1. A method, comprising: receiving acoustic waveform data representing acoustic signals traversing at least a portion of a borehole adjacent a subterranean formation; performing a direct wavelet transform operation on the acoustic waveform data to generate first transformed data, the first transformed data comprising a time-frequency-domain representation of the acoustic waveform data; stacking the first transformed data to form a coherence data set; identifying a first wave component of interest via the coherence dataset, wherein the first wave component of interest is a casing arrival waveform; extracting second transformed data in the time-frequency domain associated with the first wave component; generating third transformed data in the time-frequency domain by removing the second transformed data from the first transformed data; and performing an inverse wavelet transform operation on the third transformed data in the time-frequency domain to generate filtered acoustic waveform data in time domain.