以开发中国民乐独立插件和H7S吉他而闻名的国内品牌 三体声音科技 突然在效果器插件上发力，推出了他们的第3款效果器插件：柯尔西霍夫均衡器（简称 K-EQ）。
柯尔西霍夫均衡器（Kirchhoff-EQ）具有高精度曲线、实时频谱、键盘频率对照，顺手的数字EQ控制界面，并带有Neve风格等总计30种硬件均衡的电路建模，非常强大！
总的说来，Kirchhoff-EQ (K-EQ) 从功能和理念设计上似乎参考了当今市面上所有 EQ 插件的全部优点。
ULTIMATE EQ PLUGIN WITH SUPERB DYNAMIC PROCESSING AND VINTAGE MODELS
Kirchhoff-EQ is an ultimate 32-band parametric EQ plugin built for all critical professional applications.
It has refined sound quality, analogue-matched curves, 11 filter types with continuously variable shape and 30 vintage EQ types modelled from realworld devices.
The builtin dynamic processing functions are highly flexible and have ultra-low distorsion. All these push Kirchhoff-EQ to a next-generation standard.
Equalizers will never be the same again.
32段带有完备动态功能的超凡参数均衡器
Kirchhoff-EQ 是一款带有动态模式的32段参数均衡效果器。
拥有11种通用EQ类型和30种经典硬件EQ建模，以及功能全面非凡的动态模式。
内置动态处理功能，灵活性高，失真极低。所有这些都将 Kirchhoff-EQ 推向下一代标准。
EQ的世界，从此不同。
Robust Nyquist-matched Transform
Through originally developed "Robust Nyquist-matched Transform",
Kirchhoff-EQ has made digital-domain frequency response more approximate to its analogue counterparts without high frequency cramping as in regular IIR(infinite impulse response) equalizers.
This technique is applied on all filter types in Kirchhoff-EQ.
无限接近模拟原型
通过独创的“稳健奈奎斯特匹配变换Robust Nyquist-matched Transform”，
Kirchhoff-EQ的数字域频响无限接近模拟原型频响，不会出现常见的“频率高频扭曲”问题。
这种技术被应用于Kirchoff-EQ的所有滤波器类型上。
滤波器原型（蓝色）和一般的数字滤波器（红色）
滤波器原型（蓝色）和Kirchoff-EQ的数字滤波器（红色）
High-Precision Processing
64-bits is mandatory and it's not negotiable.
The internal processing of Kirchhoff-EQ is always in 64-bits (or 117-bits), regardless host DAW's current working precision.
高精度处理
内部64Bit处理精度
好音质需要64Bit精度，绝不妥协。
Psychoacoustic Adaptive Filter Topologies
All linear filter structures should have same sound on paper.
However in real-world application, round-off errors make every filter structure sound differently: some better in low frequency, some better in high frequency.
A technology called "Psychoacoustic Adaptive Filter Topologies" has been deployed in Kirchhoff-EQ.
Filter structures change themselves to a "best fitting" state along with corresponding band frequency changes, making optimized sound quality in both low and high frequency.
心理声学自适应拓扑滤波器
在计算机中，EQ算法的不同拓扑结构会导致在不同的频率产生数字噪音，高频低频顾此失彼。
为了解决上述问题，Kirchhoff-EQ设计了“心理声学自适应滤波器拓扑结构Psychoacoustic Adaptive Filter Topologies”，
使其针对不同滤波器类型的特点，在运算中自适应的调整自身结构，让高频、中频、低频同时达到极低数字噪音。您全都要，我们全都给。
一款非常知名的EQ产品的1000Hz提升6dB的量化噪音
Kirchhoff-EQ 1000Hz提升6dB的量化噪音
Switchable Ultra-High 117-bits Processing
Since there's already 64-bits, why not go further? Kirchhoff-EQ uses a technique called "Double-Double" to make precision of internal processing reach 117 bits! This is the first equalizer in the world to reach such precision.
You can switch between 64-bits and 117-bits at any time. It satisfies the most demanding ears.
可开关的超高117Bit内部处理精度
对技术，人类永远欲求不满，欲求不满的人类决定再进一步。Kirchhoff-EQ通过一种叫做“Double-Double”的算法实现了117Bit的超高浮点精度。
您可以根据需要随时在64Bit和117Bit之间进行切换。极限的精度，服务挑剔的耳朵，只此一家。
Filter Types
11 Unique Filter Types
low pass, high pass, band pass: continuously variable from 0 dB/oct to 96 dB/oct;
bell, notch: continuously variable from 12 dB/oct to 96 dB/oct;
low shelf, high shelf, tilt shelf: continuously variable from 6 dB/oct to 96 dB/oct;
flat tilt and flat top;
sword: has sharper slope than bell, specifically designed to "dig" out resonances.
