Frequency response
By applying an input signal to an electroacoustic system, and measuring the output spectrum, we can obtain the frequency response. This response contains information on the amplitude and phase relative to the input signal. However, a large number of manufacturers only give the amplitude curve without the phase. Different kinds of signals can be used to measure the frequency response like, for example, a sinewave with a constant amplitude but varying frequency, an impulse, white noise, pink noise...etc
