We propose a new method to overcome quantum back-action in measurement process using oscillators. An optical oscillator is used as meter measure the parameters of another open oscillator. The synthesized such that restoring force counters any perturbations induced by phenomena. As result, it shown continuous suppressed low frequency regime i.e., for frequencies much smaller than resonance plays...

This extended abstract details a submission to the Music Information Retrieval Evaluation eXchange (MIREX) 2010 for the “Audio Beat Tracking” task. The system named ircambeat performs time-variable tempo and meter estimation, beat and downbeat marking. Detailed description of the various parts can be found in [1], [2] and [3]. We briefly summarized them below. 1. IRCAMBEAT IMPLEMENTATION The la...

This extended abstract details a submission to the Music Information Retrieval Evaluation eXchange (MIREX) 2011 for the “Audio Beat Tracking” task. The system named ircambeat performs time-variable tempo and meter estimation, beat and downbeat marking. Detailed description of the various parts can be found in [1] and [2]. We briefly summarized them below. 1. IRCAMBEAT IMPLEMENTATION The last ve...

BACKGROUND The measurement of cough frequency is problematic and most often based on subjective assessment. The aim of the study was to assess the accuracy of the automatic identification of cough episodes by LR102, a cough frequency meter based on electromyography and audio sensors. METHODS Ten adult patients complaining of cough were recruited in primary care and hospital settings. Particip...

We consider enhancing the sensitivity of future gravitational-wave detectors by adding optical filters inside the signal-recycling cavity—an intracavity filtering scheme, which coherently feeds the sideband signal back to the interferometer with a proper frequency-dependent phase. We study three cases of such a scheme with different motivations: (i) the case of backaction noise evasion, trying ...