A method and device for the ultrasonic testing of test objects by means of a test head. A computer device directly acquires, during a SAFT analysis for determining points in time of the amplitudes to be summed up from among the image time signals, a propagation time, which depends on the test head, from the test head positioned at a measuring point to the location of each of a plurality of voxels and uses the propagation time for calculating an amplitude total for the plurality of voxels.