Resample CHOP

From Derivative
Jump to navigation Jump to search

Summary
[edit]

The Resample CHOP resamples an input's channels to a new sample rate and/or start/end interval. In all cases, the entire input interval is resampled to match the output interval.

Resample does a simple linear interpolation of the Time Slice in Time Slicing mode. Only the sample rate can be changed.

PythonIcon.pngresampleCHOP_Class


Parameters - Resample Page

Method method - - The resample method to apply to the channels:

  • Same Rate, New Interval strech - Stretches or compresses the channels like the Stretch CHOP.
  • New Rate, Same Time Range preserve - Changes the sample rate without changing the time-length of the CHOP.
  • New Rate, Same Index Range index - Changes the sample rate without changing the number of samples in the CHOP.
  • New Rate, New Interval newint - Changes both the sample rate and stretches/compresses the CHOP.

Sample Rate rate - The new sample rate.

Unit Values relative - - Determines how the Start/End parameters are interpreted.

  • Absolute abs - The value is the new start/end position.
  • Relative to Start/End rel - The value is a shift from the old start/end position.
  • Relative to Current Frame cur -

Start start - The CHOP's new start position.

Start Unit startunit -

End end - The CHOP's new end position.

End Unit endunit -

Quaternion Blend quatrot - Uses quaternions to blend between samples.

Interpolation interp - - The interpolation method to use when resampling:

  • No Interpolation nointerp - Use the value of the nearest sample.
  • Linear linear - Use linear interpolation between samples when the output has more samples. Averages all samples near the new sample when the output has fewer samples.
  • Cubic cubic - Cubically interpolates between samples, for smoother curves than Linear. This method is not recommended for channels with sharp changes.
  • Pulse Preserve edge - A linear interpolation that recognizes single sample pulses and preserves their height and one-sample width. A pulse is a non-zero value proceeded and followed by zero-value samples.

Constant Area constarea - If enabled, keeps the area under the channel constant by scaling the values of the channel.

Correct for Cycles correct - If enabled, compensates for cyclic channels (such as angles) by always choosing the shortest step between samples, like 360 to 0 for angles.

Cycle Length cyclelen - The length of the cycle. 360 is typical for angles.


Parameters - Common Page

Time Slice timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.

Scope scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.

Sample Rate Match srselect - - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.

  • Resample At First Input's Rate first - Use rate of first input to resample others.
  • Resample At Maximum Rate max - Resample to the highest sample rate.
  • Resample At Minimum Rate min - Resample to the lowest sample rate.
  • Error If Rates Differ err - Doesn't accept conflicting sample rates.

Export Method exportmethod - - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.

  • DAT Table by Index datindex - Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
  • DAT Table by Name datname - Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
  • Channel Name is Path:Parameter autoname - The channel is the full destination of where to export to, such has geo1/transform1:tx.

Export Root autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.

Export Table exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).


Operator Inputs

  • Input 0 -
  • Input 1 -

TouchDesigner Build:

CHOPs
Ableton Link • Analyze • Angle • Attribute • Audio Band EQ • Audio Device In • Audio Device Out • Audio Dynamics • Audio File In • Audio File Out • Audio Filter • Audio Movie • Audio NDI • Audio Oscillator • Audio Para EQ • Audio Play • Audio Render • Audio Spectrum • Audio Stream In • Audio Stream Out • Beat • Bind • BlackTrax • Blend • Blob Track • Bullet Solver • Clip Blender • Clip • Clock • Composite • Constant • Copy • Count • CPlusPlus • Cross • Cycle • DAT to • Delay • Delete • DMX In • DMX Out • Envelope • EtherDream • Event • Expression • Extend • Face Track • Fan • Feedback • File In • File Out • Filter • FreeD • Function • Gesture • Handle • Helios DAC • Hog • Hokuyo • Hold • Import Select • In • Info • Interpolate • Introduction To CHOPs id • Inverse Curve • Inverse Kin • Join • Joystick • Keyboard In • Keyframe • Kinect Azure • Kinect • Lag • Laser • Leap Motion • Leuze ROD4 • LFO • Limit • Logic • Lookup • LTC In • LTC Out • Math • Merge • MIDI In • MIDI In Map • MIDI Out • Mouse In • Mouse Out • NatNet In • Ncam • Noise • Null • Object • Oculus Audio • Oculus Rift • OpenVR • OSC In • OSC Out • Out • Override • Panel • Pangolin • Parameter • Pattern • Perform • Phaser • Pipe In • Pipe Out • PosiStageNet • Pulse • RealSense • Record • Rename • Render Pick • Reorder • Replace • Resample • S Curve • Scan • Script • Select • Sequencer • Serial • Shared Mem In • Shared Mem Out • Shift • Shuffle • Slope • SOP to • Sort • Speed • Splice • Spring • Stretch • Stype • Switch • Sync In • Sync Out • Tablet • Time Slice • Timeline • Timer • TOP to • Touch In • Touch Out • Trail • Transform • Transform XYZ • Trigger • Trim • Warp • Wave • WrnchAI • ZED