Uncompressed: Outputs audio with no compression, using the specified frequency, channel, and bit depth settings.

Frequency (kHz): Sets the frequency, or the number of times an event repeats, or number of vibrations produced by a signal or sound, in a given period. Frequency is measured in Hz. One Hertz is one cycle per second. In Blaze Media Pro, the settings are listed in kHz, or kilohertz.
Channels: Selects a channel, such as mono or stereo. A stereo signal consists of two separate audio channels, while a mono signal has one. A single audio data file may contain information for one, two, or in some cases, more audio channels. This means that stereo produces better quality sound.
Bit depth: Bit depth is the number of bits used to carry the data in each sample of audio. Click here for more information.

Use Compression: Causes the WAV output to be encoded using the ACM compression codec selected.

Audio Codec: Enabling this option causes the resulting WAV file(s) to use the selected audio codec. The drop-down list contains all of the ACM audio codecs installed on your computer. Remember that some codecs are designed for use only with a specific application, and most codecs are designed to work under certain conditions. Therefore, it is important to select a codec that is compatible with your requirements. As a universal recommendation both for compatibility and file size/quality ratio, MPEG Layer-3 is an excellent choice. Windows Media Audio is also a good choice, though it is not as universally compatible. Both codecs are included automatically with current versions of Windows.
Audio Encoder Format: Most audio codecs can be configured by selecting the sample rate (frequency), bit depth, channels, and/or bitrate. The audio encoder format drop down list provides the options available for the codec selected.