Abstract: A method of and system for generating audio having pitch attributes of an incoming audio stream. The method comprises receiving a digital audio input. The audio spectrum is analyzed and integrated over segments of digital audio data upon receiving analysis triggers which can be synced with the audio tempo. The integrated spectrum is processed to find peak frequencies in the spectrum and their associated gain stored in a peaks array. The peak frequencies are used to program the oscillators controllable attributes and characteristics. The synthesis is performed upon receiving an analysis clock. A number of digital oscillators are configured with the associated frequency parameters and gain parameters from a peaks array. The oscillators are configured according to the audio pitch analysis and generate an oscillator output at the frequency and gain specified in the peaks array. These oscillator outputs are summed together generating synthesized audio.

Abstract: A method of and system for generating audio having pitch attributes of an incoming audio stream. The method comprises of receiving a digital audio input. The audio data is analyzed upon receiving an analysis trigger indication which can be synced with the audio tempo. The analysis includes a Fast Fourier Transform of a segment of digital audio data. The integrated spectrum is process to find a number of peak frequencies in the spectrum and their gain. A number of the peak frequencies are used to program a number of oscillators and the parameters determined during analysis and controllable attributes and characteristics of the oscillators. The synthesis is performed upon receiving an analysis clock. First, a number of digital oscillators are configured with the associated frequency parameters and gain parameters from the peaks array; The number of oscillators configured according to the audio pitch analysis and are generated an oscillator output at the frequency and gain specified in the peak array.

Abstract: In one invention embodiment two microphones are attached to the ear cup and are configured as an end-firing array. The end-firing array suppresses unwanted sounds using an adaptive spectral method and spectral subtraction. According to a second embodiment, Automatic Calibration of an end-firing Microphone Array is provided.

Abstract: In one invention embodiment two microphones are attached to the ear cup and are configured as an end-firing array. The end-firing array suppresses unwanted sounds using an adaptive spectral method and spectral subtraction. According to a second embodiment, Automatic Calibration of an end-firing Microphone Array is provided.

Abstract: There is provided a synthesis and description of diprotonated diacid derivatives of pyridoxal isonicotinoyl hydrazone (PIH) of formula (I), wherein q is 1 or 2, DPA is 2 mols of a monoprotic acid HX or 1 mol of a diprotic acid H.sub.2 Y wherein X is a monovalent anion and Y is a divalent anion and both HX and H.sub.2 Y are pharmaceutically acceptable acids. The unique properties of the PIH.DPA molecule make it particularly suitable and pharmaceutically acceptable for formulation as an oral dosage form by virtue of its ready solubility in water. There are further provided methods of utilizing such chemically unique and isolable crystalline compounds, such as PIH.2HCI, as a pharmaceutical chelator. There are further provided pharmaceutical formulations specifically for the reduction of iron overload, and related chelatable metals, in subjects susceptible to such overload.