Sound Performance Lab 9631 manual Control Elements, Active, Input Gain

Control Elements

8 9 10 11 1 13

2 3 7 5 6 4 12

Active

Relay hard-bypass for AES/EBU input and output

Input Gain

INPUT GAIN = 0 for processing pre-production material with enough headroom

Choose negative INPUT GAIN values for full scale recordings to create new headroom to add harmonics

Use positive INPUT GAIN values for low level material

1	The ACTIVE function switches the SPECTRALIZER on or off. The
	illuminated LED indicates that the processing is 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 SPECTRALIZER is automatically switched to hard-bypass (power failure safety) without interrupting the data flow.

INPUT GAIN controls the input level of the digital source. You 2 can boost the input gain by up to +6dB or attenuate it by up to

-20dB. The LC-display (see 8) shows the actual value.

Adjustment: If you are about to process pre-production mate- rial which has not yet been normalized nor limited, you should set the INPUT GAIN to 0dB.

If your source material has already been mastered and limited it is advisable to adjust negative values for the INPUT GAIN control in order to create new headroom for the proces- sing. Keep in mind that the SPECTRALIZER adds new harmonics to the source material. If the source is a full scale recording the added harmonics will immediately create an overload indi- cated by the illuminating CLIP LEDs.

If your source material has a very low level you can use the SPECTRALIZER´S INPUT GAIN control to boost the level without making changes to the sound. Additionally you drive the SPECTRALIZER into an operational level to work properly.

8 Spectralizer