丰富的类型
11种通用类型滤波器
低通Lowpass，高通Highpass，带通Bandpass（均可从0阶平滑过渡到16阶）。
钟形Bell，带阻Notch，均可从2阶平滑过渡到16阶。
低频提升LowShelf，高频提升HighShelf，高低比例TiltShelf，均可从1阶平滑过渡到16阶。
特殊的全局平衡FlatTilt类型可整体控制高低频比例。
平头钟形FlatTop类型可调节“平头”钟形，避免钟形的顶部带有共鸣感。
小宝剑Sword类型，拥有比钟形更加陡峭的斜率，专门用于挖掉不喜欢的共鸣。
Continuously variable slopes Filters
The slope of most filter types can be continuously changed from 0 dB/oct, 6 dB/oct or 12 dB/oct up to 96 dB/oct. Would you like to try a 8.125 dB/oct highpass?
连续可变斜率滤波器
大多数滤波器类型的斜率可以从 0 dB/oct、6 dB/oct 或 12 dB/oct 到 96 dB/oct 连续变化。 您想尝试 8.125 dB/oct 的高通滤波吗？
30 Filter Types Modeled from Historic Vintage EQs!
Get vintage and modern at same time! We modeled 8 vintage EQ hardware units into Kirchhoff-EQ, in total of 30 EQ types.
Benefit from Robust Nyquist-Matched Transform, every EQ type precisely matches the original hardware and won't cramp near Nyquist frequency.
For a further step, unlike the original hardware that only allows to choose between several frequency positions, we modified the DSP model to make adjustable frequency points for all these types!
Every type in these models can be used together with regular EQ types or other modeled types, and can be applied with dynamic functions (except lowpass and highpass types).
This brings you more freedom and convenient operations.
* No non-linear behaviors were modeled. All vintage filter types only contain ideal linear parts of their physical model.
30种源自经典硬件的EQ类型
Kirchhoff-EQ建模了8款共30种不同类型的经典EQ电路，每一种的频响都精确匹配原始硬件，几乎不会出现高频扭曲。
对建模的微调使得它们的频点可以自由移动，而不再局限于只在几个档位之间切换。
此外，每一种模拟类型都可以和其他类型混合使用，并且除低通和高通外都可以作为动态EQ！
从此，经典和未来同时在您手中了。
Zero-Latency/Analogue/Linear/Mixed Phase Modes
The phase mode of Kirchhoff-EQ is switchable between zero-latency mode, analogue mode, linear phase mode and mixed phase mode.
To meet all your Phase relationship needs.
* No matter which phase mode currently in, if dynamic functions is turned on for a filter band, it will work on minimum-phase mode (won't affect other bands).
最小相位，模拟原型相位，线性相位模式以及混合相位模式
Kirchhoff-EQ的相位模式可在零延迟模式，模拟原型模式，线性相位模式和混合相位模式中任意切换。
Kirchhoff-EQ可胜任您对相位的一切要求。
* 无论当前处于何种相位模式，若某一段开启了动态功能，则它将退回到最小相位模式工作，其他段依然保持当前相位模式。
Mixed Phase Mode
The zero-latency and linear phase mode has very different sound.
Kirchhoff-EQ provides a mixed mode that uses zero-latency when band frequency point is low, and uses linear phase when it is high.
Each band could smoothly changed between minimum and linear phase mode according to their frequency.
* There is no noticeable crossover between filter types while in mixed phase mode, transition is seamless.
混合相位模式
最小相位和线性相位模式各自有不同的声音，因此Kirchhoff-EQ提供了低频最小相位和高频线性相位的“混合相位模式”。
让每一段滤波器都可自动根据自身频点的不同在最小相位模式和线性相位模式之间无缝平滑切换。
别人在取舍，而您全都有。
Flexible Dynamic EQ Functions
Dynamic functions in Kirchhoff-EQ are not just a bonus, They provide the richest functions you have ever seen.
Enabling you to achieve unlimited possibilities of dynamic EQ functions.
All filter types (except low/high pass, band pass and notch), even these vintage-modelled ones, can be applied with dynamic functions.
