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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)
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)
Despite the recent advances in the wireless networking technology, wireless multichannel digital audio delivery is not yet efficiently realized, because of the additional implementation issues raised for managing possible distortions introduced. In this work, a novel, open-architecture, software platform for evaluating wireless digital audio distribution is(More)
The proposed model derives time-frequency maps to estimate perceived alterations due to reverberation in stereo audio signals reproduced in rooms. These alterations relate to monaural masking due to reverberant decay, derived via a computational auditory masking model and to inter-channel cues for the formation of the spatial position of the aural objects,(More)