Edward1 wrote:How can I set up to record just in mono tracks?
Set the "number of channels" to "1 (mono)" in the
device toolbar
Note that if you are using a 2 channel sound card / audio device, the "mono" input is usually the "Left" channel (may be marked as "Channel 1").
Edward1 wrote:Can I save an audio file that was originally stereo and mix those two tracks to one mono file?
Yes you can do that.
There are two approaches:
Method 1
Split the track into two mono tracks, then delete the track that you don't want.
See:
http://manual.audacityteam.org/man/spli ... racks.html
This is the method that you should use when the "stereo" track was recorded from a mono input source (such as from a single microphone).
Method 2
Mix the stereo track to mono.
See:
http://manual.audacityteam.org/man/trac ... tereo_mono
This is the method that you should use when it is a "true stereo" recording (when some sounds are more to the left and other sounds are more to the right).
Edward1 wrote:Why does ACX prefer us to record audiobooks in mono files?
MP3 encoding always loses some amount of sound quality. The more data "bits" that are available, then the less the quality degradation. For a given number of "bits per second" (or "kilobits per second" kbps), mono gives better sound quality. If there is only one audio channel (mono), then the encoding can use all of those data bits for that one channel. If there are two channels (stereo) then the encoding has to share the available bits between the two channels, so there are less bits available per channel.
Edward1 wrote:What if one has music and sound effects with a project?
If stereo music is important, then use stereo and distribute through a service that supports stereo (not ACX).