Switching between speech recognition systems

A method comprising:

• obtaining, at a system, first audio data during a first communication session that includes a device;
• selecting, automatically and independently by the system based on a first availability of a plurality of first transcription units, a first transcription unit of the plurality of first transcription units instead of one of a plurality of second transcription units to generate a transcription of the first audio data to direct to the device, wherein the plurality of first transcription units use a first process to generate transcripts and the plurality of second transcription units use a second process to generate transcripts that is different than the first process;
• in response to selecting the first transcription unit, directing, by the system, the transcription generated by the first transcription unit to the device;
• obtaining, by the system, second audio data during a second communication session that includes the device and that is different from the first communication session;
• and
• selecting, automatically and independently by the system based on a second availability of the plurality of first transcription units, a second transcription unit of the plurality of second transcription units instead of one of the plurality of first transcription units to generate a transcription of the second audio data to direct to the device, the second availability of the plurality of first transcription units indicating that at least one of the plurality of first transcription units is estimated to be available for at least a portion of the second communication session.

A system comprising:

• at least one computing system;
• and
• at least one computer-readable media coupled to the at least one computing system, the at least one computer-readable media configured to store one or more instructions that in response to being executed by the at least one computing system cause performance of operations, the operations comprising:
• obtain first audio data during a first communication session that includes a device;
• select, automatically and independently by the computing system based on a first availability of a plurality of first transcription units, a first transcription unit of the plurality of first transcription units instead of one of a plurality of second transcription units to generate a transcription of the first audio data to direct to the device, wherein the plurality of first transcription units use a first process to generate transcripts and the plurality of second transcription units use a second process to generate transcripts that is different than the first process;
• in response to selecting the first transcription unit, direct the transcription generated by the first transcription unit to the device;
• obtain second audio data during a second communication session that includes the device and that is different from the first communication session;
• and
• select, automatically and independently by the computing system based on a second availability of the plurality of first transcription units, a second transcription unit of the plurality of second transcription units instead of one of the plurality of first transcription units to generate a transcription of the second audio data to direct to the device, wherein at the selection of the second transcription unit the plurality of first transcription units are operational and the second availability of the plurality of first transcription units indicates that a particular number of the plurality of first transcription units, which are idle and currently ready to immediately generate transcriptions of audio, is below or estimated to be a threshold.