# Acoustic impedance

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This video describes how to calculate acoustic impedance based on density and speed of propagation and describes some of the importance of acoustic impedance.

Flute Acoustics - Part 7 - So now let's look at the acoustic impedance spectrum of the modern flute. We'll choose the fingering used for C#5 and C#6...

Acoustic Impedance

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What is acoustic impedance?

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Heartless Machine by Christopher Locke; Walk The Plank is an acoustic impedance coupler. The horn is supported by a single long piece of steel, welded to a single long (and very heavy) base. There's a delightful springiness that echoes the tone arm on a vintage turntable. This horn will make the sound from your iPhone louder and richer, using no electricity, wires, plugs, or batteries. The shape of the horn is enough to add 25 decibels or more.

Acoustic impedances

Features: This special purchase Lepai ST-based mini audio amplifier is ideal for both home and car audio applications. Uses the ST IC for low distortion,acoustically accurate reproduction of music Input power:DC10-14.4V; Output power:20w×2 RMS Speaker impedance: 4-8 ; Frequency response:20Hz-20Khz Total harmonic distortion: < 0.4% ; SNR: > 80dB The features is so awesome. This product made from high durability material that makes this product could be use for long...