New answers tagged sound
2
It isn't simply pitch from the vocal cords that determines the 'maleness' of a voice, but also how the spectral peaks and resonances are influenced by the shape of the skull, sinuses and chest cavity. http://en.wikipedia.org/wiki/Formant has a discussion of these influences and where the different peaks live. Knowing these can help you 'tune' a vocal ...
5
A voice is a very complex sound pattern. While you can manipulate a male voice to sound feminine or vice versa, getting it to sound like a particular person is probably going to be pretty difficult since the patterns of frequencies differ in complex ways.
Think about it this way, think about voice synthesis and how we can't even make a computer generate a ...
0
Sound Pressure Level (SPL) is a dB scale defined relative to a reference that is approximately the intensity of a 1000 Hz sinusoid that is just barely audible.
0dB SPL = 20 micro Pascal
Since sound is created by a time-varying pressure, sound levels computed in dB-SPL by using the average fluctuation-intensity (averaged over at least one period of the ...
2
The instantaneous sound pressure of a pure tone equals the ambient pressure (p0) with a superimposed pressure that varies in time as a sine function, i.e.: p(t) = p0 + A sin ωt, where A is the peak amplitude of the pressure variation and ω the angular frequency ( ω = 2πf ).
The amplitude A is related to sound pressure level L in dB by ...
1
Sound pressure level is directly related to the amplitude of the waveform.
A pure tone is a sine-wave and sine-waves are defined by ω (omega) and t (time)
amplitude = sin(ωt) --- "sin" is the mathematical operator you did in trigonometry at school and t is time.
ω = 2 * π * f --- π is 3.141592654 (approx) and f is 500
So for 500Hz, ω = 3141.5927 ...
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