1. . []
Pertaining to sound waves in the frequency range of 1 to 25 kilohertz.
See: acoustic, acoustic log, compaction correction, elastic, frequency, hertz, sonic log, Stoneley wave
2. . []
Some authors use the term to describe P-waves in fluids, or as a synonym for seismic or elastic.
See: acoustic, elastic, P-wave, sonic log
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