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This is done by turning on the Sync Tracks setting, all tracks will be multiples of the first recorded track if length is synced and if start is synced the start points of the recordings will also be synced, this setting also works in Quantized mode.
You can also choose to take this further by actually creating a quantized song part from a freeform recording by setting the Song Grid Mode song setting to Auto. This automatically quantizes a track to a tempo by analyzing the start and length. There are several other parameters involved, read more about Autoquantize in the Features and Behaviors section of the manual.
Sync Tracks
The Aeros will designate the current longest track in Quantized/Auto mode or the shortest track in freeform as the base track. The base track will decide the behavior of the other tracks around it.
Sync Length:
After the first track is recorded, all tracks will be forced to be proportional to the length of the base track. In Quantized mode, all tracks will be forced to be any whole number multiple (x2, x3, x4, Etc) or whole number unit fraction (1/2, 1/3, 1/4, 1/5, Etc) of the base track.
For example, if the base track is 12 measures long, other tracks will be forced to be either 1, 2, 3, 4, 6, 12, 24, 36, etc. measures long depending on when the end recording/start playback command is received. In freeform, all tracks will be whole number multiples of the base track (no fractions allowed).
A new track recording can be started at the beginning of the next measure in Quantized mode or immediately in Freeform so this feature only affects when recording stops and playback begins.
Sync Start and Length:
In addition to the Sync Length rules above, after the first track is recorded in the song part, all new recordings will begin at the next start of the longest track loop in the song part.
Autoquantize
Turn on Autoquantize mode by choosing the ‘Auto’ option in the ‘Song Grid Mode’ song setting when creating a new song or editing an empty one. A song can either be Quantized, Freeform or Auto.
Autoquantize mode will create a quantized song out of a freeform recording you make live. It does this on the fly!
The Aeros uses an algorithm to define the tempo of the recording you just made based on the start and stop point of your recording.
If you know how long your first track in the song part will be, you can use the ‘Set Length’ setting to decide how many measures the recording will be quantized to. This makes it possible to get a tempo within the 40-300BPM range. Set length can be a maximum of 16 measures.
If you do not know how many measures long your first track in the song part will be, make sure to have Set Length on Auto. If set to Auto, the Aeros will quantize your track to be either 1, 2, 4, 8, or 16 measures in a Tempo range that you can set yourself. To set the Tempo Range use the ‘Auto BPM Range’ setting. The most common setting is 80-160BPM.
If the Multi-tempo song setting is enabled, you will set the Aeros to Autoquantize the first track of every part. If it is disabled, the Aeros will only Autoquantize the first track of the very first part and all other tempos in the other song parts will be based on that first song part tempo calculation.
Autoquantize as Transmitter
You can use the Aeros as the MIDI Transmitter (MIDI Master) while in an autoquantized song to control a device, like the BeatBuddy, to start playing back as soon as the track recording is started or committed and the Tempo (BPM) is set.
This makes for a very cool effect where you can come up with an idea on the fly and your drummer already knows the tempo and song form! We suggest setting Start: 1st Recording to Rec Commit (Settings > MIDI >MIDI Out) to send the MIDI Start command once the recording is committed.
To send MIDI Stop every time the Aeros changes to an empty song part you can enable the ‘Send Stop at Empty Part’ setting in the MIDI Out settings (Settings > MIDI > MIDI Out). You may want to do this to stop any drums or playback devices while you record a new autoquantized track in a new part. You likely would not want to hear the drums until your track has been recorded and the new tempo is set in the new song part.