19. The method of claim 18 , wherein the method further comprises: during the transcription stage: dynamically analyzing, by the adaptive self-trained computer engine, at least two adjacent to-be-transcribed speech audio segments of the plurality of to-be-transcribed speech audio segments to determine that the at least two adjacent to-be-transcribed speech audio segments comprise utterances received from a plurality of users when at least one first audio feature of at least one first to-be-transcribed speech audio segment of the at least two adjacent to-be-transcribed speech audio segments, which is representative of to-be-transcribed speech audio data of a first user, differs from at least one second audio feature of at least one second to-be-transcribed speech audio segment of the at least two adjacent to-be-transcribed speech audio segments which is representative of to-be-transcribed speech audio data of a second user.
19. The method of claim 18 , wherein the method further comprises: during the transcription stage: dynamically analyzing, by the adaptive self-trained computer engine, at least two adjacent to-be-transcribed speech audio segments of the plurality of to-be-transcribed speech audio segments to determine that the at least two adjacent to-be-transcribed speech audio segments comprise utterances received from a plurality of users when at least one first audio feature of at least one first to-be-transcribed speech audio segment of the at least two adjacent to-be-transcribed speech audio segments, which is representative of to-be-transcribed speech audio data of a first user, differs from at least one second audio feature of at least one second to-be-transcribed speech audio segment of the at least two adjacent to-be-transcribed speech audio segments which is representative of to-be-transcribed speech audio data of a second user. 28. The method of claim 19 , wherein the determination that the at least one first audio feature differ from the at least one second audio feature based on an output of a pre-trained machine classifier model.