Splitting an MP3 into two separate files
(Before you try to export MP3 files, read the section on
Exporting MP3 Files for some
important information on steps you need to do first.)
- Open the MP3 file.
- Select the part of it that you want to be the first file.
Listen to it by clicking the Play button.
- While this part is selected, choose
Export Selection as MP3... from the File menu.
- Now select the part you want to be the other song and
Mixing background music with a voiceover
Audacity makes it very easy to mix two different sounds together.
- Open one sound (for example, the background music).
- Select Import Audio... from the Project menu and open
the other sound (for example, the voiceover).
- Listen to your sound using the Play button. Audacity
automatically mixes them together.
- Choose the Time Shift tool
and adjust the position of one track or the other until
they're synchronized the way you want them.
You can even move tracks around while they're playing.
- If you hear clipping which wasn't present in either of the
original files, it means that the combined volume of the two
tracks is too loud. Use the gain controls on the tracks to reduce the
volumes until you don't hear clipping anymore.
- Export as a WAV or MP3 file.
Recording harmonies with yourself
- Open the Preferences, click on the Audio I/O tab, and
check the box marked "Play other tracks while recording new one".
- Click the Record button. Record yourself singing. Click Stop.
- Click the Record button again.
The first track you recorded will play, but Audacity
will also record a new track at the same time, allowing
you to sing harmony with yourself.
- When you play the two tracks you recorded
together, they probably won't be synchronized.
This is normal and is not the
fault of Audacity. To fix it, you will need to grab the
Time Shift tool and slide one
of the tracks around until it sounds right.
Recording two sound sources on separate tracks
- Open the Preferences, click on the Audio I/O tab, and make sure
"Record in Stereo" is checked.
- Connect one sound source to the left channel of your soundcard
and the other on the right. If you don't have an external mixer with a
pan control, use a stereo/mono splitter cable.
- Record your stereo track.
- On the button with the track name is a drop-down menu. Select
"Split Stereo Track" from this menu.
- Use the drop down menu again to change each track to mono.
- To position sounds in the stereo image use the pan control on each track.
- To export your recording in stereo you need to include at least one
Stereo track. If necessary add a blank one using Project > New Stereo Track.
- Repeat as necessary for further tracks (see
Recording harmonies with yourself above). If
mastering from tape, a click recorded across all tracks will help you
synchronize them in Audacity.