Method for acoustically measuring material properties of a test piece at high temperatures, comprising the steps of: a. heating the test piece to within a testing temperature range ; b. performing a background measurement within said testing temperature range by capturing a vibrational signal from the test piece within a calibration period, thereby obtaining a noise signal ; c. performing an acoustic measurement on said test piece within said testing temperature range and within a testing period by: c1. imparting a vibrational excitation onto the test piece ; c2. capturing a vibrational signal of the test piece within the testing period, thereby obtaining a vibrational response signal to said vibrational excitation , and d. obtaining the material properties of the test piece by analysing the vibrational response signal , thereby taking into account the noise signal, wherein the vibrational excitation of step c1 is mechanically induced onto the test piece, whereby an impact system comprising a ballistic impactor and an impactor actuator is used, whereby the impact actuator is configured to give an impulse to said ballistic impactor , and using said ballistic impactor for imparting a vibrational excitation onto the test piece , whereby in the acoustic measurement step c, a measurement impulse is provided to the ballistic impactor which imparts a vibrational excitation onto the test piece in step c1 , and whereby in the background measurement step b, a background impulse is provided to the ballistic impactor which does not impart a vibrational excitation onto the test piece , whereby the noise signal comprises noise arising from the impactor actuator and the ballistic impactor. a. heating the test piece to within a testing temperature range ; b. performing a background measurement within said testing temperature range by capturing a vibrational signal from the test piece within a calibration period, thereby obtaining a noise signal ; c. performing an acoustic measurement on said test piece within said testing temperature range and within a testing period by: c1. imparting a vibrational excitation onto the test piece ; c2. capturing a vibrational signal of the test piece within the testing period, thereby obtaining a vibrational response signal to said vibrational excitation , and c1. imparting a vibrational excitation onto the test piece ; c2. capturing a vibrational signal of the test piece within the testing period, thereby obtaining a vibrational response signal to said vibrational excitation , and d. obtaining the material properties of the test piece by analysing the vibrational response signal , thereby taking into account the noise signal, wherein the vibrational excitation of step c1 is mechanically induced onto the test piece, whereby an impact system comprising a ballistic impactor and an impactor actuator is used, whereby the impact actuator is configured to give an impulse to said ballistic impactor , and using said ballistic impactor for imparting a vibrational excitation onto the test piece , whereby in the acoustic measurement step c, a measurement impulse is provided to the ballistic impactor which imparts a vibrational excitation onto the test piece in step c1 , and whereby in the background measurement step b, a background impulse is provided to the ballistic impactor which does not impart a vibrational excitation onto the test piece , whereby the noise signal comprises noise arising from the impactor actuator and the ballistic impactor. <EOS>