完备的动态EQ调节功能
Kirchhoff-EQ 中的动态功能不仅仅是一种额外配置，它们提供了您所见过的最丰富的功能。
使您实现动态均衡功能的无限可能。
所有滤波器类型（低/高通、带通和陷波除外），即使是这些老式的滤波器类型，也可以应用动态功能。
Harmonic Shifted Envelope
All dynamic EQ have odd- and non-integral harmonics, that’s the laws of physics.
By using advanced DSP techniques, Kirchhoff-EQ now "shift" most energy of odd-harmonics into even-harmonics, making an ultra-low noise floor and enhanced sound.
Now you can use dynamic functions with freedom without worrying about smashing your sounds.
极低的谐波失真
所有动态EQ都会产生不悦耳的奇次甚至非整数倍谐波失真，
Kirchhoff-EQ的动态EQ通过“谐波转移包络Harmonic Shifted Envelope”技术，可以“转移”这些不和谐谐波的频率，让一部分奇次谐波的能量转移到悦耳的偶次谐波上。
您可以比以往任何时候更大胆的使用动态功能调教音频素材，它再也不会被你玩坏了。
一款非常知名的动态EQ作用于1000Hz，您会看到它充满了奇次谐波
Kirchhoff-EQ的动态功能，您可以看到它在有效降低整体谐波失真的同时产生了新的偶次谐波
Two-Way Threshold
You can now control how dynamics react to the portion of signal above/below threshold concurrently.
In Kirchhoff-EQ, the "Above" stage works as a compressor or upward-expander, and the "Below" stage works as an expander or upward-compressor.
For example, you can raise the signal below the threshold AND compress the signal above the threshold to "stablize" a band.
双向阈值
Kirchhoff-EQ可同时控制高于阈值和低于阈值的声音该如何变化，
例如，您可以在压缩过大的低频的同时提升过小的低频，以得到低频的稳定感，
又或者降低过小的低频而反倒提升过大的低频，营造更强更短促的冲击感。
Detect/Relative Envelope Detection
Let us imagine a simple case: we are playing an audio clip in which sounds around 1khz are 9 dB.
You may think "The 1khz range is over powering, We should reduce the 1khz But we should also consider the overall level.
If the whole audio is 30 dB, you would not feel that 1khz is too much, instead you may feel it's not enough.
The better criteria to determine whether a band's volume is high or low is its relative portion in overall volume envelope, instead of only its absolute dB value.
相对包络检测
不同于以往任何同类产品，Kirchhoff-EQ使用了“双包络检测”，
这种方式不仅考虑了当前被处理频段的包络，还会参考“整体”频段的包络，并以当前频段音量在整体音量中的占比作为实际包络。
所以，Kirchhoff-EQ的包络检测会比一般的动态EQ更加准确，并且不会受到绝对音量变化的影响。
Thereby we introduce "Detect/Relative Envelope Detection" in Kirchhoff-EQ.
The dynamics are affected by both current frequency band and relative portion to a "Relative" band.
The contribution of Relative Envelope Detection to dynamics is also adjustable:
when set to 0%, it degrades as a normal dynamic EQ; and when set to 100%, the amount of dynamics is fully calculated from the relative portion.
"整体"频段的混合比例可调：
当比例为0%时，动态功能将退化成标准的绝对模式动态EQ，
当比例为100%时，则使用完全相对模式的动态EQ。
The “detect” band is set according to the frequency and Q of the band by default,
“Relative” is the whole audio envelope by default. But they can be set freely.
The detecting band and relative band have a freely adjustable frequency point and Q value.
Or enable “S.C.” mode to make “Detect” or “Relative” to a sidechain signal.
除此之外，您还可以开启"自由"模式，
用其他频段的包络检测处理当前频段，比如高频多了反倒去压低频。
围魏而救赵，就是这样个性。
Onsets Detection Mix
By turning on "Onsets" mix, the envelope detector reacts more specifically to transients inside of the envelope.
So you can fine-tune the tone of transients. For better adjustability, you can "mix" envelope detector and onsets detector.
For example, you can compress the high frequencies just a little bit whilst compressing the suddent increase of high frequencies more aggressively.
音头瞬态混合比例
Kirchhoff-EQ可以在动态模式和音头瞬态模式间平滑过渡，
当混合比例为0%时，Kirchhoff-EQ会像一般的动态EQ一样工作，
当混合比例为100%时，Kirchhoff-EQ将只检测音频的音头瞬态。
通过调节混合比例，您可以得到更多的自由度。
只想提升军鼓的音头中频? 没问题! 只想提升军鼓音身的中频? 也没问题。
Spectrum Grab
Kirchhoff-EQ allows you to locate a specific frequency peak rapidly by directly grabbing on spectrum.
