Your Complete Video Toolbox

Wondershare UniConverter

  • Change video/audio bitrate easily to reduce the file size.
  • Customize other settings to compress video/audio files without any quality loss.
  • Support 1,000+ video/audio formats to convert and compress.
  • Versatile toolbox combines Screen Recorder, GIF Maker, Fix Video Metadata, etc.
change video/audio bitrate

Compress Videos

1. Compress Video/Audio in Different Formats+
  1. 1.1 Compress MP4 on Winodws & Mac
  2. 1.2 Reduce Size of MP4
  3. 1.3 Resize MP4 Videos Online
  4. 1.4 Compress MP4 Online
  5. 1.5 Free MP4 Compressors
  6. 1.6 Compress FLV
  7. 1.7 Compress MKV
  8. 1.8 Compress MOV
  9. 1.9 Compress MOV Online
  10. 1.10 Compress WMV
  11. 1.11 Comrpess M4V
  12. 1.12 Compress MPEG/3GP
  13. 1.13 Compress H264 File
  14. 1.14 Compress AVI File
  15. 1.15 Reduce Size of MKV
  16. 1.16 Top 5 WebM Compressors
  17. 1.17 Compress WAV Free Online
  18. 1.18 FLAC Compression Software
  19. 1.19 Top 5 Online MP3 Size Reducers
  20. 1.20 Compress M4A Files Free Online
2. Compress Video from Devices/Apps +
  1. 2.1 Compress iPhone Video
  2. 2.2 Compress Camcorder Video
  3. 2.3 Compress GoPro Video
  4. 2.4 Compress QuickTime Video
  5. 2.5 Compress Fraps Video
  6. 2.6 Top 12 File Compressor for Android
  7. 2.7 MMS Video Size Limit for iPhone/Android
  8. 2.8 Shorten Videos on iPhone
  9. 2.9 10 Video Compressor App Android/iPhone
  10. 2.10 Top 8 Video Size Reducers for Android
3. Compress Video with Different Apps +
  1. 3.1 Resize Video in iMovie
  2. 3.2 Make VLC Resize Video
  3. 3.3 Make Windows Movie Maker Resize Video
  4. 3.4 Different Apps to Compress Video
  5. 3.5 Compress Videos with Windows Media Player Alternatives
  6. 3.6 Use FFmpeg to Resize Video
  7. 3.7 Apple Compressor 4 Alternative
  8. 3.8 Top 6 Clipchamp Alternatives
  9. 3.9 Top 7 Video Cutter and Compressor
  10. 3.10 HandBrake Video Compressor Alternative
4. Compress Video for Different Purposes +
  1. 4.1 Compress Video for Email
  2. 4.2 Compress Video for Web
  3. 4.3 Compress Video for YouTube
  4. 4.4 Compress Video for Vimeo
  5. 4.5 Compress Video for Facebook, Instagram
  6. 4.6 Twitter Video Compression
  7. 4.7 Resize Facebook Video Size
  8. 4.8 Resize Instagram Video Size
  9. 4.9 Compress YouTube Video Size
  10. 4.10 Compress Video for DVD
  11. 4.11 Send Large Files via Email
  12. 4.12 Compress Files for WhatsApp
  13. 4.13 Send Long Videos on WhatsApp
5. Other Tips & Tricks +
  1. 5.1 Full Guide to Compress Video
  2. 5.2 Free Video Compressors
  3. 5.3 Top 13 Video Compressors
  4. 5.4 Top 10 Video Compressor for Mac
  5. 5.5 Top Audio Compressors
  6. 5.6 Top 8 Audio Compressor Free Online
  7. 5.7 Compress Files to Small Size
  8. 5.8 Compress HD/FHD (4K/1080P) Videos
  9. 5.9 Compress A Video
  10. 5.10 Compressed Video Formats
  11. 5.11 Top 8 Compression Software 2019
  12. 5.12 Top 9 File Compressors
  13. 5.13 How to Make A File Smaller
  14. 5.14 How to Make Video Smaller
  15. 5.15 Lossless Compression
  16. 5.16 Top 10 Ways to Reduce Video Size
  17. 5.17 Compress Files & Folders
  18. 5.18 Compress Folder Online and Free
  19. 5.19 Top 6 Online Size Converters
  20. 5.20 Top 10 Ways to Send Large Videos
  21. 5.21 Top 5 Video Resizer
  22. 5.22 Top 6 File Size Reducer
  23. 5.23 Shorten a Video Online and Free
  24. 5.24 Change MP4/MP3 Bitrate
  25. 5.25 11 Ways to Compress Videos Free Online

What is Bitrate and How to Change MP4/MP3 Bitrate with Simple Steps

by Christine Smith • 2020-06-23 21:05:14 • Proven solutions

In most simple terms, the bitrate is defined as the rate at which data is transferred or processed. When it comes to the encoding of multimedia files, the bitrate is defined as the bits which are used for per unit of playback time, thus size and quality of the multimedia file is often dependent on the bitrate which is used during the process of encoding. In many situations, you need to change video bitrate and audio bitrate along with other file parameters. Following part of the article will discuss what is bitrate and the best ways on how to change video/audio bitrate.

