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Single-channel spectral subtraction algorithms are commonly used to suppress late reverberation. A binaural extension of such methods, apart from suppressing reverberation without introducing processing artifacts, should also preserve the signal's binaural localization cues. Here, three state-of-the-art spectral subtraction dereverberation algorithms are(More)
A method for the estimation of the direct-to-reverberant-ratio (DRR) from dual-channel microphone recordings without having knowledge of the source signal is proposed. The method is based on previous findings for the statistics of the room transfer function spectral standard deviation and its relationship to the DRR. A novel relationship for the standard(More)
A methodology is introduced for smoothing the Complex Transfer Function of measured responses using well-established or arbitrary fractional octave profiles, based on a novel time-frequency, mapping framework. A corresponding impulse response is also analytically derived having reduced complexity but conforming to perceptual principles. The relationship(More)
Although uniformly sampled pulse width modulation (UPWM) represents a very efficient digital audio coding scheme for digital-to-analog conversion and full-digital amplification, it suffers from strong harmonic distortions, as opposed to benign non-harmonic artifacts present in analog PWM (naturally sampled PWM, NPWM). Complete elimination of these(More)
— The recent growth of home networking applications has raised the requirement for cable-free distribution of an increasing amount of media to portable playback devices, which lack the resources for local storage. In this work, the " BlueBox " wireless digital jukebox application is presented, which employs the Bluetooth wireless technology for distributing(More)
—The suppression of late reverberation by spectral subtraction tends to degrade disproportionally low-level signal regions and signal transients. This work proposes two novel relaxation criteria that can constrain such problems in a signal-dependent fashion. These criteria were found to improve the performance of state-of-the-art late reverberation(More)