Is it possible to convert mp3 files into text without playing it using the microphone, for example, when listening to an audiobook with the mobile device? I was looking for relevant API in IBM Watson but can't find the solution.
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Google has a nice API – Patrick Sturm Nov 24 '18 at 23:10
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From Google cloud speech to text documentation :Real-time Streaming or Prerecorded Audio Support Audio input can be streamed from an application’s microphone or sent from a prerecorded audio file (inline or through Google Cloud Storage). Multiple audio encodings are supported, including FLAC, AMR, PCMU, and Linear-16. – Julia Kovalchuk Nov 24 '18 at 23:25
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@PatrickSturm thank you – Julia Kovalchuk Nov 24 '18 at 23:25
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Thereis no good/direct way to grab the audio output on android. Record Android Audio Output
For Speech to Text you could use the Google API
Although if you have the mp3, it should be no problem to convert it to text with Google API.

Timothy Lukas H.
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