Greetings all. I have copied an amateur VHS video onto a DVD (using a Tape/DVD machine with cross-copying capability).
I have copied the DVD to a ".iso" file (ndf filesystem, I think) using cat /dev/dvd > titlename.iso, and I dare say I can store the various compoment files in a directory using dvdbackup. No problem in duplicating the DVD using growisofs from the ".iso" file. This works well.
However, the sound-track is too quiet (it was filmed from the back of a lecture-theatre during a talk), and it would be good to augment the sound volume (the DVD has to be played at maximum sound level on the player, and even then is often too faint).
I have little experience of manipulating video stuff, and would welcome guidance on how to proceed!
With thanks, Ted.
-------------------------------------------------------------------- E-Mail: (Ted Harding) Ted.Harding@manchester.ac.uk Fax-to-email: +44 (0)870 094 0861 Date: 09-Sep-09 Time: 19:15:52 ------------------------------ XFMail ------------------------------
Hi,
On Wed, 9 Sep 2009, Ted.Harding@manchester.ac.uk wrote:
However, the sound-track is too quiet (it was filmed from the back of a lecture-theatre during a talk), and it would be good to augment the sound volume (the DVD has to be played at maximum sound level on the player, and even then is often too faint).
I have little experience of manipulating video stuff, and would welcome guidance on how to proceed!
Maybe use mencoder to encode to XViD or mpeg4 and use the settings to normalise the audio, or to increase volume during encoding.
Maybe use '-oac mp3lame -lameopts fast:preset=standard:vol=5', but could experiment with the settings. Vol is the gain and has range 0 to 10, where I imagine 0 is no gain.
Srdjan
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Srdjan Todorovic -
Ted.Harding＠manchester.ac.uk