BSS Audio DPR-402 Owner's Manual User Manual
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dBV
Any modification of a signal which produces new frequency components not
presents in the original. Harmonic distortion refers to added frequencies that
are overtones to the fundamental frequency. Intermodulation distortion refers
to added frequencies that are sum and difference values derived from the
beating together of two frequencies.
Distortion
Equalisation
Drop-in
Frequency
The equipment's relative gain compared to frequency. Generally expressed as
+/- a certain number of dBs from 20Hz to 20kHz.
Frequency
Response
Headroom
Impedance
Level
Line Level
Limiter
Octave
Ratio
Gain Reduction
The amount, in dBs, by which a compressor/limiters output has been reduced
in level with respect to its uncompressed level.
The amount, in dBs, above the normal operating level that can be used before
serious distortion commences.
The repetition of a waveform. The unit of frequency is Hz, and 1 cycle per
second is equal to 1Hz. The audio band is generally restricted to frequencies
of 20Hz to 20,000Hz (20kHz).
Modification of the frequency response of an audio system, regardless of
level, for corrective or enhancement purposes.
A term used to describe the way in which new equipment, or a hitherto
unused function of equipment already connected, can be switched into a live
sound system without causing unwanted effects i.e: without causing clicks or
a noticable change in sound level.
The same scale as for dBu as before, except that 0dBV = 1.0 Volts.
The amplitude of a signal, measured in Volts or Decibels.
The AC equivalent of resistance and measured in ohms. It indicates the
amount of drive required for an input, or the drive capability of an output, at a
given signal level.
Generally indicates a signal whose level is between -10 and +10dBu or -14 to
+6 dBV. Mic level refers to levels around -40dBu.
Similar to a compressor but harder acting, and generally used as a protection
device for audio systems.
A logarithmic unit for expressing frequency ratios. Positive values indicate an
increase and negative ones a decrease. One octave 'up' the scale is
equivalent to double the frequency. One octave 'down' is equivalent to half
the frequency.
The relationship between change in input level and resulting change in output
as a consequence of compressing or limiting.