21. Techniques he uses to analyze the acoustic properties of violins include audio spectrum analysis, density testing, and materials modification. 22. Music now on the other hand has come to define the physical design of a space to suit different acoustic properties . 23. The bodies of the Zenbooks are made of aluminium, chosen for its light weight, strength, vibration dampening, appearance and acoustic properties . 24. A gradual change in acoustic properties and / or meaning could have resulted in arbitrariness and an expanded repertoire of words. 25. Adler was an acclaimed expert in acoustics, yet he was unable to explain fully the excellent acoustic properties of his buildings. 26. A perfectly diffusive sound space is one that has certain key acoustic properties which are the same anywhere in the space. 27. Andrea Tacchi is well known for a guitar he began building in 1989, the Coclea, which possesses unusually resonant acoustic properties . 28. The linear acoustic properties of such objects are close to that of the medium which make them invisible with traditional echography techniques. 29. They are made from a specialty nylon and purport to offer the same acoustic properties as gut strings without the tuning problems. 30. The musicians were honored for " bringing listeners to the highest pitch of emotion " by skillfully using the hall's acoustic properties .
