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Sound level meter circuit diagrams
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November 26, 2010
This nifty sound level meter is a perfect one chip replacement for the standard analog meters. It is completely solid state and will never wear out. The whole circuit is based on the LM3915 audio... [more]
October 12, 2010
This circuit is intended to indicate the power output level of any audio amplifier. It is simple, portable, and displays three power levels that can be set to any desired value. [more]
October 3, 2010
A simple circuit, peak indicator of tops of musical signal. Each time where the level of signal exceeds the level + 4dB, turns on led D1. It is useful in each channel of console of... [more]
circuit from:http://www.extremecircuits.net/2009/07/peak-indicator.html
August 8, 2010
A peak level indicator when a signal exceeds a certain maximum value. It can be quite useful, for instance, with tape recorders, mixing consoles etc. One of the most important requirements of a peak level... [more]
August 8, 2010
It is a simple circuit of optical index of level of sound signals, adapted in various needs of user. [more]
August 8, 2010
A circuit of measurement of level based on a typical application of National. [more]
August 8, 2010
A very simple circuit of indication of level, with 10 Led. Is used the circuit of half-wave rectification of precision round the IC2, with gain one. With switch S1, we can select the indication of... [more]
August 8, 2010
The circuit is placed parallel with the exit of power amplifier and us gives the level of signal ,from output. Changing resistance R1, in the input circuit, we adapt the indication of power, in the... [more]
August 8, 2010
This analyst is, a sensitive instrument, in the frequency changes and width of a acoustic signal. Thus the brightness of LED that turns on each moment of is proportional signal width, while the colour of... [more]
August 8, 2010
This circuit of measurement of level uses the UAA180 of SIEMENS and a circuit of rectification of precision, round the IC2B. The calibration has become in steps 3db from the one Led in the other,... [more]
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