acoustic mode

acoustic mode

[ə′küs·tik ′mōd]
(solid-state physics)
The type of crystal lattice vibrations which for long wavelengths act like an acoustic wave in a continuous medium, but which for shorter wavelengths approach the Debye frequency, showing a dispersive decrease in phase velocity.
References in periodicals archive ?
This time he is in solo acoustic mode and brings a recently released album, Acoustic Classics Vol II, which contains 14 tracks from his extensive, and critically acclaimed, back catalogue.
Equation 7 gives good results up to the frequency of the 10th acoustic mode in the duct and predicts a 3 dB increase per doubling of frequency, while Equation 8 predicts 6 dB per doubling.
This analysis exploited knowledge of the climatology of the region and the spatially averaged, acoustic mode resolving thermometry that provided depth resolution.
For example, an air space or room is considered as a single SEA acoustic subsystem and the energy per acoustic mode is determined.
Catch Emma in her more familiar acoustic mode at Boston Bar (Beer Engine) tonight from 8.
We caution, though, that a duct open to a pressure vessel may cause difficulties if an acoustic mode of the vessel overlaps with a mode of either a spherical or cylindrical cavity.
But he will be in acoustic mode when he arrives in South Shields, bringing just a piano and a guitarist with him.
DeJohnette does play a piano introduction to his own piece but the rest of the gig finds the pair in purely acoustic mode.
Both the Levellers - here in acoustic mode - and the Smoke Fairies come from the Brighton area, the former with a successful two-decade history whilst the latter have just released their acclaimed second album.
Selecter were one of the top Ska bands in the late '70s and early '80s and Pauline Black is still leading the band, which will be in acoustic mode at Stockton's Arc tonight.
Extras include a trio of music videos, six tracks filmed live in Germany, backstage interviews, photo gallery and, best of all, a rare chance to see Lemmy in acoustic mode with guitarist Phil playing Ain't No Nice Guy.
Being essentially a street band, the Bollywood Brass Band seized the opportunity to perambulate around the MAC Arena, delivering their first set in completely acoustic mode.

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