Matlab：实现音频信号的多级采样率转换
frameSize = 64;
inFs = 96e3;source = dsp.Chirp(InitialFrequency=0,TargetFrequency=48e3, ...SweepTime=8,TargetTime=8,SampleRate=inFs, ...SamplesPerFrame=frameSize,Type="Quadratic");SpectrumAnalyzer44p1 = spectrumAnalyzer( ...SampleRate=44100, ...Method="welch", ...AveragingMethod="exponential", ...ForgettingFactor=1e-7, ...ViewType="spectrum-and-spectrogram", ...TimeSpanSource="property",TimeSpan=8, ...Window="kaiser",SidelobeAttenuation=220, ...YLimits=[-250, 50],ColorLimits=[-150, 20]
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