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High-precision spectral analysis techniques are the important means to carry out research of rotor system stability. It can be achieved feature extraction parameters about rotor system steady-state and spectrum of vibration signals during speeding-change process. For a big calculation error problem existed in commercial software come with spectral analysis in the status, It is proposed that the spectrum...
Dynamic Time Wrapping is a non-linear distance measure solution, widely used in query by humming. This paper have a body of work on cross-sentence retrieval, end point loose, cost function and their improvements to raise DTW performance of query by humming. Based on these researches we build a prototype of hierarchical matching humming system. During the test of database contains 500 songs and 55...
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