Y2Kmeter is a free, open-source desktop audio analyzer with a retro pixel look. Explore loudness, levels, phase, dynamics and spectrum, plus audio-reactive visuals, a desktop virtual pet, fuse-bead pixel art and an analog VU meter. Poke every module in Toybox mode. Runs standalone on Windows.

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About This Game

(^_^) Welcome back to the millennium. Rewind, power on, enter the pixel universe.

Y2Kmeter is a retro-futuristic, pixel-styled professional audio analysis software — and even if you're not an audio professional, it doubles as a gorgeous desktop decoration. It pairs a pink pixel aesthetic inspired by late-1990s and early-2000s desktop interfaces with a full suite of industry-standard audio metering and analysis tools. It runs standalone: launch it and it immediately begins analyzing the incoming audio signal.

Everything you play gets turned into visible pixels: loudness, frequency, phase, dynamics… plus a virtual pet that lives on your music.

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♡ Professional Metering Core

  • Loudness meter — ITU-R BS.1770-4 compliant, with LUFS-M (momentary) / LUFS-S (short-term) / LUFS-I (integrated) readings.

  • Stereo level meters — RMS L/R alongside True Peak L/R.

  • Phase correlator — correlation, width, balance, plus a Goniometer Lissajous display for stereo imaging.

  • Dynamic range — peak, RMS, crest factor, short-term DR, integrated DR.

  • Spectrum analyzer — logarithmic 20 Hz–20 kHz axis, dual FFT (2048 main + 8192 low band), razor-sharp low-frequency detail.

  • Spectrogram — pixel-tile waterfall, plus a Spectrogram 3D view.

  • Stereo oscilloscope — Waveform / X-Y / Lissajous modes.

  • Stereo Field radar — a semicircular imaging indicator showing source position and intensity.

  • Analog VU meter — retro dashboard readout.

  • Scrolling waveform — a continuously rolling waveform display, with pitch tinting and sibilance highlighting.

  • Tempo & key — real-time BPM readout and musical key estimation from the live signal.

  • Recorder — captures the pre-gain input as 32-bit float WAV, with one-hour continuous takes and a rolling 60-second export.

♡ Signature Modules

  • Desktop virtual pet — driven by your audio, with states for hatching, feeding, sleeping, sickness, and farewell. It responds to your music in real time.

  • Milkdrop visuals — 9,921 built-in presets on a libprojectM engine, rendering stunning real-time visuals from your audio. On top of that, a wealth of customization options across four real-time control panels: COLOR (RGB additive offset & brightness), EFFECTS (38 post-processing effects — kaleidoscope, VHS glitch, CRT scanlines, neon glow), WAVE (16 waveform shapes + 7 parameters + 4 toggles), and TWEAK (geometric distortion & kaleidoscope symmetry).

  • Fuse-bead pixel art — drop in any image to generate bead art and set it as your desktop background.

♡ Toybox — poke everything

  • Every module is a toy: poke the spectrum, slap the level meters, flick the stereo field. Each of the 19 modules answers with its own reaction and a live readout bubble drawn from real analysis data.

  • A workspace-wide particle canvas with mouse force fields, combo chains, emoji bursts and wall bounces, capped so it stays smooth.

  • Four intensity levels — OFF / CHILL / NORMAL / PARTY — cycled from the TOY button in the toolbar and saved with your layout.

♡ Themes · Layout

  • Theme system — multiple color presets, defaulting to the Black Pink pixel theme.

  • Palette Studio — an OKLCH-based generator that builds a full, readable scheme from a single seed color, with its own saved theme library.

  • Freeform workspace — drag-and-drop arrangement of all modules, with persistent layout presets (save / load).

  • Window modes — full chrome, hidden chrome and a slim Stick strip layout, plus pseudo-fullscreen that is restored on the next launch.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 (64-bit)
    • Processor: Intel Core i3 / AMD Ryzen 3(2.0 GHz 双核)
    • Memory: 4 GB RAM
    • Graphics: 支持 OpenGL 3.2 的显卡(Intel HD 4000 或更高)
    • Storage: 200 MB available space
    • Sound Card: 支持 WASAPI 的音频设备
    • VR Support: 不支持
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10/11 (64-bit)
    • Processor: Intel Core i5 / AMD Ryzen 5(2.5 GHz 四核)
    • Memory: 8 GB RAM
    • Graphics: 支持 OpenGL 4.1+ 的独立显卡
    • Storage: 200 MB available space
    • Sound Card: 支持 WASAPI 的低延迟音频设备
    • VR Support: 不支持