APU Loudness Compressor (Windows)

🎧 APU Loudness Compressor – Precision Loudness Control for the Modern Audio Workflow

The APU Loudness Compressor is a next-generation dynamics processor designed for modern audio standards. Unlike traditional compressors that rely on RMS or Peak metering, this plugin offers transparent, intelligent dynamics control using LUFS-based compression, aligning with contemporary mastering and post-production requirements.

Whether you’re working on broadcast, film, streaming content, or immersive formats like Dolby Atmos®, the APU Loudness Compressor offers a flexible, intuitive solution to dynamic range control.

🧠 Smart Compression with LUFS-Based Detection

At its core, APU Loudness Compressor uses LUFS (Loudness Units relative to Full Scale) to shape its compression curve, offering more perceptually accurate and transparent results compared to RMS or Peak-based compressors. It supports multiple loudness measurement types:

• Instant LUFS (400ms) – Fast, perceptual response ideal for transparent control

• Short-Term LUFS (3s) – Smooth handling of broader dynamic trends

• True Peak – Detects inter-sample peaks for precise limiting

• RMS – Classic, warm response

• Peak – Ultra-fast detection for traditional applications

Channel linking and splitting options allow for independent or unified control, ideal for complex formats including surround sound and immersive audio.

🎛️ Adaptive Compression Modes

Forget fixed thresholds and ratios. APU Loudness Compressor introduces a new approach:

• Source Range / Target Range Mode – Define the loudness range you want to work with, and let the compressor adapt dynamically.

• Classic Mode – Switch to standard threshold/ratio settings if preferred.

• Expander / Limiter Modes – Select different dynamics types via the dropdown in the Compressor Dynamics section.

Enable “Learn Mode” to have the compressor automatically detect and adapt to your source material – an excellent starting point for dialing in your perfect sound.

🔊 Flexible Loudness Adjustment Options

The compressor’s detection scheme is fully configurable to suit any use case, from subtle mastering adjustments to aggressive mix dynamics:

• K-weighting & channel weighting improve perceptual accuracy

• Adjustable time constants and block sizes for fine-tuning behavior

• Compatible with LUFS, RMS, Peak, and True Peak measurements

This makes APU Loudness Compressor uniquely suited for mastering, dialogue leveling, post-production, and more.

✅ Built for the Modern Engineer

Whether you’re mixing in stereo or multi-channel formats, the APU Loudness Compressor offers unmatched control and clarity. From transparent mastering to bold dynamic shaping, its powerful toolset fits right into today’s loudness-aware production environments.

Try it today and experience dynamic processing that truly listens.
If you have questions or feedback, reach out via the “Contact Developer” button directly in the plugin interface.