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26 Cards in this Set
- Front
- Back
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VU meter |
Tracks average amplitude (analog); responds more slowly than peak meter |
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Volume |
A knob on your stereo |
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Twice as loud |
+10 phons (often loosely described at +10 dB) |
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RMS meter |
Tracks average amplitude (digital) |
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Reference levels |
Use dB relative to some fixed standard |
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Phon |
Unit of loudness derived from equal loudness contours |
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Peak meter |
Tracks maximum amplitude |
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Mic level |
Much lower than line level |
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Meter |
Measures amplitude of signal; used for setting input/output levels, setting record levels, calibrating a system or room, regulating output levels (esp. broadcast) |
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Loudness |
A subjective evaluation of a sound's strength |
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Line level (pro) |
+4 dBu |
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Line level (consumer) |
-10 dBV |
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Level |
Signal strength; standard reference of signal strength |
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Intensity |
Measured strength of sound |
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Gain staging |
Proper setup of multiple steps of amplification in order to minimize noise and distortion |
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Gain |
Amount of amplification; change in level |
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Full Scale |
Maximum digital level |
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Decibel |
Unit of amplitude/intensity/voltage/power; ratio of two amplitudes |
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dBV |
Decibels above or below 1.0 Vrms |
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dBu |
Decibels above or below 0.775 Vrms |
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dB SPL |
Decibels above the threshold of hearing |
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2:1 power |
+3 dB |
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dB FS |
Decibels below digital "full scale" |
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Amplitude |
Size or maximum value of sound or audio signal |
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2:1 voltage |
+6 dB |
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2:1 SPL |
+6 dB |
