CAKEWALK sonar x3, Справочное руководство

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AudioSnap (Producer and Studio only)
Synchronizing audio and the project tempo
Synchronizing audio and the project tempo
There are many reasons why you may want to synchronize audio clips with the project tempo. The
following list presents a few common examples.
AudioSnap provides two ways to quickly synchronize audio and the project tempo map:
•
Applying an audio clip’s internal tempo map to the project’s global tempo map. Use this
method if you want the project tempo to match an audio clip’s tempo and have audio beats
aligned with the project’s time ruler.
This is useful in the following scenarios:
• If you recorded an audio track without using the metronome, and you want the project’s
measure and beat boundaries to align with the audio. For example, you may have recorded
an audio track that you would like to use as the tempo reference when recording additional
tracks.
• If you want both audio and MIDI edits to snap to audio beats.
• If you want to use the
Quantize and Groove Quantize commands on audio clips, and have
audio beats quantized correctly.
• If you want to remix an existing song that has been imported into SONAR (from an audio CD
or MP3 file, etc.). In order to add new drum loops and MIDI instruments that play in time with
the original song, you need to create a tempo map from the original song.
For details, see “To sync the project tempo to an audio clip” on page 657.
• Applying the project’s tempo to a clip’s tempo map. Use this method if you want a clip to
follow the project tempo.
This is useful in the following scenarios:
• If you want to synchronize new audio with existing audio.
• If you want to tighten up a new audio track so it fits well with the timing and tempo of an
existing track.
• If you want to globally change the project’s tempo after audio has been recorded.
For details, see
“To sync an audio clip to the project tempo” on page 657 and “To copy the project
tempo to an audio clip’s tempo map” on page 657.
How does it work?
Each audio clip has an internal tempo map, which makes it possible to synchronize the audio clip
with the project’s global tempo map (see
“Editing a clip’s tempo map” on page 659).
SONAR automatically creates a tempo map for each audio clip. In some cases, SONAR can detect
the wrong tempo. For example, SONAR might detect a tempo of 120 BPM when the actual tempo is
240 BPM, or a beat may be mapped to the wrong transient. You can easily remap the tempo map, if
necessary.
You should make sure a clip’s internal tempo map is correct before using any of the tempo-related
commands in the AudioSnap palette. For details, see
“Editing a clip’s tempo map” on page 659.