What does bitrate mean, and how do I choose one?

Part 2. – Commonly used Bitrates (with examples)

Below is a list of common uses for internet broadcasts, with the appropriate bitrate to use for each. Simply find the description that best matches your needs to see examples of bitrates that may work well for you.

Note: Windows Media Encoder has many bitrate choices, the following bitrates are meant to act as guidelines only.

Audio

Voice only
AM radio

20kbps            - This is an excellent bitrate for broadcasts that are primarily talking. It can also be used for situations where bandwidth issues require a lower bitrate.

Music
FM radio

32kbps            - This is the current industry standard for FM radio broadcasts. IT will work well for any music broadcast, or as a higher quality option for voice broadcasts.

Music (higher quality)

64kbps            - Using this bitrate will provide a higher quality broadcast that works well for delivering near-CD quality music.

CD quality
MP3 quality

128kbps          - This is generally the highest audio bitrate you should use. It will deliver excellent quality. Note: You should compare a 64k broadcast to a 128k broadcast, as many people do not feel the slight increase in quality is worth doubling their bandwidth usage. This is a personal preference decision.