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The peak-to-average power ratio (PAPR) is the peak amplitude squared (giving the peak power) divided by the RMS value squared (giving the average power). [1] It is the square of the crest factor. When expressed in decibels, crest factor and PAPR are equivalent, due to the way decibels are calculated for power ratios vs amplitude ratios.
Peak-to-peak (sometimes abbreviated as p-p) amplitude (V PP) refers to the total voltage swing of a signal, which is double the peak amplitude of the signal. For instance, a signal with a peak amplitude of ±0.5 V has a p-p amplitude of 1.0 V.
At this frequency, the voice coil is vibrating in the speaker's magnetic field with maximum peak-to-peak amplitude and velocity. The back EMF generated by this movement is also at its maximum. The electrical impedance of the speaker varies with the back EMF and thus with the applied frequency.
Peak power refers to the maximum of the instantaneous power waveform, which, for a sine wave, is always twice the average power. [16] [1] [17] [18] For other waveforms, the relationship between peak power and average power is the peak-to-average power ratio (PAPR).
Peak-to-peak amplitude (abbreviated p–p or PtP or PtoP) is the change between peak (highest amplitude value) and trough (lowest amplitude value, which can be negative). With appropriate circuitry, peak-to-peak amplitudes of electric oscillations can be measured by meters or by viewing the waveform on an oscilloscope .
dB(overload) – the amplitude of a signal (usually audio) compared with the maximum which a device can handle before clipping occurs. dB pp relative to the peak to peak sound pressure. dB pp relative to the maximum value of the peak electrical power. dB q dB(quarterwave) – the forward gain of an antenna compared to a quarter wavelength whip.
Sonority is loosely defined as the loudness of speech sounds relative to other sounds of the same pitch, length and stress, [1] therefore sonority is often related to rankings for phones to their amplitude. [2] For example, pronouncing the vowel [a] will produce a louder sound than the stop [t], so [a] would rank higher in the hierarchy.
Pulse duration using 50% peak amplitude. DECT phone pulduration measurement (100 Hz / 10 mS) on channel 8. In signal processing and telecommunications, pulse duration is the interval between the time, during the first transition, that the amplitude of the pulse reaches a specified fraction (level) of its final amplitude, and the time the pulse amplitude drops, on the last transition, to the ...