[实时等响度滤波器插件] APU Software APU Loudness Contour v4.3.6 Incl Keygen-BTCR [WiN, MacOSX]（102MB)

Team BTCR | 24 September 2025 | 102 MB

安装方法：使用KeyGen注册机激活版本。

APU Loudness Contour 是一款实时等响度滤波器，可精确控制各种感知响度轮廓，包括 ISO 226（2003 和 2023）、Fletcher-Munson、K 加权、A/C 加权、ECMA-418 和 ITU-R 468。

每个轮廓在 1 kHz 时均归一化为 0 dB，并包含专用的轮廓权重参数，可让您在正向和负向缩放频率响应。0% 的权重会产生平坦的响应，而负权重会反转轮廓。ISO 226 和 Fletcher-Munson 曲线支持从 20 dB SPL 到 120 dB SPL 的可变参考电平，并且在 phon 曲线之间具有平滑插值。

该插件支持线性相位和最小相位滤波器类型。每个轮廓和参考电平都提供内置的补偿增益补偿，并使用粉红噪声 LUFS 测量进行校准。启用后，补偿增益会将整个轮廓响应偏移相应的增益量。额外的输出增益可用于手动微调。

内置全面的实时频谱分析仪，具有可配置的 FFT 大小、窗口类型、存储桶宽度和时间平均功能。频率可视化可以在线性、对数或音符刻度之间切换，并具有自动缩放和自定义 dB 范围选项。

APU Loudness Contour is a real-time equal-loudness filter that offers precise control over a wide range of perceptual loudness contours, including ISO 226 (2003 & 2023), Fletcher-Munson, K-weighting, A/C-weighting, ECMA-418, and ITU-R 468.

Each contour is normalized to 0 dB at 1 kHz and includes a dedicated contour weight parameter, allowing you to scale the frequency response in both positive and negative directions. A weight of 0% results in a flat response, while negative weights invert the contour. ISO 226 and Fletcher-Munson curves support variable reference levels from 20 dB SPL to 120 dB SPL, with smooth interpolation between phon curves.

The plugin supports both linear phase and minimum phase filter types. Built-in makeup gain compensation is provided per contour and reference level, calibrated using pink noise LUFS measurements. When enabled, makeup gain offsets the entire contour response by the corresponding gain amount. Additional output gain is available for manual fine-tuning.

A comprehensive real-time spectrum analyzer is included, featuring configurable FFT sizes, window types, bucket widths, and time averaging. Frequency visualization can be switched between linear, logarithmic, or musical note scales, with auto-zoom and custom dB range options.

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