We present a comprehensive theoretical study of linear wave scattering from magnetic domain walls with varied twist angles $\mathrm{\Theta }$ in spin-$1/2$ Bose-Einstein condensates (BECs). Using a gauge transformation, we show that scattering observables depend solely on the total twist $\mathrm{\Theta }$, independent of chirality. Within the Bogoliubov–de Gennes (BdG) framework, we develop a transfer-matrix method to compute reflection and transmission coefficients for incident phonons and free particles. Our results reveal a scattering threshold at the Zeeman energy $E=\hslash {\mathrm{\Omega }}_0$, separating a pure phonon regime from multichannel scattering involving both collective and single-particle excitations above threshold. Above a critical twist angle ${\mathrm{\Theta }}_c$, the effective spin rotation deviates from the imposed twist angle, leading to comb-like density modulations and Fano-like resonances below the threshold $\hslash {\mathrm{\Omega }}_0$. The transition probability between phonon and particle channels is strongly tunable with $\mathrm{\Theta }<{\mathrm{\Theta }}_c$, enhanced for odd multiples of $\pi$ but suppressed for even multiples. These findings establish twist-engineered domain walls as a versatile platform for controlling quantum transport, with implications for atomtronic devices and quantum simulation.

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• Cold atoms & matter waves
• Domain walls
• Synthetic gauge fields
• Bose-Einstein condensates