|
|
| raffriff42 |
| Posted: Jun 6 2014, 07:09 PM |
 |
|
Advanced Member
Group: Members
Posts: 384
Member No.: 35081
Joined: 25-June 12
|
| QUOTE (maruli @ May 29 2014, 02:22 AM) | | So now I have started using virtualdub to grab uncompressed .avi files. ...I attempt to copy VCR tapes... But whenever the files are compressed and prepared for burning on a DVD, the quality is not acceptable. |
So you are capturing VHS tapes, is that right? They probably have a lot of noise; you may not notice it when viewing the uncompressed capture files, but the compression codec sees the noise - and since noise is not compressible, they take most of the available bits in your compressed file, leaving fewer for your actual program.
You need to look into noise removal and generally cleaning up the video before attempting to compress it. Others have written guides on this subject - start here: google.com/search?q=virtualdub+vhs+capture+tutorial |
|
| maruli |
| Posted: Jun 6 2014, 09:05 PM |
|
|
Member
Group: Members
Posts: 20
Member No.: 37871
Joined: 11-April 14
|
evropej:
Your suggestions of freemake is a reinforcing coincidence. This is the program, which seemed to produce the best of all the insatisfactory results and which I am planing to use.
raffriff42:
For my experiments, I am not using the videos of my project, but a good quality video with animal scenes, which I have bought. It is this video, which is visibly better uncompressed than compressed. |
|
| maruli |
| Posted: Jun 6 2014, 10:18 PM |
|
|
Member
Group: Members
Posts: 20
Member No.: 37871
Joined: 11-April 14
|
But I have one more question concerning freemake:
It allows me to choose burning a DVD as output. I know that the VOB files are just containers, but what exactly is in those of freemake? If I have not overlooked something, I was not asked to choose the codecs or anything.
I just found out the specifications of the target dvd player, a Philips DVP 3520, so I want to make sure, that I produce DVDs, which this player can read.
Support video/audio digital formats
MP3, WMA, MPEG2, MPEG4, DivX Ultra, VideoCD, SVCD, JPEG, Picture CD
Am I right to expect, that the freemake DVDs will be accepted by this player?
The specification give also this information:
Audio D/A Converter 24-bit, 192 kHz
Video D/A Converter 12-bit, 108 MHz
Does this have any impact upon the parameters for converting the uncompressed files? |
|
| evropej |
| Posted: Jun 10 2014, 06:45 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
If the DVD supports DIVX, then compress to divx through freemake and skip a step. I am not sure how freemake makes DVDs. I will check later tonight.
Remember too that you can increase the file size in freemake to get better quality instead of better compression. Lower values of file size give the highest compression but lowest quality and vise versa. |
|
| maruli |
| Posted: Jun 10 2014, 09:53 PM |
|
|
Member
Group: Members
Posts: 20
Member No.: 37871
Joined: 11-April 14
|
I do not see, what step to skip? I have grabbed into uncompressed avi files of about an hour each, checked that Freemake showed 9000 as the bit rate and let freemake burn directly to DVD. Now I am wondering, if the target player will read it. |
|
| evropej |
| Posted: Jun 12 2014, 03:22 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
If the dvd player supports divx, you can use freemake to compress the uncompressed video to divx compatible avi file.
You also have the option to convert to DVD which will be compatible with most dvd players in the same region.
DVD discs are cheap, give it a go and find out  |
|
| maruli |
| Posted: Jun 17 2014, 06:54 PM |
|
|
Member
Group: Members
Posts: 20
Member No.: 37871
Joined: 11-April 14
|
Thank you all for being helpfull. A few days ago I handed over 17 DVDs. If anybody will as much as pronounce the word 'video' in my presence in the near future, I may temporarily take a break from being a peaceful person.
But I have learned a lot. |
|
