A backing track is a backing track of a song without a vocal part. Backing tracks are made either by removing vocals by extracting a monophonic component from a stereo signal, or by writing an instrumental version of a song from scratch in a sequencer. There are also original studio backing tracks, in which the vocals were simply not recorded.
It is necessary
Computer, backing track, audio editor, midi-sequencer
Instructions
Step 1
Instrumental versions of songs can appear in a variety of formats. Most often these are audio files, but there are also quite a few midi files that differ from audio in that they contain not a ready-made sound, but a set of sequences for playback. If the backing track chosen for the accompaniment does not correspond to the vocalist's voice range, it may be necessary to change the key of the phonogram. Depending on whether you are using an audio file or midi, the approach to changing the key will be different.
Step 2
The advantage of a midi file is that in addition to transposition to a different key, you can change the entire arrangement in it, choosing the necessary instruments. To do this, open the midi file in a sequencer program such as Steinberg Cubase. To do this, you need to create a new project and then import the midi file into it. The part that needs to be transposed from one key to another, just open it with a double click.
Step 3
After that, you need to select the fragment, the key of which you want to raise or lower, and then drag it along the piano keyboard, shown on the left, down or up by the required number of semitones. This should be done with all melodic and rhythmic parts, except for drums. Then you can change the arrangement as desired using vst-instruments and export the arrangement as an audio file or midi.
Step 4
If the backing track is an audio file, changing the key is even easier. It is enough to open the file in an audio editor, for example, Adobe Audition, select an editable area and click on the Effects menu item. In the menu that appears, select Time and Pitch and click on the Stretch (process) item. The Stretch window will appear. In the lower left corner of the window, check the box on the line Pitch Shift (preserves tempo). Now in the Constant Stretch tab it is enough to choose how many semitones to lower the phonogram. You can listen to the result with the Preview button. When the key is right, you need to click OK and save the file.
