Sound Performance Lab 9737 manual Control Elements, Active, Drive

Control Elements

7 5 6 9 1 8

2 3 4 10

Active

Relay hard-bypass for AES/EBU input and output

1	The ACTIVE function switches the MACHINE HEAD on or off. The
	illuminated LED indicates that the processing has been
	activated.

The software bypass also compensates for the 5ms time delay between processed and unprocessed signal.

The AES/EBU input and output are equipped with relay- hard-bypass. In the event of a power failure the MACHINE HEAD is automatically switched to hard-bypass (power failure safety) without interrupting the data flow.

INPUT GAIN adjusts the input level of the digital data stream .

Input Gain 2 Adjustable values range from -12.0dB to +12.0dB in 0.1dB steps. The value is shown in the LC-display (see 6) and the INPUT PPM meters displays the actual input level after theINPUT GAIN control.

Drive

Setting the recording level of the ‘virtual tape machine’

In practise you will start with the INPUT GAIN set to 0dB. For most applications this is the appropriate setting. If your source material is of ver y low level or not normalized yet, you can use the INPUT GAIN control to drive the source material near full scale. If you are processing full scale material it may be neces- sary to reduce the input signal by one or two dBs to create new headroom for the processing. Reduce the INPUT GAIN with the proviso of the INPUT-CLIPLEDS (see 8).

3	The DRIVE control is the most important parameter of the
	MACHINE HEAD. You set the recording level above the normal
	working level of the analogue tape machine. The adjustable
	values range from -7 to +14 in 0.2dB steps and will be shown
	in the LC-display (see 7). The corresponding recording level is
	displayed by the DRIVE LEVEL-LED bars (see 8).

8 Machine Head