VU And PPM Audio Metering


Posted on May 5, 2012

VU (Volume Unit) meters used to be the mainstay of audio metering systems, but they have been replaced by LED metering in a great many mixers and other applications. Even in software, the most common level meter is made to look like an LED meter. The Peak Programme Meter (PPM) was originally developed by the BBC to overcome the shortcomings of the VU meter, which is notoriously bad at showing the peak signal level. The VU meter is average reading, and the ballistics are important if an accurate reading is to be obtained.


VU And PPM Audio Metering
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Over-Temperature Switch
Design of VLSI Systems
ADC to 8051
accelerometer amplifier circuit
headphone jacks
LED based transistor tester
Battery monitoring instrumentation amplifier circuit diagram ISO120 and INA105 multiplexer 600V battery system
Can produce circuits within the range of 1-99% duty cycle of the digital set-precision PWM wave



Top