BitRate
✖
BitRate
[Experimental]
✖
is an option that specifies an approximate number of bits per second when creating video and audio files.
Details

- BitRate specifies the approximate number of bits that are stored in a video file per second. Higher bit rate typically results in higher video or audio quality as well as larger file sizes.
- The quality of a video is typically defined by its frame resolution and frame rate as well as the video and audio bit rates.
- Typical settings for BitRate include:
-
Automatic automatically chosen val the average number of bits per second {valv,vala} bit rate separately specified for audio and video tracks <"Video"valv,"Audio"vala} bit rate separately specified for audio and video tracks - Typical video bit rate ranges for H.264, HEVC and VP9 codecs are:
-
2160p 40-60 Mbps for 30 fps, 50-80 Mbps for 60 fps 1080p 8-10 Mbps for 30 fps, 12-15 Mbps for 60 fps 720p 5-6.5 Mbps for 30 fps, 7.5-9.5 Mbps for 60 fps - Typical audio bit rates are:
-
mono 128 Kbps stereo 384 Kbps 5.1 512 Kbps
Examples
Basic Examples (1)Summary of the most common use cases
Check the bit rate of an existing video:
In[13]:=13

✖
https://wolfram.com/xid/0cg5s2m5i-jjtmk
Out[14]=14

Transcode the video into an MP4 file using the default bit rate:
In[15]:=15

✖
https://wolfram.com/xid/0cg5s2m5i-7qrnb2
Out[16]=16

Specify the approximate bit rate:
In[29]:=29

✖
https://wolfram.com/xid/0cg5s2m5i-bigeee
Out[30]=30

The file with smaller bit rate is typically smaller:
In[31]:=31

✖
https://wolfram.com/xid/0cg5s2m5i-nwrkog
Out[31]=31

Wolfram Research (2021), BitRate, Wolfram Language function, https://reference.wolfram.com/language/ref/BitRate.html.
✖
Wolfram Research (2021), BitRate, Wolfram Language function, https://reference.wolfram.com/language/ref/BitRate.html.
Text
Wolfram Research (2021), BitRate, Wolfram Language function, https://reference.wolfram.com/language/ref/BitRate.html.
✖
Wolfram Research (2021), BitRate, Wolfram Language function, https://reference.wolfram.com/language/ref/BitRate.html.
CMS
Wolfram Language. 2021. "BitRate." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/BitRate.html.
✖
Wolfram Language. 2021. "BitRate." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/BitRate.html.
APA
Wolfram Language. (2021). BitRate. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/BitRate.html
✖
Wolfram Language. (2021). BitRate. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/BitRate.html
BibTeX
✖
@misc{reference.wolfram_2025_bitrate, author="Wolfram Research", title="{BitRate}", year="2021", howpublished="\url{https://reference.wolfram.com/language/ref/BitRate.html}", note=[Accessed: 08-July-2025
]}
BibLaTeX
✖
@online{reference.wolfram_2025_bitrate, organization={Wolfram Research}, title={BitRate}, year={2021}, url={https://reference.wolfram.com/language/ref/BitRate.html}, note=[Accessed: 08-July-2025
]}