Freeware LED Spectrum Analyser 2.0 for iTunes

LED Spectrum Analyser 2.0 for iTunes is a colorful visualizer for iTunes that emulates a LED Spectrum Analyzer, with lots of customization available of layout, colors, meter ballistics and much more. A complete rewrite of a similar earlier release for SoundJam, with many new features.

LED Spectrum Analyser 2.0 for iTunes weighs in at just 300K and is free.

More info and download link here.


  1. I think it’s very cool. I like visualizers that have an immediate and obvious response to the music. This is 100% response! It also looks high-tech and is very customizable. Hit Options (when visualizer is NOT full-screen) to set colors, enable album info, etc.–and to make the animation full-screen instead of the tiny default.

    Pet peeve: visualizers that use Best for LCD subpixel font antialising even when the display runs at a non-native full-screen res. The characters get weird colors! Just nitpicking.

  2. I will take it. Anything to make itunes look more exciting while playing. I am not diggin’ that psychodelic screen saver built into it. Hopefully more options will follow.

  3. Spectrum analyzers actually have a purpose beyond looking cute. One of their more common uses is to quickly calibrate your audio system. If you input white noise (equal levels of all audio frequencies) to your system, the spectrum analyzer (used with a calibrated microphone) will display what frequencies ranges are weak. Using an equalizer, you adjust those frequencies until the output resembles the input. At that point, you will be able to hear the music as it was recorded. This simple method compensates for all factors including carpeting and furniture arrangement, and gives the listener the best possible reproduction of the music given their current environment.

    Unfortunately, these very useful devices have fallen into the hands of the general public that prefer to ignore the musicians’ and engineers’ intensive efforts to create well-balanced music, and would rather use the devices to grotesquely distort the art and to watch cute bouncing lights.

    When quality vanishes, the artistry and talent soon follows, and all that remains is noise; and it is true for anything we no longer cherish.

    Evil will enter when good people do nothing.

  4. Aryugaetu I can honestly say that was the most cinical thing I have read on this page. How can you make the conection between an iTunes visualiser and the fall of artistry? If you ask me, the equaliser built in to iTunes is a great feature that can be used to optimise the sound quality of my MP3s.

    As for this visualiser, on OS X 10.2.8 the text in the preferences window is badly wraped. The tabs are a mess and after clicking on the About tab I could not select the rest of the preferences. I also noticed that the signal displayed in the built-in spectrum analyzer differed from the one in the plug-in. For now I trust the built-in SA to be the most accurate of the two.

  5. So sound should never be turned to imagery for enjoyment… only for the “practical” use of properly-trained audiophiles (who are generally listening for enjoyment rather than for their profession anyway)?

    Sounds a bit irrational to me ” width=”19″ height=”19″ alt=”smile” style=”border:0;” />

    (And I like G-Force too. I have 10 visualizers installed–and I don’t keep every one I download.)

  6. Re your problems Sol: all works fine for me in Panther.

    And the difference vs. the built-in display may (I’m nor sure) simply be a matter of flip-flopping the channels or choosing a non-exponential scale, both of which can be done in Options.

  7. I’m the author – a couple of points. I designed this to be technically accurate – the frequency scales and dB scales are as close as I could get given that the signal supplied by iTunes only has 8-bit amplitude resolution. The built-in SA is considerably more band limited which is why the appearance differs. Dowload any one of the many test signal files to check it out if you prefer to see for yourself. In other words I believe it’s capable of being useful to calibrate your system. However, most people just want it to look interesting and so hopefully it does that as well. One final thing – if you are a Jaguar user please stick to version 2.0.4 – there is some as yet unresoved issue with 2.0.5 on Jaguar systems. My webpage that hosts the download has links to both versions.

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