Martin, aplay works fine here with non-48000Hz .wav, at least for 8000Hz, 16000Hz and 48000Hz, not tried 44100Hz as I don't have any sample wav here.
Martin, aplay works fine here with non-48000Hz .wav, at least for 8000Hz, 16000Hz and 48000Hz, not tried 44100Hz as I don't have any sample wav here.