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The Modified Bark Spectral Distortion (MBSD), used for an objective speech quality measure, was presented previously [1]. The MBSD measure takes into account the noise masking threshold in order to use only audible distortions in the calculation of the distortion measure. Preliminary simulation results have shown improvement of the MBSD over the(More)
The Modified Bark Spectral Distortion (MBSD), used for an objective speech quality measure, was presented previously [1][2]. The MBSD measure estimates speech distortion in the loudness domain taking into account the noise masking threshold in order to include only audible distortions in the calculation of the distortion measure. Preliminary simulation(More)
Need for deciding whether a given frame of a speech waveform should be classified as voiced speech or unvoiced speech arises in many speech analysis systems. Several approaches have been described in the literature for making this decision. In this paper, we have presented two novel approaches of using acoustical features and pattern recognition. The first(More)
A new system for translating the infant cries from its facial image and cry sounds is presented in this paper. The system is designed to analyze the facial image and sound of the crying infant to derive the reason why the infant is crying. The image and the sound represent the same cry event. The image processing module determines the state of certain(More)
Anisosmotic cell swelling triggers a regulatory volume decrease (RVD) in cell lines derived from human nonpigmented ciliary epithelium. Measurements of cell volume have indicated that the RVD reflects activation of K+ and/or Cl- channels. We have begun to characterize the putative channels by whole cell patch clamping. The results obtained by altering the(More)
Recently, a " usable speech " extraction system [1] was proposed to separate co-channel speech into " usable " frames that are minimally corrupted by interfering speech. Studies indicate [2] that a significant amount of co-channel speech can be considered " usable " for speaker identification (SID). Therefore, it is necessary to establish criteria for(More)
Electronic cell sizing has been used to measure the volume of cells suspended in isosmotic and in hyposmotic solutions of identical ionic composition. Without inhibitors, the cells displayed a regulatory volume decrease (RVD) following anisosmotic cell swelling with a time constant (tau) of 6.3 +/- 0.9 min (mean +/- S.E.). The RVD was markedly impaired by(More)
Cells (ODM C1-2/SV40) derived from human non-pigmented ciliary epithelial cells were studied by electronic cell sizing. The time course of the cell volume (vc) was monitored after suspending cells in paired experimental and control, isosmotic and hyposmotic solutions of identical ionic composition. Following anisosmotic cell swelling, the cells displayed(More)
Recently, a novel method to process co-channel speech was proposed [1]. Previous methods include enhancing the target speech, or suppressing the interfering speech or both enhancing the target and suppressing the interferer. The proposed new method searches for usable speech frames which are usually found in clusters under co-channel conditions. The term(More)