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  1. Few

    Laser speckle imaging to measure surface motions

    I came across this paper on an updated method for using changes in laser speckle patterns to monitor surface vibrations. For speaker measurements, the issue of the source moving around isn't an issue (their method can handle moving musicians, but speakers or drivers can be held stationary). As a...
  2. Few

    "Line" sources and perception

    Hi all, I'm sipping and listening to some fairly tall approximations to line source loudspeakers. Design details can be found at: https://www.diyaudio.com/community/threads/diy-planar-magnetic-open-baffle-woofer-array.301091/ (long thread) https://www.homebuilthifi.com/project/18876...
  3. Few

    Sound Devices mix-pre 6 II

    I’ve had my eye on a Sound Devices mix-pre 6 II but I haven’t been able to find a set of quantitative measurements to complement all the “sounds great” reviews. I’m looking for a field recorder that can double as audio interface, 48 volt phantom power, and preferably 4 mic inputs. Can anyone...
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