Disclosed are compounds, pharmaceutical compositions containing those compounds, and uses of the compounds and compositions as modulators of casein kinase 1, casein kinase 2, Pim-1, Pim-2, Pim-3, the TGF\u03b2 pathway, the Wnt pathway, the JAKSTAT pathway, andor the mTOR pathway. In this regard, a frequency band may be scanned by receiving signals on each of a plurality of sub-bands for an amount of time, the energy received in each band may be compared to a threshold, and whether each sub-band comprises a Bluetooth transmission may be determined based on a FFT. Therewith correlated and uncorrelated parts of the input audio signals are processed effectively.