User manual

Constant bitrate: A bitrate of 128 KB per second
has proved itself to be a fairly good compromise
between sound quality and file size. At this bitrate,
audio files, very roughly speaking, are compressed
by somewhat more than a factor of 10. This means
that a normal track of around three to four minutes in
length (in CD quality; in other words 44.1 kHz, 16
Bit, stereo) can be compressed to a 3 - 4 megabyte
MP3 file by these means.
Once you are satisfied with the settings, click on the
'OK' button to close the dialog or make additional
alterations to the expert settings.
Variable bitrate: With a variable bitrate, the audio
file is not encoded with a specified, constant bitrate
but the encoding depends on the individual
elements of the audio file instead. Complex
elements are compressed less than simple ones, so
that the result is an MP3 file that depending on the
desired quality offers the best possible, loss-free
result. The medium quality has proved itself to be a
fairly good compromise between sound quality and
file size. At this bitrate, audio files, very roughly
speaking, are compressed by somewhat more than
a factor of 10. This means that a normal track of
around three to four minutes in length (in CD quality;
in other words 44.1 kHz, 16 Bit, stereo) can be
compressed to a 3 - 4 megabyte MP3 file by these
means.
Once you are satisfied with the settings, click on the
'OK' button to close the dialog or make additional
alterations to the expert settings.
Expert features
The expert features for mp3 encoding are identical
to those available for mp3PRO encoding and are
therefore not explained in detail at this point. Please
read the appropriate sections concerned.