A method for conducting an ultrasonic-based inspection, the method comprising: receiving, by one or more processors, a plurality of scan plan parameters associated with generating an image of at least one flaw within a specimen based on acoustic echo data; applying the plurality of scan plan parameters to an acoustic model, the acoustic model configured to determine a two-way pressure response of a plurality of inspection modes based on specular reflection and diffraction phenomena; generating, by the acoustic model based on the plurality of scan plan parameters, an acoustic region of influence, i.e. AROI, comprising an acoustic amplitude sensitivity map for a first inspection mode amongst the plurality of inspection modes; and generating, for display, a first image comprising the AROI associated with the first inspection mode for capturing or inspecting the image of the at least one flaw; retrieving an amplitude threshold; generating a first multi-mode image by removing portions of the first image that have intensity amplitudes that fall below the amplitude threshold; generating, by the acoustic model based on the plurality of scan plan parameters, another acoustic region of influence, i.e. AROI, comprising another acoustic amplitude sensitivity map for a second inspection mode amongst the plurality of inspection modes; generating, for display, a second image comprising the AROI associated with the second inspection mode; generating a second multi-mode image by removing portions of the second image that have intensity amplitudes that fall below the amplitude threshold; combining the first multi-mode image associated with the first inspection mode and the second multi-mode image associated with the second inspection mode into a composite multi-mode image, wherein the first multi-mode image is visually distinguished from the second multi-mode image in the composite multi-mode image. receiving, by one or more processors, a plurality of scan plan parameters associated with generating an image of at least one flaw within a specimen based on acoustic echo data; applying the plurality of scan plan parameters to an acoustic model, the acoustic model configured to determine a two-way pressure response of a plurality of inspection modes based on specular reflection and diffraction phenomena; generating, by the acoustic model based on the plurality of scan plan parameters, an acoustic region of influence, i.e. AROI, comprising an acoustic amplitude sensitivity map for a first inspection mode amongst the plurality of inspection modes; and generating, for display, a first image comprising the AROI associated with the first inspection mode for capturing or inspecting the image of the at least one flaw; retrieving an amplitude threshold; generating a first multi-mode image by removing portions of the first image that have intensity amplitudes that fall below the amplitude threshold; generating, by the acoustic model based on the plurality of scan plan parameters, another acoustic region of influence, i.e. AROI, comprising another acoustic amplitude sensitivity map for a second inspection mode amongst the plurality of inspection modes; generating, for display, a second image comprising the AROI associated with the second inspection mode; generating a second multi-mode image by removing portions of the second image that have intensity amplitudes that fall below the amplitude threshold;