Control Link

8051 5.1 Compressor

User Guide

While the SC link buttons control the audio inputs to each sidechain, the CV link buttons choose where the D.C. control voltage generated by each sidechain is routed. The CV link buttons also determine which gain makeup control affects each channel, in the same way that the SC link buttons assign the threshold controls.

For the output of a sidechain to be correct, it must be fed back to the channels it is derived from. Pressing an SC link button will therefore illuminate the corresponding CV link button and lock it on.

	100		FILTER TO CHANNEL
80		120

		IN/OUT		1	2	3	4	5	6
0		0				BYPASS
				1	2	3	4	5	6
			MST	M	2	3	4	5	6
15 1/2	15	15 5/6	15			SIDECHAIN LINK
0		0		1	2	3	4	5	6
				A	A	A	A	A	A
				1	2	3	4	5	6
15	15	15	15	B	B	B	B	B	B
3		4

	SC TRIMS dB				SIDECHAIN FILTER
					SIDECHAIN FILTER
		IN/OUT		1	2	3	4	5	6
	100				CONTROL LINK
80	120
Hz		EXT	1	2	3		4	5	6
		A		A	A	A	A	A	A
		CTRL		A	A	A	A	A	A
		EXT	1	2	3		4	5	6
	Neve	B		B	B	B	B	B	B
	Neve	CTRL		B	B	B	B	B	B

Most compressors apply gain reduction based entirely on the signal level at their inputs. A level detector examines the input and drives an output VCA that is assumed to have a complimentary response (a 'feed-forward' system). The 8051 uses a feedback topology, monitoring the output of each gain cell and continually adjusting the control voltage returned to give the required gain reduction.

This means that the control voltage linking has to follow sidechain linking to maintain a closed loop. Once this feedback is in place the sidechain output can be linked to other channels using the remaining unlit CV link buttons. These channels then follow the same dynamic envelope as the SC Linked channels, but without their audio content affecting the compression.

A channel may also have control voltage linked from both sidechains. In this case the sidechain providing the most gain reduction at any moment controls the channel, and the greater of the two gain makeup settings will be applied.

The CV Link buttons are disabled unless either a channel or the key has been routed to the associated sidechain, or when in external mode.

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8051 specifications

The AMS 8051 is a sophisticated microcontroller that has become a favorite among developers and engineers due to its robust performance and versatile applications. Known for its compatibility with the widely used 8051 architecture, the AMS 8051 integrates various features and technologies that enhance its effectiveness in embedded systems.

One of the main features of the AMS 8051 is its 8-bit microcontroller design, which allows it to process data efficiently while maintaining a balance of performance and power consumption. The device typically includes 4KB to 64KB of on-chip ROM and up to 4KB of RAM, providing ample memory for program storage and variable data. Furthermore, the AMS 8051 features a flexible clock speed, usually ranging from 12 MHz to 40 MHz, which allows it to adapt to different operational requirements.

Another notable characteristic of the AMS 8051 is its rich set of input/output ports. It usually includes at least four parallel I/O ports and supports serial communication via UART protocols. This feature makes it highly suitable for interfacing with a wide range of peripherals, such as sensors and actuators, which is essential for developing integrated systems in industries like automotive, telecommunications, and consumer electronics.

The AMS 8051 microcontroller also shines in terms of power management. It typically incorporates various power-saving modes, allowing it to operate efficiently in battery-powered applications. These modes help to extend battery life by minimizing power consumption during idle periods.

In terms of technology, the AMS 8051 is often equipped with advanced interrupt handling capabilities. This feature enables the microcontroller to respond swiftly to external events, making it particularly useful in real-time applications where timely responses are crucial. Additionally, the device supports a range of programming languages, including assembly and C, providing flexibility for developers in their coding preferences.

With its extensive feature set, innovative technologies, and characteristics tailored for modern applications, the AMS 8051 microcontroller stands out in the crowded field of embedded systems. Its combination of performance, reliability, and versatility makes it a preferred choice for many engineering projects, ensuring that it remains relevant in an ever-evolving technological landscape. Whether for hobbyists or industrial applications, the AMS 8051 continues to prove itself as a capable and efficient solution for embedded control.