What is Bit Rate?
Bit rate is the number of bits that are being process per unit of time. This essentially means a higher quality video will have more bit rate when compared to a lower quality video. This understanding is useful when comparing the video quality a dash cam produces.
What is Bitrate?
Bit rate is the number of bits that are being processed per unit of time. Bit rate is quantified using bits per second (bit/s). In other words, the more bit rate per second, the more information is packed into that second.
Bit Rate, Codec, and Video Quality
So how does bit rate affect the quality of your video? When more information is packed into a second, the video will be of higher quality when compared to one that has a lower bit rate. This is true when comparing videos that have the same type of compression. However, the compression method used may change the quality of the video despite having the same amount of bit rate.
The type of codec used can affect your video quality. For example, if you have the same bit rate but if you output your video with an older codec such as H.263 instead of H.264, your video will have a considerably lower quality.
NOTE: Bit rate is independent of the resolution, the type of hardware your dash cam uses, frame rate, and codec.
Bit rates of different dash cams
Below are some examples of bit rate found on popular dash cam models: