M61500FP is the sound controller IC that built in QSurround system. The article introduces the composition block diagram, pin function, control signals & data format, function and features of M61500FP as well as its application.
In this paper, a design of digital tuning system of vehicle sound equipment is introduced. After introducing principle of PLL frequency synthesizer, the method of using Lingyang MCU to realize digital tuning is introduced. The design principle of the lowpass filter circuit is discussed, and also, the flow chart of auto-searching is presented.
By examining the inner quantity presentation of ABB construction, the 4th chapter finds that the quantity scale of ABB construction constituted by various BB and the same A, varies according to the sonority of BB: the higher the sonority is, the higher the scale is and vice versa.
Bartok's harmony is full of innovation too, he employs series into his composition, his mode-chromaticism is established on base of folk music multi-mode, and his distinctive harmony sonority is the combination of modern harmony and folk music.
This algorithm is provided with a sound theoretic basis, and its computing complexity is relatively lower and not strongly dependent on the data length.
Relationships between longitudinal and radial Picea genera sound vibration parameters
Longitudinal sawn wood are usually selected as samples in the study of sound properties of a musical instrument board.
Therefore, it is very important to evaluate the vibration properties of the board in the round, especially for the sound radiation characteristic of radial sawn timber and its relationship to longitudinal sawn timber.
However, for the national and international experts, researches on radial sawn timber and its role and function in sound emission have not yet been developed.