I'm asking this as a meditation, because I don't expect any Perl (or other) code for that.
Questions:
- Is it possible to filter speech frequencies in a video with significant accuracy to identify the passages were people talk?
- Can the resulting pattern be used to synchronize a subtitle file, to match the gaps?
I'm looking for a low tech solution offering a handful of plausible adjustments to chose, not a speech recognition bazooka (like YT's auto-subtitles)
Background:
I'm often downloading foreign language movies and like to see them with original voice and subtitles to practice and learn vocabulary, but am often obliged to download and adjust the subtitles timing, because
- they are shifted, because of trailers or of "what happened last time" intros
- they are stretched, because of different frame rates
- they need readjustment in the middle because scenes were cut out
there are already Perl modules to fix the first two cases for .srt files.
That is, if the parameters are known. But finding them can be tricky.
FWIW: VLC offers an option for such synchros, but tends to freeze for a minute if the shift is in the area of 20 secs. No fun when trying out the best settings.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
