This paper presents a local audio watermarking method based on the dual-tree complex wavelet transform (DT CWT) and distortion-compensated dither modulation (DC-DM). Specifically. we perform DT CWT on extracted audio segment. and embed the watermark signal in the decomposed low-pass coefficients. https://www.roneverhart.com/MagnaFlow-2000-Dodge-Dakota-California-Grade-CARB-Compliant-Direct-Fit-Catalytic-Converter/