Encoder Options for MP1 / MP2 Audio Files

Sample Rate

Select the sample rate to use for the output file. A higher sample rate will result in a better quality output. Supports LSF (Low Sampling Frequencies: 16kHz, 22.05kHz, 24kHz) ans Non-LSF (32kHz, 44.1kHz, 48kHz)

Channels

Selects whether the output file will be Mono (1 Channel) or Stereo (2 channels).

Bit Rate

Selection are based on the ISO/IEC 11172-3 and ISO/IEC 13818-3 (LSF - Low Sampling Frequencies) specifications which define several bit rates depending on the sampling rate and the number of channels (changing the sample rate and channels may change the selection of bit rates)

Emphasis Type

Specifies the type of de-emphasis filter that should be used when the encoded stream is decoded. Values are: None, 50/15 ms, Reserved, CCITT J.17

Coding Mode

Stereo for 2-channel audio, or single channel for 1-channel audio. In Layer 2 (MP2) 2-channel audio, the encoder also supports dual channel and joint stereo.

Copyright

Specifies whether to set the copyright bit in the MPEG audio stream.