How to save image of cqt (Constant-Q nonstationary Gabor transform) from KHz to Hz

I want to save the image of cqt.but the result is kHz,I want Hz

Answer 1

[Star Strider]

Try something like this —

load handel
figure
cqt(y,'SamplingFrequency',Fs)
Ax = gca;
ytv = Ax.YTick;
Ax.YTickLabel = compose('%4d',ytv*1E+3);
Ax.YLabel.String = 'Frequency (Hz)';

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