摘要:
The present invention provides a parametric speech synthesis method and a parametric speech synthesis system. The method comprises sequentially processing each frame of speech of each phone in a phone sequence of an input text as follows: for a current phone, extracting a corresponding statistic model from a statistic model library and using model parameters of the statistic model that correspond to the current frame of the current phone as rough values of currently predicted speech parameters; according to the rough values and information about a predetermined number of speech frames occurring before the current time point, obtaining smoothed values of the currently predicted speech parameters; according to global mean values and global standard deviation ratios of the speech parameters obtained through statistics, performing global optimization on the smoothed values of the speech parameters to generate necessary speech parameters; and synthesizing the generated speech parameters to obtain a frame of speech synthesized for the current frame of the current phone. With this solution, the capacity of an RAM needed by speech synthesis will not increase with the length of the synthesized speech, and the time length of the synthesized speech is no longer limited by the RAM.
摘要:
The present invention provides a parametric speech synthesis method and a parametric speech synthesis system. The method comprises sequentially processing each frame of speech of each phone in a phone sequence of an input text as follows: for a current phone, extracting a corresponding statistic model from a statistic model library and using model parameters of the statistic model that correspond to the current frame of the current phone as rough values of currently predicted speech parameters; according to the rough values and information about a predetermined number of speech frames occurring before the current time point, obtaining smoothed values of the currently predicted speech parameters; according to global mean values and global standard deviation ratios of the speech parameters obtained through statistics, performing global optimization on the smoothed values of the speech parameters to generate necessary speech parameters; and synthesizing the generated speech parameters to obtain a frame of speech synthesized for the current frame of the current phone. With this solution, the capacity of an RAM needed by speech synthesis will not increase with the length of the synthesized speech, and the time length of the synthesized speech is no longer limited by the RAM.
摘要:
A semiconductor device includes an active pattern provided on a substrate and a gate electrode crossing over the active pattern. The active pattern includes a first buffer pattern on the substrate, a channel pattern on the first buffer pattern, a doped pattern between the first buffer pattern and the channel pattern, and a second buffer pattern between the doped pattern and the channel pattern. The doped pattern includes graphene injected with an impurity.
摘要:
Methods and systems for analyzing bus traffic in a target device, such as a system on-a-chip (SOC) comprises capturing a processor event and generating an interrupt based on a threshold associated with the processor event. Based on at least the interrupt, a instruction pointer associated with the processor event that generated the interrupt is identified. An instruction analyzer identifies a memory address of the instruction associated with the processor event that generated the interrupt. At least the processor event and a associated instruction information are collected by a sample collector and transferred to a host for performance profiling.
摘要:
Neurovascular disorder critically contributes to the development and pathogenesis of Alzheimer's disease (AD). Transcriptional profiling of human brain endothelial cells (BEC) defines a subset of age-independent genes significantly altered in AD including the homebox gene GAX whose expression controls vascular phenotype and is low in AD. By using viral-mediated GAX gene silencing and transfer, restoring GAX expression in AD BEC is angio-genic, transcriptionally suppresses the AFX1 forkhead transcription factor-mediated apoptosis, and increases the levels of a major amyloid β-peptide (Aβ) clearance receptor, the low density lipoprotein receptor-related protein 1 (LRP-1) at the blood-brain barrier. In a mouse model of Alzheimer's disease, deletion of the Gax gene results in reductions in brain capillary density and the resting cerebral blood flow, loss of angiogenic brain response to hypoxia, and an impaired Aβ brain efflux caused by reduced LRP-1 levels. The link of GAX gene to AD neurovascular dysfunction provides new mechanistic and therapeutic insights into AD.