Tips to improve translation.

For Video YouTube: ¡Bienvenidos a Extraordinerd!

Audio

Result Run Script Autosub

Results: Very BAD

Methods Improve Translation..

Method 1 : Trim/Crop

Crop video, 10 seconds Audio.

Results:

Speech: Medium
Timing: Good

Method 2 Silence noise

Silence Audio (Noise,music, etc.)

Observations: The best method, but it requires a long time to identify the sounds, voices, ambient noise.

Results: Very good

Method 3 Use Filters

Use Filters of FFmpeg, loudnorm or dynaudnorm
ffmpeg -i myvideo.mp4 -af loudnorm=i=-5 myvideoFilter.wav

Results: Very good

Observations: It requires a special compilation of ffmpeg, but can be downloaded from here.

Method 4 Change threshold

Modify the script, and Zero the value of threshold=0

Observations:this case, it worked like that with the filter, but it is not always so. LOST TOTAL TIMING.

Notes

Note 1 : For speed, the audio must be converted to mono and frequency to 16000
Note 2 : For methods 2 to 4, the script could not identify the silences, so cutting it done automatically at 6.1 seconds (min_region_size = 0.5, max_region_size = 6)