ACMT - Applied Computer Music Technologies Ltd

ACM-3SA Product Operating Guide
 
Access to plug-in parameters is provided by a fully resizable graphical user interface. Your host application may also provide access to parameter adjustments and additional configuration.
 

 
Graphical User Interface
 
The plug-in settings are adjusted by clicking and dragging on the rotary controls or buttons. Some controls may have detents – these manifest themselves as areas in the rotation where the reluctance to move is increased such that you have to drag them a bit harder. They are intended to behave similarly to real controls which may have a 'click stop' at 0dB for example.
 
You can also adjust the controls by placing the mouse pointer over them and using the scroll wheel. In this case the detent has no effect.
 
Control Modes
 
Clicking the preferences button opens the plug-in preferences panel to configure the control mode. The control mode determines the way in which the rotary controls respond to mouse movement. This may also be configured via the host application preferences where applicable.

• Circular. In this mode, clicking on a control will move it immediately to the mouse pointer’s angular position. To adjust the control, drag the mouse pointer in a circle or an arc.
• Relative Circular (Default). This is the default mode unless changed by host application settings. Similar to circular mode, however moving the mouse will adjust the control relative to its current setting.
• Linear. In this mode, the control responds to vertical mouse movement. Drag up to increase the value, turning the control clockwise, or down to decrease the value, turning the control anticlockwise.

In all modes, double clicking the centre of a control will return it to its default position.
 

Control Functions
 
1. EQ In
 
This is the EQ filter bypass switch. With the switch on, the filters will be in the signal path and affecting the output. With the switch off, the filters will be out of the signal path.
 
2. Low Cut Frequency
 
The low-cut switch selects the cut-off frequency at which the low-cut filter operates. The switch has ten frequency positions together with an ‘off’ position which bypasses the low-cut filter completely. In keeping with similar vintage hardware, the control settings are indicated in cycles per second (CPS) - equivalent to Hz.
 
3. High Cut Frequency
 
The high-cut switch selects the cut-off frequency at which the high-cut filter operates. The switch has ten frequency positions together with an ‘off’ position which bypasses the high-cut filter completely. In keeping with similar vintage hardware, the control settings are indicated in kilocycles per second (KCS) - equivalent to kHz.
 

ACM-3SA Technical Specification:
 
Product Specifications

• VST, VST3, AAX and CLAP plug-in.
• Windows & Linux compatible.
• Mono or stereo operation.
• Smooth switching between filter settings.
• -18dBFS reference level for 0dBu.
• Low Cut - 50Hz - 2000Hz 12dB / octave.
• High Cut - 1.5kHz - 15kHz 12dB / octave.
• Filter types:
  • 'Constant-k' low frequency cut filter.
  • 'Constant-k' high frequency cut filter.
• Filter frequency ranges:
  • Low Cut: 50Hz, 80Hz, 100Hz, 150Hz, 250Hz, 500Hz, 750Hz, 1000Hz, 1500Hz and 2000Hz.
  • High Cut: 1.5kHz, 2kHz, 3kHz, 4kHz, 5kHz, 6kHz, 8kHz, 10kHz, 12kHz and 15kHz.
• Polarity invert switch.
• Output level trim (+/-6dB).

Please note: In the interest of continual product improvement, specifications may be subject to change without notice.

ACM-3SA Download for Free
 
1. System Requirements - Windows

• 64bit Windows 7 or newer.
• A compatible host application.

2. System Requirements - Linux

• Linux x86-64/AMD64 64bit e.g. Ubuntu 20.04 LTS or newer.
• A Linux compatible host application.

3. Product Activation

• Every 60 seconds the plug-in will fade to silence momentarily. To remove this limitation you will need to use the free product activation code provided in the download.
• Open the plug-in in your host application and click the lock button at the top left of the plug-in GUI to open the license entry dialogue. Type (or paste) your product activation code into the text box. You will then need to restart your host application to complete the process.

4. Product Support

• All downloads include their own installer, manual, and installation instructions. Easy to install with just a few clicks.
• If you need help downloading or installing the software please contact product support for assistance.