Most pitch excited channel vocoders require the fundamental or laryngeal frequency of the input speech to be present if the output speech is to be of high quality. In order to determine if speech whose fundamental is absent can have its pitch accurately restored so as to be used as an input to a vocoder, a computer simulation was performed. The fundamental was restored by passing the speech thr...

In this study, a moderately flexible rotor is investigated experimentally in water channel. The consists of single blade with simplified rectangular geometry and tested various pitch angles at different rotational speeds. flapwise bending deformation induced torsion the are measured using image processing tools, flow fields extracted Particle Image Velocimetry. behaviour depends strongly on ang...

In this paper, we introduce a pitch detection algorithm that is particularly robust for telephone speech and prosodic modeling. The algorithm uses a logarithmically sampled spectral representation of speech, similar to that in the subharmonic summation approach [2]. Constraints for log F0 and ∆ logF0 are combined in a dynamic programming search to find an optimum pitch track. The search algorit...

In this study, the roll, yaw and depth fuzzy control of an Au- tonomous Underwater Vehicle (AUV) are addressed. Yaw and roll angles are regulated only using their errors and rates, but due to the complexity of depth dynamic channel, additional pitch rate quantity is used to improve the depth loop performance. The discussed AUV has four aps at the rear of the vehicle as actuators. Two rule bases...

Whether the mechanisms giving rise to pitch reflect spectral or temporal processing has long been debated. Generally, sounds having strong harmonic structures in their spectra have strong periodicities in their temporal structures. We found that when a wideband harmonic tone complex is passed through a noise vocoder, the resulting sound can have a harmonic structure with a large peak-to-valley ...

The temporal and spatial characteristics of the cortical processes responsible for absolute pitch (AP) and relative pitch (RP) were investigated by multi-channel event-related potentials (ERPs). Compared to listening, pitch-naming of tones in non-possessors of AP elicited three ERP components (P3b, parietal positive slow wave, frontal negative slow wave) over parietal and frontal scalp between ...

In this paper, we investigate the source–filter-based approach for single-channel speech separation. We incorporate source-driven aspects by multi-pitch estimation in the model-driven method. For multi-pitch estimation, the factorial HMM is utilized. For modeling the vocal tract filters either vector quantization (VQ) or non-negative matrix factorization are considered. For both methods, the fi...

Whether the mechanisms giving rise to pitch reflect spectral or temporal processing has long been debated. Generally, sounds having strong harmonic structures in their spectra have strong periodicities in their temporal structures. We found that when a wideband harmonic tone complex is passed through a noise vocoder, the resulting sound can have a harmonic structure with a large peak-to-valley ...

Title of Document: MAXIMUM LIKELIHOOD PITCH ESTIMATION USING SINUSOIDAL MODELING Vijay Mahadevan, Master of Science, 2010 Directed By: Dr. Carol Y. Espy-Wilson Department of Electrical and Computer Engineering The aim of the work presented in this thesis is to automatically extract the fundamental frequency of a periodic signal from noisy observations, a task commonly referred to as pitch estim...