The NLMS adaptive sound echo-counteracted algorithm is introduced in the paper. The hardware and software of the sound echo-counteracted device are realized by DSP.

介绍了自适应NL MS声回声抵消算法，并运用DSP对声回声抵消器进行软硬件实现。

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By hanging panels of sound absorbing felt on the walls, Sabine reduced the echo enough to make the hall usable.

通过在墙上悬挂吸音板，Sabine 减少了足够的回声，使大厅可用。

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Usually, as they swim, they make clicking noises, and the resulting sound waves are reflected in an echo and travel back to them.

通常，当它们游泳时，会发出咔嚓的声音，所产生的声波会在回声中被反射回到它们身边。

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And so, you can actually, like, in an echo in sound, you can see the light moving outwards.

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In their place, he says, an acoustic canopy should provide a louder and more even sound, with a shorter echo.

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As a composer, Gress is interested in unifying the sound of an album by writing themes that echo or resonate off each other.

NPR: Summing Up Drew Gress' 'Irrational Numbers'