Spectra V610 Operation Manual Download Page 7

 

 
MODES OF OPERATION

 

 

Principal of Operation 
 

The Model V610 “COMPLIMITER” is the first compressor/limiter that allows for the professional the widest 
range of separate and distinct mode of operation. The attainment of this flexibility is based upon being able to 
easily and precisely set the input and output level controls. This is a result of interaction among the following 
principals of operation:

 

 

1.

 

Accurate monitoring of peak vs. average input signal levels using visual “threshold” LED indication and 
Vu meter, respectively. 

 

2.

 

Constant threshold attack level for any compression slope setting. 

 
The following modes of operation result from interaction of the above principles and are recommended for 
actual use to demonstrate the simplicity of obtaining both maximum performance and maximum versatility with 
the Model V610. 
 

1.

 

Normal linear amplification. 

2.

 

Peak limiting only (maximum level below fixed amplitude without affecting dynamic range). 

3.

 

Compression and limiting simultaneously. 

4.

 

Compression only. 

5.

 

Limiting and compression with additional fixed amplitude protection, (maximum percent modulation). 

 
Through variations of these separate and distinct modes of operation, innumerable audio signal combinations 
are obtainable. For each mode of operation there follows an explanation of the interaction of the principals of 
operation, control settings and typical applications. 

 
Normal Linear Application 

 
This mode of operation always occurs when both the average and peak level of the signal waveform are below 
the threshold attack level of -40 dBu. Since neither the compression nor limiting functions of the Model V610 
will be activated, the slope control and release time settings will have no effect on the output, and 20 dB of 
normal linear amplification will be provided. In addition, whenever the slope control is set to the minimum 
compression/limiting ratio of 1.1 to 1 (“100” slope control setting = fully clockwise), normal linear 
amplification occurs for all input signal levels above the -40 dBu threshold attack level. This latter condition of 
operation above the threshold attack level provides the maximum signal-to-noise ratio for the device. 
 
 

 

Microphone and Line Level Settings 

Summary of Contents for V610

Page 1: ...1 Model V610 Operation Manual Contact Information 860 West Riverdale Road Suite D6 Riverdale UT 84405 801 605 8849 9 00 AM 5 00 PM MST WWW SPECTRA1964 COM...

Page 2: ...scernable as beyond the state of the art Because of extremely low noise characteristics of the design the system has a very low input level threshold of 40 dBu thus providing the greatest input sensit...

Page 3: ...o 30 dB compression with release time such that attack and release does not occur on successive peaks of the lowest frequency utilized Typically less than 5 100ths of 1 Compression Limiting Ratio Cont...

Page 4: ...control Independent Peak Limiting Compression A unique and important design feature of the V610 is to eliminate the peak transient information independent of the compression function Audio program pea...

Page 5: ...stands the relationship between input level gain and output level make up gain Improper level adjustment can result in loss of dynamic range and possibly increased system distortion The V610 Complimit...

Page 6: ...to 100 1 When the slope control is set for minimum compression the knob is set at 10 thus providing peak limiting and linear amplification of 20dBu When the slope is set for maximum compression the k...

Page 7: ...mpression only 5 Limiting and compression with additional fixed amplitude protection maximum percent modulation Through variations of these separate and distinct modes of operation innumerable audio s...

Page 8: ...s the compression curve and a continuously variable limiting curve is obtainable For positive amplitude protection a flat compression slope provides a flat limiting protection line Control Settings In...

Page 9: ...imiting Broadcast Application This mode is the same as the previous Compression and Limiting Simultaneously mode except that additional amplitude protection at a fixed level is provided by driving the...

Page 10: ...ess or de emphasis controls frequencies irrespective of whether or not transients or sibilant peaks are present The professional audio engineer is no longer in control of the final program output fro...

Page 11: ...ting fully counterclockwise the compression limiting curve is flat Hence the maximum amplitude output is held to a constant 20 dBu for any input level up to 30 dB above threshold This extremely flat s...

Page 12: ...r multiple source program material main program channel material mastering or very slow music from a single source Minimum settings of release time 0 on the panel fully counterclockwise will quickly r...

Page 13: ...evel changes Judicious listening and selection of release times for various program selections is recommended using this information as a guide Threshold Attack Indicator LED The Vu meter needle mecha...

Page 14: ...nents EQUIPMENT WARRANTY The following warranty is effective for all Spectra Sonics LLC Manufacturer products Spectra Sonics warrants that this product is free of defects in both materials and workman...

Page 15: ...such notice the Manufacturer will give instructions respecting the shipment of product or such other matters as it elects to honor this warranty as above provided This warranty does not cover damage...

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