DEL-24775 - Support Multichannel Mod#121
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…into run, producer and consumer methods
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LGTM in general, few comments here and there but nothing substantial
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This change introduces support for multichannel mode. Behaviour is explained in https://speechmatics.atlassian.net/wiki/spaces/~712020b3713ebb71814ed991afdd6d43fc1ac6/pages/4717805569/Summary+of+changes+-+Realtime+Multichannel+and+Channel+Diarization
This current implementation allows users to specify multichannel mode using the flag and arguments
--multichannel <channel_name_1>,<channel_name_2>...<channel_name_n>. This must also include a--diarizationtype of eitherchannelorchannel_and_speaker.As the engine configures all recognisers for multichannel to use the same audio format, audio formats of all inputs must also be matched with each other.