频谱拖拽
您可以通过双击右键或者点击图标方便地开启频谱拖拽功能，准确快速定位需要处理的频段。
无论什么频率，现在都逃不出您的鼠标了。
Switchable 2x Oversampling
Kirchhoff-EQ has builtin 2x oversampling that can be freely turned on/off.
可开关的2倍升采样
Kirchhoff-EQ内置了可开关的线性相位2倍升采样，这可以进一步提升音质。
Per-Band Directional EQ
Each band can be set as mid/side or left/right processing, so you can pan a band Left or right, or adjust Mid/Side, or just left, right, mid and side separately.
每段可独立调节方向性
您可以对每一段独立调节左右声像，或切换成Mid/Side模式。亦可只单独切换为左、右、中间、两侧模式!
Extreme CPU Optimization
Through hand-written assembly code commands, Kirchhoff-EQ achieves ultra low CPU workload. Never fear to use hundreds of instances!
极低的CPU占用
通过手写SSE汇编指令，Kirchhoff-EQ达到了极低的CPU负载。且加它个几十个上百个，听听效果如何！
Low Clicking Noise
We made our best to reduce clicking noises while performing parameter changes, type switching, bypass on/off and enter/leave solo listening mode.
不被操作噪音干扰
在执行参数修改、类型切换、旁通开/关和进入/离开独奏模式时，已经尽力减小因为这些操作而造成的爆音。
GPU Accelerated GUI
We are dedicated to smoothness in oprerating, speed to open/close UI and operation latency. To achieve better rendering efficiency, the GUI of Kirchhoff-EQ is rendered using OpenGL.
GPU 加速图形用户界面
我们致力于操作的流畅性、打开/关闭 UI 的速度和操作延迟。 为了获得更好的渲染效率，Kirchhoff-EQ 的 GUI 使用 OpenGL 进行渲染。
Visual-Comfort Spectrometer
The spectrum panel of Kirchhoff-EQ is carefully optimized for visuals and is freely configurable. You can adjust its decibel range, refresh speed, resolution, frequency scaling and brightness. You can even directly specify its center frequency.
视觉舒适的频谱仪
Kirchhoff-EQ 的频谱仪经过高度视觉优化，并且可自由配置。您可以自由调节其范围，刷新速度，分辨率，高低频显示比例和亮度，您甚至可以调节界面中点是多少赫兹。
User-Customizable Settings
How to trigger a war on forum? Ask them if a Q value shall increse/decrease when mouse wheels up. To help speed-up your workflow, Kirchhoff-EQ provides a rich set of options allowing you to cast it to your own handy tool.
丰富的用户可调设置
便有千般好处，用不习惯也是枉然。Kirchhoff-EQ提供了丰富的可设置选项，您可以把它打造成您用起来最顺手的样子！
Chinese interface
Kirchhoff-EQ has customized Chinese interface for China users.
中文界面
Kirchhoff-EQ为国内用户专门定制了全中文界面。
Other Features:
⦁ solo mode
⦁ phase invert
⦁ automatic gain compensation
⦁ gain scale
⦁ adjustable spectrum center
⦁ resizable interface
⦁ full-screen mode
⦁ MacOS Retina and Windows high-DPI support
⦁ piano roll display
⦁ pre-EQ/post-EQ/both spectrum
⦁ multi-band selection
⦁ multiple display ranges: 3dB, 6dB, 12dB, 18dB, 30dB
⦁ output level meter
⦁ presets and user-defined defaults
⦁ undo/redo and A/B switching
⦁ VST2, VST3, Audio Units, AAX Native (64-bit)
其他特点：
监听模式
相位反转
自动增益补偿
可调整大小的界面
全屏模式
MacOS和Windows高DPI支持
全局增益比例调节
钢琴卷帘窗显示
可选显示输入频谱、输出频谱或同时显示
频段多选功能
可调节的增益显示范围：3dB、6dB、12dB、18dB、30dB
精密输出电平表
丰富的预置
撤消/重做和A/B切换
支持VST2、VST3、AU和AAX Native（64位PC和Mac）
通过转译支持苹果M1 CPU
Lantency
⦁ Minimum-Phase: 0.
⦁ Analog Phase: 63 sample points, about 1.4ms (44100Hz sample rate).
⦁ Mix Phase: 63-2047 sample points, depends on band frequency point.
⦁ Linear Phase: 2047, 4095, 8191, 16383, 32767 sample points.
