User Guide

Chapter 12: Wizards, Tutors, and Fun
306
Use to correct pitch of song if necessary.
Exit and send chords to Band-in-a-Box.
Exit without sending chords to Band-in-a-Box.
Chord Detection
Chord Detection accuracy depends on the accuracy of the bar lines. If bar lines are not well-aligned then the Chord
Detection can be expected to be rather poor. It is quick and easy to align the bar lines on most songs, once you get
the hang of it.
The first task is to locate the beginning of Bar One. Since an audio file could have an arbitrary amount of silence at
the beginning of the song, and many songs begin with a pickup partial bar, ACW cannot easily guess the first bar
without a hint from you.
The shortcut keys and mouse playback controls make it easy to find Bar One. Tap the space bar to begin play,
watch the Location Cursor, and listen for the downbeat. If the Location Cursor passes the downbeat and you were
not completely certain of the location, you can tap the W key to rewind to the song beginning and replay the first
part of the song, to audition the downbeat as many times as necessary to make sure of its location.
You can also single-click in the Chords panel to jump the playback position. If the rhythm is unusually complicated
near the downbeat, you could repeatedly click just a little before the suspected Bar One location, to zero-in on the
exact downbeat.
In the following example song, we have discovered the downbeat of Bar One, so we Right Click on that location to
Set Bar One.
Now the Bar One bar line is red (shown below). The
red Triangle bar indicator indicates that we have edited
that bar line. The Red Triangles are called Good Bar
Lines (GBL's). The green Triangle bar indicators are
bar lines which ACW has automatically inferred from
its automatic tempo detection PLUS your edited Good
Bar Lines. We call the green automatic bar lines
Inferred Bar Lines (IBL's).
On this example song, the initial automatic tempo
detection did a pretty good job. Simply setting Bar
One has caused the first four bars to be properly
aligned to the music. On some songs, Set Bar One is
the only action necessary to get good bar alignment for
the ENTIRE tune.
As playback continues in this example (below), we notice that ACW has made its first error approaching Bar 5.
Audio Chord Wizard has estimated the tempo of Bar 4 too slow. But that is easy to fix. If you prefer real-time
control, just tap F8 or the Enter key where the downbeat should actually be.
If you prefer stopped-time editing, you can either mouse-drag Bar 5 to its desired position, or drag the Playback
Location Cursor to the desired position and then tap F8 or the Enter key.