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Q. What’s the difference between PPM and VU meters?
https://www.soundonsound.com/sound-advice/q-whats-difference-between-ppm-and-vu-meters#:~:text=There%20are%204dB%20between%20each%20mark%2C%20and%20PPM,DIN%20versions%20accommodate%20a%20much%20wider%20dynamic%20range.
What is PPM audio?
https://askinglot.com/what-is-ppm-audio
A peak programme meter (PPM) is an instrument used in professional audio that indicates the level of an audio signal. Click to see full answer. Keeping this in consideration, what is vu in audio? A volume unit (VU) meter or standard volume indicator (SVI) is a device displaying a representation of the signal level in audio equipment.
How to Design and What to Consider when Designing a PPM ...
https://www.rumblehouse.com/how-to-design-and-what-to-consider-when-designing-a-ppm-audio-meter/
Audio will be measured from the maximum reference, down. 20log (65536) = 96.3db. Most PPM’s will not offer the full range of -96.3dbFS, but rather -90dbFS (+/-15bits) as the smallest sample to be output. Or, 20 log (1/32768) = 90.31 dbFS; 6db less than -96dbFS.
VU and PPM Audio Meters – An Elementary Explanation – MCC ...
https://www.memphiscommunications.net/2015/08/13/vu-and-ppm-audio-meters-an-elementary-explanation/
For a steady state sine wave tone, the difference between the average level (VU) and the peak level (PPM) is about 3 dB. But for a complex audio signal (speech or music), the difference between the average level (VU) and the peak level (PPM) can be 10 to 12 dB! This difference between the reading of a VU meter and a PPM is known as the crest factor.
Q. What’s the difference between PPM and VU meters?
https://www.soundonsound.com/sound-advice/q-whats-difference-between-ppm-and-vu-meters
The specifications of all types of PPM are detailed in IEC 60268-10 (1991), and the scale used by the BBC comprises the numbers 1-7 in white on a black background. There are 4dB between each mark, and PPM 4 is the reference level (0dBu). EBU, DIN and Nordic variants of the PPM exist with different scales.
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