Notch Notch Manual 0.9.23
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FFT Texture

FFT Texture

Generates an image based on the sound an audio source.



Method #

This node generates a texture based on the sound from either a selected or input audio source. The generated texture can then be modified using the same Attack/Decay tools as a sound modifier.

This node can be connected to any node which accepts an image input.


These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.

Position XMove along the local x-axis.
Position YMove along the local y-axis.
Position ZMove along the local z-axis.
Rotation HeadingRotate around the local y-axis.
Rotation PitchRotate around the local x-axis.
Rotation BankRotate around the local z-axis.
Scale XScale along the local x-axis.
Scale YScale along the local y-axis.
Scale ZScale along the local z-axis.

Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.

Position XToggle inheritance of the X Position from the parent.
Position YToggle inheritance of the Y Position from the parent.
Position ZToggle inheritance of the Z Position from the parent.
Rotation HeadingToggle inheritance of the Rotation Heading from the parent.
Rotation PitchToggle inheritance of the Rotation Pitch from the parent.
Rotation BankToggle inheritance of the Rotation Bank from the parent.
Scale XToggle inheritance of the X Scale from the parent.
Scale YToggle inheritance of the Y Scale from the parent.
Scale ZToggle inheritance of the Z Scale from the parent.
World Position OnlyInherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit TimeToggle inheritance of time from the parent.

These properties control the core behaviours of the node.

ActiveEnables or disables the effect. Disabling the effect means it will no longer compute, so disabling a node when not in use can improve performance.
Preview In ViewportPreview the effect blended with alpha in the viewport.
Preview RGB In ViewportPreview the colour values in the viewport.
Preview Alpha In ViewportPreview the alpha values in the viewport.
WidthThe resolution of the effect along its width.
HeightThe resolution of the effect along its height.
Update Time ModeHow the generator updates with relation to the timecode.
  • Locked To Timecode : The generator animations are locked to the timecode and the same time will always yield the same result.
  • Running / Loopable : The generator animations are disconnected from the timecode and will loop seamlessly at the end of the layer.
Static Image (Process Only Once)Only process the image once, making a more efficient scene. Animated Post-FX nodes will not function with this enabled.
SoundSound file used to drive the effect.
ChannelWhich audio channel is used.
Frequency BandSets the Band EQ to one of the given presets.
Band EQSelects and weights the frequency bands to be used from the sound file.
Time OffsetOffset the time the clones are modified from the time the waveform is at.
Change ThresholdChanges the threshold for what counts toward the effect.
AttackControls the initial time between the current values to the peak.
DecayControls the time between the peak to the sustain level.
Min ValueActs as a minimum threshold for extracting a range of values from the waveform.
Max ValueActs as a maximum threshold for extracting a range of values from the waveform.
Max ClampA maximum value which values will be clamped if they go above.
SpikinessAccentuates peaks in the waveform so they are sharper.
ScaleHow much the output values are scaled.
OffsetOffset all values output by the texture.
SmoothnessHow much smoothing is applied between differing values.
Falloff RangeRange in which the sounds data will be tracked.
WaveformVisualises the waveform of of the sound.

These properties control how the generators are coloured and blended with other images.

ColourChange the colour of the generated image.
Blend AmountThe amount the generator is blended with the output.
Blend ModeChoose how the image blends with the scene. See Blend Modes for details.
  • Solid : The generator is solid, with a filled alpha channel.
  • Blend : The generator RGBA values have matching alpha channels.
  • Pre-Mul Blend : The RGB values are solid white, and the generator colours are stored in the alpha channel alpha. Usually gives the best results for colour blending.


NameDescriptionTypical Input
SoundUse an input sound to override the sound attribute.Play Sound
Colour RampSpecify a range of colours the generator can use through its gradient.Colour Ramp
Transform ModifiersApply the transforms of another node to this node.Null
Target NodeModifiy the rotations of the node to always direct the z axis towards the input.Null
Local Transform OverrideApply the transforms of another node to this node, relative to its parent.Null