Before revision:  The results indicate as long as we have a good E2E model pre-trained on normal  speech, a relatively small set of whispered speech may suffice to obtain a reasonably good E2E whispered speech recognizer.
After revision:  The results indicate as long as we have a good E2E model pre-trained on normal or pseudo-whispered speech, a relatively small set of whispered speech may suffice to obtain a reasonably good E2E whispered speech recognizer.