从史蒂夫·哈克特（Steve Hacket）和吉米·亨德里克斯（Jimi Hendrix）到范·哈伦（Van Halen）和乔尼·格林伍德（Jonny Greenwood），所有条纹的吉他手都使用调制效果来添加与吉他声音不同的东西。在接下来的几个月中，我们将把目光转变为调制领域的各种居民，今天，我们开始使用Phaser（或相位变速杆）踏板的起伏乐趣。
For those who aren’t familiar with the concept of a phase shifter, the basic recipe involves splitting an audio signal into two, filtering one of the signals through a set of all-pass filters, and then recombining them in a way that alternately cancels the phase at different points of the frequency spectrum.
大多数移动器踏板都使用低频振荡器调节受影响的信号，并改变原始，未影响的信号的相位，而正是此过程的运动使变相器具有特征性的扭曲声音。
Like many other effects, phasers came to prominence in the late 60s and can be heard on all sorts of psychedelic and funk records from the 70s and beyond. It was Eddie Van Halen, though, who probably did the most for the phase shifter as far as establishing it as a core guitar effect on the boards of all manner of modern player – hear its iconic sound at the start of不说话的爱。
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MXR M101 Phase 90
This is the standard. The Phase 90 dates back to the 1970s and set the bar for phasers. As you’ll see below, there are countless variations on the design available today, but the M101 is the current manifestation of the classic design that was used by Mr Van Halen. There’s not a lot to experiment with here, with a single control for speed that adjusts the rate of the movement of the phase. On lower settings, that means just a subtle swirl. On a higher rate setting, the effect gives something of a choppier, more pronounced motion to the sound of the effect.
MXR M290 Phase 95 Mini
在过去的几年中，一波迷你室浪潮的一部分，第95阶段采用了经典的90阶段模板，将其缩小一点，并在MXR的逐步阶段的不同时期内添加了两个不同的拨动。首先，您可以在第90阶段的标准四阶段移相器或第45阶段的略微微妙的两阶段分阶段之间进行选择。“脚本”切换是指复古阶段90生产的两个不同的时代。参与该按钮将消除混合物中的一些反馈，从而产生一些稍微的音调。
Electro-Harmonix Nano小石材EH4800
The current iteration of Electro-Harmonix’s classic phaser option, the Nano Small Stone is essentially the EHX counterpart to the Phase 90. Like that pedal, the Small Stone has one knob for rate, but it also includes a ‘color’ switch that alters the character of the frequency curve a bit. It’s another great, simple option primed for a variety of styles.
MXR EVH90阶段90
Honouring Van Halen’s history with the Phase 90, MXR gave Eddie a signature version of the effect. Apart from the requisite red, white and black striped look of his Frankenstein guitar, this version is similar to the Phase 95 Mini in its inclusion of a ‘script’ toggle, which allows players to switch between the two circuits of the two vintage periods of Phase 90 production.
老板ph-3
尽管第90阶段及其同行提供了对速率的单一控制，但Boss ph-3可以通过控制深度和共振的控制以及七个不同的阶段设置，从而改变了相位阶段的数字和阵列。作为复制经典模拟效果的数字踏板，一些玩家否认了PH-3的光泽色调，而支持那种老式的类似物。也就是说，很难与始终可用的纯粹的多功能性争论，并且总是负担得起的脚步盒。
Electro-Harmonix Bad Stone
与大多数模拟踏板的标准四阶段设计相比，EHX的另一种重生老式设计是六个不同相位阶段的坏石头包装。还有一个漂亮的“手动换档”和“自动/手动”切换，使您可以锁定特定阶段设置的音调，从而脱离来回移动事物的振荡器。
EarthQuaker Devices Grand Orbiter Phase Machine
宏伟的轨道器是地震诀窍的一个光辉典范，该诀窍是将经典的踏板概念带入完全前所未有的领域。这个四阶段的移相器使您可以调整潮湿和干信号之间的混合物，甚至完全切割干信号以产生颤音效果。所有这些都加起来是市场上更通用的模拟变速箱之一。
Boss PH-2 Super Phaser
Introduced in 1984 and replaced by the PH-3 in 2000, the PH-2 remains a popular seller on the used pedal market. The reason players opt for this model over the more elaborate PH-3 comes down to its analogue circuit, and thus its more organic tone.
MXR CSP026 ’74 Vintage Script Phase 90
This particular Phase 90 model is a reissue of the classic ‘script era’ circuit of 1974. These pedals are known for their more mellow tones and are a good choice for players who just want the subtle warmth of a phaser and not too much else.
Keeley Bubbletron Franger/Phaser
Bubbletron是当今名单上的唯一组合，是专门设计的，旨在纪念弗兰克·扎帕（Frank Zappa）在70年代和80年代的唱片中获得的调制音调。这个广泛使用的踏板实际上包括两个不同的相路：经典的基于LFO的移相器以及“动态调查器”，对挑选攻击的变化特别好。
