LAUD/IMP/PRAXIS related Technical Papers and article reprints :

**---Time, Phase, Freqency, Delay (an audio signal theory primer/refresher)
**--- Using LAUD (or PRAXIS)  with ACCELEROMETERS
**---Waterfall Plots: How They are Generated, What They Mean
**---Reflecting on Echoes and the Cepstrum...a discussion of Cepstral (Echo) analysis
**---Maximum Length Sequence (MLS) based measurements
**---"Close-3rd Order" Intermodulation distortion measurement