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Change the playback speed of powerpoint narration

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ppt_playback

A command-line tool that utilises ffmpeg in order to overwrite narrated powerpoints with a custom playback speed.

Requirements

  • Python 3.5+

  • FFmpeg binary in PATH. See here for more information.

Usage

python ppt_playback.py -d="absolute/path/to/dir/" N

where N is a speed value between [0.5, 100.0].

For each powerpoint in the directory, a new powerpoint will be created unless the -o flag is used.

-d is an optional argument. defaults to current working directory.

The following message can be shown using the h or --help flag.

usage: ppt_playback.py [-h] [--quiet] [--overwrite] [--dir [DIR]] speed

Change the playback speed of powerpoint narration

positional arguments:
  speed                 desired playback speed

optional arguments:
  -h, --help            show this help message and exit
  --quiet, -q           surpress FFmpeg stdout messages
  --overwrite, -o       overwrite the powerpoint
  --dir [DIR], -d [DIR]

Tested on the following platforms

  • Ubuntu 20.04/20.10

  • Windows 10

Should also work on any platform that meets the requirements.

Inspired by the PowerPointAudio-Extractor script.

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