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How do I reduce the size of a video file using software?

Published in Video Conversion 4 mins read

You can reduce the size of a video file by using video editing or conversion software and adjusting various settings like resolution, bitrate, and codec. Here are several options and techniques:

Software Options for Reducing Video File Size

Several software programs can help you reduce the size of your video files. Here are a few popular choices:

  • Movavi Video Converter: This software is known for its user-friendly interface and fast conversion speeds.
  • Freemake Video Converter: A free option offering a wide range of features.
  • VLC Media Player: While primarily a media player, VLC also offers basic video conversion capabilities.
  • VideoProc Converter AI: A powerful converter that utilizes AI for better compression.
  • VSDC Video Converter: Another free option with a variety of features.
  • FFmpeg: A command-line tool offering granular control over video conversion (more advanced).
  • HandBrake: A free and open-source transcoder, very popular and effective for reducing video file size.

Techniques to Reduce Video File Size

Here's a breakdown of the common methods used by these programs:

  • Lowering the Resolution: Reducing the resolution (e.g., from 1080p to 720p or 480p) significantly decreases the file size. This results in a less detailed image.

  • Reducing the Bitrate: Bitrate determines the amount of data used per second of video. Lowering the bitrate reduces file size, but also image quality. Experiment to find a balance between file size and acceptable quality.

  • Changing the Codec: Codecs are algorithms used to compress and decompress video data. H.264 is a commonly used codec that provides a good balance between quality and file size. H.265 (HEVC) is a more efficient codec that can achieve even smaller file sizes with similar quality, but may not be universally supported.

  • Reducing the Frame Rate: Frame rate (frames per second, or fps) determines how many frames are displayed per second. Reducing the frame rate (e.g., from 60 fps to 30 fps) can reduce file size, but can also make motion appear less smooth. This is more noticeable in videos with a lot of fast action.

  • Cropping: If the video contains unnecessary borders or sections, cropping can remove those parts, reducing file size.

  • Optimizing Audio: Lowering the audio bitrate or converting the audio to a more efficient codec (e.g., AAC) can also contribute to a smaller file size.

Example using HandBrake

HandBrake is a free and powerful tool. Here's a simplified example of how to use it:

  1. Open HandBrake: Launch the HandBrake application.
  2. Select Source: Choose your video file as the source.
  3. Choose Preset: Select a preset appropriate for your needs (e.g., "Fast 720p30" for a smaller file with decent quality).
  4. Adjust Settings (Optional): You can customize the settings further, such as the bitrate, codec (H.264 or H.265), and resolution. Experiment to find the best balance for your needs.
  5. Set Destination: Choose a location and filename for the converted video.
  6. Start Encode: Click "Start Encode" to begin the conversion process.

Tips for Balancing Quality and File Size:

  • Experiment: Different videos will compress differently. It's important to experiment with different settings to find what works best for each video.
  • Preview: Most video converters allow you to preview a short section of the video with the new settings before converting the entire file. Use this feature to check the quality before committing to a full conversion.
  • Consider the Intended Use: If the video is only going to be viewed on a small screen (e.g., a mobile phone), you can afford to reduce the resolution and bitrate more aggressively than if it's going to be viewed on a large TV screen.

By using the right software and carefully adjusting the settings, you can significantly reduce the size of your video files without sacrificing too much quality.

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