Re-recording audio vs. convoluting old audio data - differences? I want to transform a studio audio dataset into a smartphone audio dataset (used for a speech recognition application). Would there be any difference in the resulting audio files using one of the following two aproaches?


Replay all audio files and record with smartphone.
Convolute files with smartphone microphone impulse response, assuming the impulse response was determined using the same setup as
    in "1.".
Would there be any difference in the resulting audio files using one of the following two aproaches?


There would be a difference - probably negligible - which would represent the non-linearity or time-dependence in the system.