New answers tagged acoustics
1
Interesting topic!
If you first imagine that sound waves emanating from a point source (which you are going to have to approximate as a speaker) will emit spherically. Where the sphere intersects first with the paper, you will notice a dot on the paper appearing in your image. That is the point at which the wavefront hits the paper and is the earliest ...
2
speakers don't just emit sound towards the front, they emit sound in 360 degrees despite the efforts of designers. Higher frequency drivers are more directional than lower frequency drivers. The lower the frequency, the more 'omnidirectional' the device is.
By attempting to measure frequency response vertically above a speaker, you are going to experience ...
2
Based on a suggestion by Jojek in a comment, I tested the DC output using a sinusoidal signal of stepped amplitude:
The results are given for 90dB SPL, 80dB SPL and 70dB SPL as read on the meter display.
The plot also display the RMS value of the DC signal provided by the SLM. Barring measure error, the result matches the specifications of 33 mV/dB ...
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