21.6 azspeech transcribe
command will, by default, listen for up to 15 seconds of speech from
the microphone and then convert it to text, written to the
console. The command can also be used to transcribe speech from an
audio file (wav) provided as the
FILENAME argument. The source
may be required, though several languages are automatically
$ ml transcribe azspeech [FILENAME] -l <lang> --lang=<lang>
A simple example, listening for the audio on the microphone:
ml transcribe azspeech
might result in:
The machine learning hub is useful for demonstrating capability of models as well as providing command line tools.
The command can take an audio wav file, as an optional argument, and transcribe it to the console. For large audio files this can take some time. Currently only wav files are supported through the command line (though the cloud service also supports mp3, ogg, and flac).
wget https://github.com/realpython/python-speech-recognition/raw/master/audio_files/harvard.wav ml transcribe azspeech harvard.wav
This will transcribe the audio as the following text:
The stale smell of old beer lingers it takes heat to bring out the odor. A cold dip restore's health and Zest, a salt pickle taste fine with Ham tacos, Al Pastore are my favorite a zestful food is the hot cross bun.
To convert from other audio formats to a suitable wav file see the section on converting audio formats in the GNU/Linux Desktop Survival Guide.
To save the output to a text file simply use the shell redirect
$ ml transcribe azspeech harvard.wav > harvard.txt $ cat harvard.txt The stale smell of old beer lingers it takes heat to bring out the odor. A cold dip restore's health and Zest, a salt pickle taste fine with Ham tacos, Al Pastore are my favorite a zestful food is the hot cross bun.
The transcribe command will only record up to 15 seconds. To transcribe more that this from your own recorded voice, simply save the recording into a file and then transcribe that file. See the section on recording audio from the GNU/Linux Desktop Survival Guide for details.
A powerful graphical tool to record audio is audacity but a simple command line application to record from the computer’s microphone is arecord.
arecord -f S16_LE myrecording.wav
Terminate the recording session with
Ctrl-C and then trascribe the
ml transcribe azspeech myrecording.wav > myrecording.txt
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