gooftrupe

gooftrupe t1_iyb3z8m wrote

Reply to comment by petalmasher in Headphone wizardry by SupOrSalad

A one dimensional line would never change direction or osciallate because it has not other dimensions besides length. An x-y plot has 2 dimensions: x and y. Similarly, a sound wave has two dimensions amplitude (sound pressure) and time.

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gooftrupe t1_iyb3pvk wrote

Reply to comment by Taraxian in Headphone wizardry by SupOrSalad

I think you might be conflating sound pressure (amplitude) and wavelength? Frequency is kind of like the speed of a wave yes, but it's not a product of the sound pressure at all. They're independent. If you haven't heard of sengpiel audio I highly recommend. He explained some of these things pretty well. I use the site for looking up acoustic calculations a lot.

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http://www.sengpielaudio.com/calculator-wavegraphs.htm

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gooftrupe t1_iyb16u1 wrote

Reply to comment by Taraxian in Headphone wizardry by SupOrSalad

How is frequency an increase in sound pressure? I can alter frequency while maintaining constant sound pressure, as well as vice versa. Frequency is independent of sound pressure. Again two dimensional

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gooftrupe t1_iy4n6en wrote

Reply to comment by PeaceFar9770 in LG Display’s ‘invisible’ speaker brings sound to any surface in your car by MicroSofty88

The frequency response of typical transducer/actuator speakers, as I’m familiar calling them, rely heavily on the material they are mounted to. The EQ can be tuned to account for this, but a good one should have high fidelity down past 200 Hz. That may not be low enough for some people but I only stop there as I haven’t actually seen the data below 200 Hz.

I can’t yet find the specs for the LG TASS, but once they’re available I’d compare to the linked transducer below, which has wonderful fidelity.

https://soliddrive.mseaudio.com/sd-1-ti.html

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