Let’s start our expla nations of loudspeaker measurement graphs with the most basic graph of a speaker’s behavior: the frequency response. Sometimes this is referred to as the amplitude response as ...

Question Using the apparatus shown above and with the microphones placed 3.4 metres apart, the computer recorded a time of 0.01 seconds. Calculate the speed of sound that these results give.

Bottom Graph: frequency matches occur at the same time, so the song and sample are a match. Wang, Avery Li-Chun. An Industrial-Strength Audio Search Algorithm. Shazam Entertainment, 2003. Fig. 2B.

Wave speed is measured in metres per second (m s 1). All the electromagnetic waves travel at 300,000,000 metres per second (3 × 10 8 m s 1). Sound travels at about 340 metres per second.

Room EQ Wizard’s waterfall graphs show how long it takes for sound to decay per frequency, but this is NOT what is being displayed in Audioholic’s waterfall graphs in our loudspeaker reviews at all.