processors 1 August 29th 04 02:25 PM
my new mobo o/c's great rockerrock Overclocking AMD Processors 9 June 30th 04 08:17 PM
A graphics card with video capture Hupjack Homebuilt PC's 14 April 7th 04 09:15 PM
WARNING -> Most ATI 9600XT Video Controllers Have Major Issues. . . Timothy T. Doran Asus Motherboards 0 February 7th 04 05:14 PM


All times are GMT +1. The time now is 07:28 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Copyright 2004-2022 HardwareBanter.
The comments are property of their posters.