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An analog VU meter with peak LED. A volume unit (VU) meter or standard volume indicator (SVI) is a device displaying a representation of the signal level in audio equipment.. The original design was proposed in the 1940 IRE paper, A New Standard Volume Indicator and Reference Level, written by experts from CBS, NBC, and Bell Telephone Laboratories. [1]
This can be useful in many applications, but the human ear works much more like an average meter than a peak meter. The analog VU meters are actually closer to the human ear's perception of sound level because the response time was intentionally slow - around 300 milliseconds, [2] and thus, many audio engineers and sound professionals prefer to ...
LM3916 - VU-meter steps, scaled by a resistor divider consisting of 1087, 970, 864, 769, 1298, 1031, 819, 923, 1531, 708 ohm resistors. [3] All the devices in this group operate with a range of voltages from 3-25 V, can drive LED and VFD displays. [4] They can provide a regulated output current between 2-30 mA to directly drive displays.
LED VU meter for your hi-fi: Here's an all-electronic digital VU meter that you can add to your hi-fi system. Bradley Albing: 52/5: May 1981 Computer-to-Selectric interface: Part 2—An inexpensive way to use an IBM Selectric typewriter as a hard copy printer for your computer. E. G. Brooner: 52/5: May 1981 $60 modem: Give your computer a ...
Broadcast engineers in North America usually line up their audio gear to nominal reference level of 0 dB on a VU meter aligned to +4 dBu or -20 dBFS, in Europe equating to roughly +4 dBm or -18 dBFS. Peak signal levels must not exceed the nominal level by more than +10 dB. [10]
Meters OV-1-B-Connect Price: $249.95. Nothing symbolizes loudness quite like the sight of a VU meter going into the red. And though we don’t recommend listening to music at top volume, it’s ...