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VU And PPM Audio Metering
https://sound-au.com/project55.htm
PPM: A standard PPM has a 5ms integration time, so that only peaks wide enough to be audible are displayed. This translates into a response that is 1dB down from a steady state reading for a 10ms tone burst, 2dB down for a 5ms burst, and 4dB down for a 3 ms burst. These requirements are satisfied by an attack time constant of 1.7ms.
DIY Circuit Design: Pulse Position Modulation
https://www.engineersgarage.com/diy-circuit-design-pulse-position-modulation/
The Pulse Position Modulation (PPM) is a modulation technique designed to achieve the goals like simple transmitter and receiver circuitry, noise performance, constant bandwidth and the power efficiency and constant transmitter power. In Pulse Position Modulation the amplitude of the pulse is kept constant as in the case of the FM and PWM to avoid noise interference. Unlike …
VU And PPM Audio Metering - www.RADANPRO.com
http://www.radanpro.com/Radan2400/MiscAudio/VU%20And%20PPM%20Audio%20Metering.htm
A standard PPM has a 5ms integration time, so that only peaks wide enough to be audible are displayed. This translates into a response that is 1dB down from a steady state reading for a 10ms tone burst, 2dB down for a 5ms burst, and 4dB down for a …
Audio Applications of Linear Integrated Circuits
https://www.ti.com/lit/an/snva530/snva530.pdf
with a small (100 ppm/˚C) drift. The −120 ppm/˚C drift of the ... Audio Applications of Linear Integrated Circuits AN-299 ... circuit’s audio input is inverted byA5 and then summed atA6 with the main gain control output, which comes from A4. The
Simple pulse position modulation circuit
https://www.electroschematics.com/simple-pulse-position-modulation-circuit/
The pulse width is given by, W = – (R1+R2) Cin [ (Vcc-UTP)/ (Vcc-0.5UTP) ]. The period is given by, T = W+0.693R2C The space between the pulses which is constant is given by 0.693 R2C. This circuit has many application a quick example is, it is used in communication application for transferring voice or data. 555 datasheet Share this: Previous
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