6
Instruments
Optimising Wavetables
The best approach to operating with wavetable synthesis is to use WAV
files that have been created for wavetable use. This will adhere to the frame
and sample conventions stated. Also the audio samples will be created with
smooth rather than stepped transitions between waves. There are many
pre-prepared wavetables available for download but also check out the
online
sheets of sound
creator and Modbap Modular
more about wave creation.
Tracker Mini's factory wavetable files are located in the samples folders on
the SD Card.
Root
/Samples
Wavetable_2048
There are many freely available wavetable samples online. Standard
samples can be used but wavetable formatted WAV files provide better and
smoother performance. The most common standard is 2048 Samples /
Frame (256 Frames). This applies to XFer Serum, U-He Hive, Dune, but
others may also exist. Ableton Live Wavetable uses 1024 samples and
down samples when a 2048 format is applied.
128
NOTES
OsirisEdit
to learn
Polyend Tracker Mini Manual
NOTES
Standard audio files may sound 'stepped' when navigating the position.
Tracker Mini has an on-board optimisation tool, WT Smoother which will
process a standard sample and helps to smooth the sound and give better
performance. This effectively converts the file to a more suitable format for
Tracker Mini's Wavetable Synth. Navigating a processed audio wave will
sound smoother in the transition across positions.
▌ USING WT SMOOTHER TO OPTIMISE SAMPLES
1. Ensure the sample is loaded to the instrument list and selected as
currently active. Note that samples in the instrument list are copied into
the onboard memory from the SD Card.
2. Press [Menu] and navigate to select 'Sample Editor'. Operations in the
'Sample Editor' are performed destructively to the sample in memory.
However the original file is retained intact on the SD Card.
3. Edit the audio file [Start], 1
selects the marker. Press (Up) or (Down) or [+] / [-] to adjust the
positions to select part of the sample to process.
4. Press the 7
th
or 8
5. Press [Select effect], 6
6. Press [Window Num], 1
This selects frames. The 256 default is a typical setting to use. Press
(Up) or (Down) or [+] / [-] to adjust.
7. Press [Window Len], 2
This selects sample length. The 2048 default is a typical setting to use.
Press (Up) or (Down) or [+] / [-] to adjust.
8. Press [Preview], 7
This will need to process the audio before playing. Press [Stop], 7
Screen Button again to stop preview.
9. Press [Apply], 8
th
This converts to a wavetable which can be used in the wavetable play
mode as a smoother more refined option.
10. Save the project to also save the edited instruments in the project
folder. Hold [Shift] + [3] then Press [Save], 5
project also automatically saves the instruments in the instrument
subfolder. These can be accessed from other projects.
Polyend Tracker Mini Manual
Instruments
st
Screen button and [End], 2
nd
Screen Button
th
Screen button to navigate to 'WT Smoother'.
th
Screen button to select WT Smoother.
st
Screen button in the WT Smoother application.
nd
Screen button in the WT Smoother application.
th
Screen button to audition the audio while editing.
Screen button to apply and render the new audio file.
th
Screen Button. Saving the
6
th
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