Part 1. What is Bitrate

Bitrate which is also known as the data rate is measured in seconds, and defines the rate at which the data passes through the communication network. Both video and audio have bitrate, and understanding what they are can help you handle with your media files better.

1. What is Video (MP4) Bitrate

Video bitrate is defined as the number of bits which are processed and the unit is measured in bits per second value. It is the speed at which video is transmitted in a given time. Higher the mp4 bitrate, larger the data transfers in a given time. The apt bitrate for a video can be adjudged on the basis of the device on which it will be played. A good quality video in a web has a bitrate of an approx value of 2mbps while a standard definition DVD has 6mbps.

2. What is the Audio (MP3) Bitrate

Audio bitrate is defined as the number of bits which are used for playback time per unit to represent audio after source coding. It is defined as the compression rate which is used for encoding the files in the audio aspect. Higher the MP3 bitrate better will be quality of the sound and also the file size.

Part 2. How to Choose the Right Bitrate for Your Video/Audio

After learning the definition about video bitrate and audio bitrate, you need to know how to choose the right bitrate for your video or audio files. As the bitrate is related to the quality and size of your video and audio, it's important to select and change bitrate for your file. Two most frequently asked questions are list below:

1. What is a Good Bitrate for 1080p to upload to YouTube

For YouTube upload, recommended video bitrate for 1080p file is 8 Mbps for standard frame rate (24, 25, and 30). For High Frame rate, (48, 50, 60) recommended bitrate for 1080p file is 12 Mbps.

2. Which Bitrate is the Best for iTunes Audio

The music files at the iTunes store are coded in AAC format with 256 kbps of bitrate by default. Earlier the iTunes song bitrate used to be 128 kbps which is now 256 kbps. Up to 320 kbps is supported by AAC codec files.

Part 3. How to Change Video Bitrate with Simple Steps

There are many ways to compress a video such as changing video resolution, cutting unwanted part, and convert video format. However, changing video bitrate is also a good choice. Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is such a video compressor which will help you compress video size with changing bitrate, adjusting video resolution, trimming and cropping videos, and converting video formats. You can even finish the whole process within 3 steps. Wondershare UniConverter is compatible with Windows and Mac system, download and install it to change the video bitrate and compress video without losing any quality, follow the steps below.

Wondershare UniConverter - Your Complete Video Toolbox for Windows/Mac

  • Compress video by customize video bitrate, changing video resolution, converting formats, and editing video.
  • Support 1,000+ video formats to compress and convert without any quality loss.
  • Edit videos with features of cropping, trimming, rotating, adding watermarks, and others.
  • Check compressed video quality with real-time preview.
  • Download videos from YouTube and other 10,000+ video sharing sites by pasting URL.
  • Supports batch processing to compress and convert multiple files at a time.
  • Toolbox with additional functions like Screen Recorder, VR Converter, GIF Maker, Fix Media Metadata, Cast to TV, and more.
  • Supported OS: Windows 10/8/7/2003/Vista/XP, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
Security Verified. 5,481,347 people have downloaded it.

Steps on how to change video bitrate using Wondershare UniConverter:

Step 1 Launch Wondershare Video Compressor

Download, install, and launch Wondershare UniConverter on your PC or Mac. Choose Video Compress option from the Toolbox tab on the main software interface.

Choose Video Compress option

Step 2 Load Videos to Compress

A new pop-up window will open where click on the + icon to browse and add video from your system. One video at a time can be added.

add videos

Step 3 Change Video Bitrate and Customize Other Settings

A new Compress video window will open with all the details about the added video like file size, format, resolution, quality, and bitrate. To change the bitrate of the added file, move the progress bar and your video bitrate will be changed accordingly. Preview button helps to check the video before compressing.

change video bitrate

Step 4 Compress Video with Bitrate Changed

At Save file: option, choose the location where you want to save the compressed file. Finally, click on the Compress button to start compressing and changing the bitrate of the added video.

compress video

Part 4. MP3 Bitrate Changer to Reduce MP3 Bitrate

In addition to videos, Wondershare UniConverter also facilitates to reduce MP3 bitrate or other audio files as needed. The process is simple and quick. Multiple files can be added to the program interface for batch processing.

Steps on how to change the bitrate of MP3 using Wondershare UniConverter

Step 1 Launch Wondershare MP3 Bitrate Changer and Import Audio Files

Open your Wondershare UniConverter on your PC/Mac, and move to the Convert tab. Click on the +Add Files button to browse and add audio files from your computer.

add audio files

Step 2 Choose Output Format

Added files will appear on the interface as thumbnails with the file details. Click on the drop-down menu next to the Convert all files to: option on the top-right corner, a new window will open. Select the desired output format from the Audio tab.

choose MP3 output format

Step 3 Change MP3 Bitrate

Click on the +Create Custom button and you will open a new Setting window. From the pop-up window, select your desired Bitrate by clicking the drop-down menu. You can also change other settings it provided as your needs. Then click on the Create button to confirm the changes.

change MP3 bitrate

Step 4 Compress and Change MP3 Bitrate

When all changes are done, you can see the MP3 size have been reduced on the interface. Click on the Convert All button to start the batch compressing process. You can also customize MP3 files one by one if you like. Find your compressed MP3 files from the Converted tab.

compress MP3 file

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