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English Current (1.3.x)
English Current (1.3.x)
  • Welcome to LMMS
  • Getting Started
    • FAQ
    • Installation
    • Settings
    • Troubleshooting
    • Reporting a Bug
  • Navigating LMMS
    • Interface Overview
    • Main Menu Bar
    • Toolbar
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    • Instrument Window
    • Song Editor
    • Pattern Editor
    • Piano Roll
    • Automation
    • Mixer
    • Project Notes
    • Controller Rack
  • PRODUCTION
    • Safety
    • Jumping Right In
    • Instruments: Samples & Presets
    • Creating a Track
    • Using MIDI
    • Using VSTs
    • Exporting a Song
    • Your First Song with LMMS
  • Instruments
    • AudioFileProcessor
    • BitInvader
    • FreeBoy
    • GIG Player
    • Kicker
    • LB302
    • Mallets
    • Monstro
    • NEScaline
    • OpulenZ
    • Organic
    • PatMan
    • SF2 Player
    • sfxr
    • SID
    • Triple Oscillator
    • Vibed
    • Watsyn
    • ZynAddSubFX
    • VeSTige
  • Effects
    • Effects Prologue
    • Amplifier
    • BassBooster
    • Bitcrush
    • Compressor
    • Crossover Equalizer
    • Delay
    • Dual Filter
    • Dynamics Processor
    • Equalizer
    • Flanger
    • Multitap Echo
    • Peak Controller
    • ReverbSC
    • Spectrum Analyzer
    • Stereo Matrix
    • StereoEnhancer
    • Waveshaper
    • LADSPA Plugins
  • Resources
    • Glossary
    • Key Mappings
    • Video Tutorials
    • Sample Resources
    • SoundFont Resources
    • VST Resources
    • Music Making Resources
    • Miscellany
  • Legal
    • License
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On this page
  • Spectrum Analyzer in 1.2 and earlier
  • Graph
  • Buttons
  • Spectrum Analyzer in 1.3 and later
  • Buttons
  • Drop-down Menus
  • Graph
  • Advanced

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  1. Effects

Spectrum Analyzer

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Last updated 4 months ago

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Spectrum Analyzer in 1.2 and earlier

This plugin visualizes the frequencies present in the signal it monitors.

Graph

  • Y axis: shows amplitude from 40 dB to -60 dB (displayed linearly with respect to decibels).

Buttons

  • Linear Spectrum: toggles linear display of frequencies (rather than by octaves).

  • Linear Y axis: toggles linear display of amplitude (rather than by decibels).

Spectrum Analyzer in 1.3 and later

Buttons

  • Waterfall:

  • Averaging: enables averaging of display frames.

  • Stereo: enables the display of LR channels independently, with the Left channel represented by Blue and the Right channel by Red.

  • Peak hold: enables a "ghost" line that shows the peaks of the spectrum.

  • Pause/Play button: enables/disables the plugin.

  • Snowflake: freezes plugin display (along with the data displayed).

Drop-down Menus

    • Blackmann-Harris displays the least noise but has low frequency resolution.

    • Rectangular displays the most noise but has high frequency resolution.

Graph

  • X axis: shows frequencies based on the Frequency range drop-down menu.

  • Y axis: shows amplitude based on the Amplitude range drop-down menu.

Clicking in the spectrum/waterfall display adds a ruler/cursor with value readouts.

Advanced

  • Envelope Res: alters the resolution of the Peak envelope ("Peak Hold").

  • Spectrum Res: alters the resolution of the display curve with fill-in color.

  • Falloff Factor: alters the speed at which the peak envelope ("Peak Hold") falls to zero.

  • Averaging Weight: alters how the display curve reacts to new samples.

    • High value: fast reaction, low jitter reduction. enables real-time spectrogram.

    • Low value: slow reaction, high jitter reduction.

  • Waterfall Height: alters the time range, or the amount of temporarily stored frames, of displayed frequencies in the Waterfall display.

  • Waterfall Gamma: alters the amount of gamma correction in the Waterfall display.

  • Window Overlap: alters how many times each FFT sample is processed (higher values can help improve FPS).

  • Zero Padding: improves resolution when using a smaller FFT Block size, at the cost of performance.

X axis: shows frequencies from 20 Hz to 20,000 Hz, divided into (this makes the X axis appear nonlinear).

Frequency Range : alters the range of displayed frequencies.

Amplitude Range : alters the range of displayed amplitude.

FFT Block Size : alters the frequency resolution of the display (Higher resolutions come at the cost of FPS).

FFT Window Type : changes algorithm used to remove FFT-related noise.

octaves
Spectrum Analyzer
Spectrum Analyzer