Audio Stream-to-Text Conversion

HPE IDOL Speech Server can perform real-time speech-to-text conversion on an audio stream. The following sample configuration is for such a task.

[StreamToText]
0 = a ← stream(MONO, input)
1 = f ← frontend(_, a)
2 = nf ← normalizer(_, f)
3 = w ← stt(_, nf)
4 = output ← wout(_, w)
DefaultResults=Out
0 The stream module processes stream audio data.
1 The frontend module converts audio data into speech front-end frame data.
2 The normalizer module normalizes frame data from 1 (f).
3 The stt module converts normalized frame data from 2 (nf) into text.
4 The wout module writes the recognized words resulting from 3 (w) to the output file.

You can also use the [StreamToTextMusicFilter] schema to combine audio stream-to-text conversion with speech classification in a single step so that you can then remove sections classified as music or noise from the resulting output file.


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