I now tried to automatically get all combinations which produce 7 mp3 files.

Here is the code:

use strict;
use warnings;

use Audio::FindChunks;

my @min_silence_sec_list = map { $_/100 } (0..50);
my @min_signal_sec_list = map { $_/100 } (0..50);
my @above_thres_window_list = (0,1,2,3,4);

open( my $CSV_FH, ">", "split_results.csv") or die $!;

for my $min_silence_sec ( @min_silence_sec_list )
{
    for my $min_signal_sec ( @min_signal_sec_list )
    {
        for my $above_thres_window ( @above_thres_window_list )
        {
            Audio::FindChunks->new(filename => 'bere.mp3',
                                   min_silence_sec => $min_silence_sec
+,
                                   min_signal_sec => $min_signal_sec, 
+                                                             
                                   above_thres_window => $above_thres_
+window)->split_file();

            my @split_mp3_files = glob("*_bere.mp3");
            my $num_chunks = scalar(@split_mp3_files);
            unlink(@split_mp3_files);

            if( $num_chunks == 7 )
            {
                print $CSV_FH 
                    "$min_silence_sec;$min_signal_sec;$above_thres_win
+dow\n";
            }
        }
    }
}

close($CSV_FH);

[download]

Afterwards I tried some of these combinations. But the results are not good. Often the split is done in the middle of a word,...

Difficult how to continue now with this module.

But I learned one obvious thing from you and I don't know why I did not have this idea on my own. I was first trying manually the possible combinations. But you are right with your advice to do this automatically with a script as I have done it now.

But the good message is that I now know how to solve the problem with audacity. It has a "Soundfinder" plugin and this is working perfectly with all my mp3 files.

I'm still interested how to solve it with the Audio::FindChunks module. But I don't know how to continue now. Perhaps taking more parameters into account and trying more combinations or even comparing the split times with the correct split times I got from audacity.

In reply to Re^4: Split MP3 file at silence by Dirk80
in thread Split MP3 file at silence by Dirk80

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