|
| |
|
| |
|
| |
|
| |
|
| |
|
|
The elastic wave propagation over the shape transitions of bodies
Morávka, Š. ; Hora, Petr
The work treats the elastic wave propagation in the basic construction elements of structures. The samples with the most common shape transitions are used. Results of analytical computations, numerical simulations and experimental results are verified and compared mutually. The generalized ray theory, the FEM (implemented in software MARC/MENTAT)and the transient piezoceramic transducers are used.
|
|
|
Processing of undersampled blade signals
Balda, Miroslav
The paper deals with a method of processing samples of instantaneous positions of blades of a turbine wheel when passing along a sensor attached to the stator of the turbine. The signals are highly undersampled, since the natural frequencies of blades are much higher than the sampling frequency. The paper reveals the way of signal reconstruction based on a priory knowledge of the blade natural frequencies.
|
|
|
Frequency scale mapping methods for voice conversion
Přibilová, Anna
The research report compares several approcaches to frequency scale mapping for voice conversion. All the presented methods may be used for transformation of voice characteristics between male and female or childisch. The advantage of the proposed non-linear methods is possibility of their implementation in the text-to-speech systems with cepstral description because of the unchanged number of points of the modified speech spectrum envelope in FFT-based methods.
|
|
| |
|
| |
guest ::
