The U. S. Environmental Protection Agency has proposed the use ofC‐weighted day/night level for the assessment of impulse noise such as the noise resulting from sonic boom, blast noise (artillery, armor, demolition, etc.) and other large‐amplitude impulse sources. One remaining question pertaining to the use ofC‐weighting has been the growth function for human response to impulse noise. This question arises because work by Kryter and by Young using peak values and/or small amplitudes exhibited growth functions of 6−7dB for a doubling of annoyance, while the growth function for human response to common sources (planes, vehicles, etc.) increases by about 10 dB for a doubling of annoyance. Kyter’s and Young’s data are reanalyzed herein by usingC‐weighting and by including only large‐amplitude data. This reanalysis results in a growth function for human response to impulse noise which increases by about 10 dB for a doubling of annoyance. This equality of growth function between commonA‐weighted noise andC‐weighted impulse noise further supports the use ofC‐weighted day/night level for assessment of sonic boom, blast noise, or other large‐amplitude impulse noises having similar spectral content.