The process of multiplying a constant to the time axis of a signal is known astime scaling of the signal. The time scaling of signal may be time compression or time expansion depending upon the value of the constant or scaling factor. The time scaling operation of signals is very useful wh...
In subsequent sections we present three different techniques appropriate both for pitch shifting and for time scaling. These techniques use three different time-frequency representations of a signal, namely short-time Fourier transform (STFT), continuous wavelet transform (CWT) and constant-Q transform ...
In this paper, we present an algorithm for time-scale modification of music signals, based on the waveform similarity overlap-and-add technique (WSOLA). A well-known disadvantage of the standard WSOLA is the uniform time-scaling of the entire signal, including the perceptually significant transient...
In one alternative, an audio signal is analyzed using multiple psychoacoustic criteria to identify a region of the signal in which time scaling and/or pitch shifting processing would be inaudible or minimally audible, and the signal is time scaled and/or pitch shifted within that region. In anot...
Rightshiftintime(3)Property3:RightshiftintimeSolution:信号与系统SignalsandSystems吉林大学PropertiesofLaplaceTransform:TimeScalingProperty4:TimescalingProof:信号与系统SignalsandSystems吉林大学PropertiesofLaplaceTransform:ConvolutionTheoremsProperty5:Convolutioninthet-domainProof:Property5:Convolutioninthet-domainContinued...
Create atimescopeobject. The input signals are a set of four sinusoidal signals. ts = timescope(YLimits=[-2 2]); x = linspace(0,10).'; y1 = sin(x); y2 = sin(x-0.5); y3 = sin(x-1); y4 = sin(x-1.5); Visualize the signals in the time scope. This plot shows the defa...
摘要: The authors consider the class of bilinear time-frequency representations (BTFR's) that are invariant (or covariant) to time shifts, frequency shifts, and time-frequency scalings. This "shift...关键词:ECONOMIC DISPATCH AGC RESERVE CONSTRAINTS ...
The Continuum of North Pacific Sea Level Pressure Patterns: Intraseasonal, Interannual, and Interdecadal Variability This study combines k-means cluster analysis with linear unidimensional scaling to illustrate the spatial and temporal variability of the wintertime North ... NC Johnson,SB Feldstein - 《...
In other words, scaling the input by a constant will produce an output scaled by the same constant; and combining (summing) two inputs will produce an output that is the sum of the outputs produced by the individual inputs.Figure 4: A linear system....
A circuit for time stamping event signals, e.g. zero-crossings, using coarse and fine timers. The fine timer is a circuit section which subdivides a period from a phase-locked ring-oscillator into 2N subparts. An event signal is timed by latching a digital representation of a particular sub...