Howtosignalprocessing
Is there an upper and lower bound to a spectrogram representation of an audio signal? The range of the amplitude values of the audio signal is from 0 to 1.
- What is amplitude on a spectrogram?
- How do you find the amplitude of a spectrum?
- What is amplitude in frequency domain?
What is amplitude on a spectrogram?
The amplitude (or energy or “loudness”) of a particular frequency at a particular time is represented by the third dimension, color, with dark blues corresponding to low amplitudes and brighter colors up through red corresponding to progressively stronger (or louder) amplitudes.
How do you find the amplitude of a spectrum?
The shape of the amplitude spectrum is determined by the function sin( f ) f π τ π τ . the single rectangular pulse of width τ contains all frequencies between 0 and ∞. the relative amplitudes (ignoring the overall amplitude factor) of these frequencies is given by the function sin( f ) f π τ π τ .
What is amplitude in frequency domain?
In the frequency domain, amplitude modulation corresponds to translating the baseband spectrum to a band surrounding the carrier frequency. Because the baseband spectrum is symmetrical with respect to the y-axis, this frequency translation results in a factor-of-2 increase in bandwidth.
