Speech separation systems usually operate on the short-time Fourier transform (STFT) of noisy speech, and enhance only the magnitude spectrum while leaving the phase spectrum unchanged. This is done because there was a belief that the phase spectrum is unimportant for speech enhancement. Recent studies, however, suggest that phase is important for perceptual quality, leading some researchers to consider magnitude and phase spectrum enhancements. We present a supervised monaural speech separation approach that simultaneously enhances the magnitude and phase spectra by operating in the complex domain. Our approach uses a deep neural network to estimate the real and imaginary components of the ideal ratio mask defined in the complex domain. We report separation results for the proposed method and compare them to related systems. The proposed approach improves over other methods when evaluated with several objective metrics, including the perceptual evaluation of speech quality (PESQ), and a listening test where subjects prefer the proposed approach with at least a 69% rate.
This paper reports a series of studies on the development of the Personal Authority in the Family System (PAFS) questionnaire. The PAFS questionnaire is designed to measure family processes based on aspects of current intergenerational family theory (Williamson, 1981, 1982b). Eight scales which measure concepts such as differentiation/fusion, intimacy/isolation, and personal authority/intimidation in the three‐generational context comprise the questionnaire. Study 1 indicates that the scales have good internal consistency and good test‐retest reliability. Correlations with other measures of family processes provide validity for some of the PAFS scales. Study 2 confirms the underlying factor structure of the PAFS questionnaire and supports the construct validity of the scales. Implications for intergenerational family theory and applications in research and clinical practice are discussed.
This paper proposes a stage in the family life cycle, occurring in the fourth decade of life, the goal of which is to terminate the hierarchical boundary between the adult client and the older parents. This requires a radical renegotiation of the power structures in the relationships between the two generations, and in the interactional political patterns which ensue from these. The essence of the process is a redistribution of power in the direction of equality, with the intention of establishing a peer relationship between the first and second generations in the three generational family cycle. This experience is understood to be power politics at the source.
In real-world situations, speech is masked by both background noise and reverberation, which negatively affect perceptual quality and intelligibility. In this paper, we address monaural speech separation in reverberant and noisy environments. We perform dereverberation and denoising using supervised learning with a deep neural network. Specifically, we enhance the magnitude and phase by performing separation with an estimate of the complex ideal ratio mask. We define the complex ideal ratio mask so that direct speech results after the mask is applied to reverberant and noisy speech. Our approach is evaluated using simulated and real room impulse responses, and with background noises. The proposed approach improves objective speech quality and intelligibility significantly. Evaluations and comparisons show that it outperforms related methods in many reverberant and noisy environments.
Present transgenerational family therapy theory is analyzed, and it is suggested that individuation is on a continuum with fusion-triangulation (family systems theory), that relational ethics are on a continuum with invisible loyalties (contextual family therapy), and that there is in fact but one continuum, so that these terms are well-nigh interchangeable. Individuation-relational ethics is presented in a (Hegelian) dialectic with intimacy; and personal authority in family experience is offered as the synthesizing construct in this dialectic. The change process in transgenerational family therapy is briefly noted. I t is suggested that playfulness, including paradox and absurdity, is an effective intervention into the intense emotionality of intergenerational work. A framework for and sequence of playful interventions are described.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.