Team R2R | 05 Oct 2024 | 72.5MB
APU响度限制器是一种实时限制器，旨在同时支持多种响度类型。限制器可以配置为使用LUFS、真峰值、RMS和/或峰值响度类型。这允许您同时针对多个需求，例如特定的LUFS目标和特定的True Peak目标。内部，限制器的弹道调整，以适应不同的响度类型限制器设置。
响度的味道
这个限制器的一个主要特点是它支持各种响度类型。限幅器的检测电路可以配置为使用LUFS和/或传统的测量单位(RMS, Peak)。您还可以选择分割或链接通道，这对于多通道音频格式(如杜比全景声®)特别有用。
限制器的检测电路可以配置为使用以下任何响度类型
短暂的
瞬时是一个短持续时间的LUFS测量(400ms)，这对于处理音频的时刻动态非常有用。这种模式是响应性的，但也是透明的。在压缩机检测电路中采用k加权和通道加权，提高了感知精度。
短期
短期是指更长时间的LUFS测量(3秒)，这对于处理音频的大规模动态非常有用。考虑到持续时间较长，这种模式的响应性不如瞬时模式，但它可以用于调整音频动态的更大画面。k加权和信道加权与瞬时加权一样应用。
集成
集成是一个无限持续时间的LUFS测量。k加权和通道加权应用与瞬间，以及相对和绝对门控。这种响度类型对于持续地将音频的综合响度调整到特定目标非常有用。
RMS
RMS响度类型默认使用150ms滚动时间间隔，可进行调整。RMS是一种传统的响度测量方法，它是感知响度的一阶近似。这种模式不应用k加权或通道加权限制器的检测电路，给它一个更传统的字符。
真正的高峰
真正的峰值响度类型与传统的峰值测量类似，但由于它们考虑了样本间的峰值，因此更加准确。这些测量使用的时间间隔等于配置的块大小(默认为1ms)。这种模式可以防止裁剪样本间的峰值，这对于母带是有用的。
峰
峰值响度类型是一个标准的峰值电路，其工作时间间隔等于配置的块大小(默认为1ms)。这是另一种传统的限制器式测量。从技术上讲，这种模式甚至比True Peak响应更快，但由于它没有考虑样本间峰值，因此准确性较低。
系统需求
macOS 10.14 (x86, x64, ARM)
The APU Loudness Limiter is a real-time limiter designed to support multiple loudness types simultaneously. The limiter can be configured to use LUFS, True Peak, RMS, and/or Peak loudness types. This allows you to target multiple requirements simultaneously, such as a specific LUFS target and a specific True Peak target. Internally, the ballistics of the limiter are adjusted to accommodate the different loudness type limiter settings.
Loudness flavors
One of the key features of this limiter is its support for a variety of loudness types. The limiter’s detection circuitry can be configured to use either LUFS and/or traditional measurement units (RMS, Peak). You can also choose to split or link channels, which is particularly useful for multi-channel audio formats such as Dolby Atmos®.
The limiter’s detection circuitry can be configured to use any of the following loudness types
Momentary
Momentary is a short duration LUFS measurement (400ms), which is useful for processing the audio’s moment-by-moment dynamics. This mode is responsive but also transparent. K-weighting and channel weighting are applied to the compressor’s detection circuitry, improving perceptual accuracy.
Short-Term
Short-Term is a longer duration LUFS measurement (3 seconds), which is useful for processing the audio’s large scale dynamics. Given the longer duration, this mode is less responsive than momentary, but it can be useful for adjusting the bigger picture of the audio’s dynamics. K-weighting and channel weighting are applied as with momentary.
Integrated
Integrated is an infinite duration LUFS measurement. K-weighting and channel weighting are applied as with momentary, as well as both relative and absolute gating. This loudness type can be useful for continuously wrangling the audio’s integrated loudness toward a specific target.
RMS
RMS loudness types use a rolling time interval of 150ms by default, which can be adjusted. RMS is a traditional loudness measurement, which is a good first-order approximation of perceived loudness. This mode doesn’t apply K-weighting or channel weighting to the limiter’s detection circuitry, giving it a more traditional character.
True Peak
True Peak loudness types are similar to traditional peak measurements, but they are more accurate as they take into consideration inter-sample peaks. These measurements use a time interval equal to the configured block size (1ms by default). This mode prevents clipping inter-sample peaks, which can be useful for mastering.
Peak
Peak loudness types are a standard peak circuit, operating on a time interval equal to the configured block size (1ms by default). This is another traditional limiter style measurement. Technically, this mode is even slightly more responsive than True Peak, but it is less accurate as it doesn’t take into consideration inter-sample peaks.
System Requirements
macOS 10.14 (x86, x64, ARM)
Homepage
