transcribe-stream -a not working from input file / stdin

[lukifer]

Running the following results in a no-op on both 2.0 and latest:

voice2json transcribe-stream -a etc/test/what_time_is_it.wav --wav-sink streamtest.wav --event-sink streamtest.log

The resulting wav-sink is hiccup-y noise, and the event sink is:

{"type": "speech", "time": 0.06}
{"type": "silence", "time": 0.24}
{"type": "speech", "time": 1.4400000000000008}
{"type": "silence", "time": 1.620000000000001}
{"type": "speech", "time": 8.459999999999981}
{"type": "silence", "time": 8.639999999999983}
{"type": "speech", "time": 8.759999999999984}
{"type": "started", "time": 9.059999999999986}
{"type": "silence", "time": 10.439999999999998}
{"type": "stopped", "time": 11.760000000000009}
{"type": "speech", "time": 0.18}
{"type": "started", "time": 0.48}
{"type": "silence", "time": 0.54}
{"type": "speech", "time": 1.0200000000000005}
{"type": "silence", "time": 4.859999999999998}
{"type": "stopped", "time": 5.459999999999994}
{"type": "speech", "time": 0.54}
{"type": "started", "time": 0.8400000000000003}
{"type": "silence", "time": 1.560000000000001}
{"type": "stopped", "time": 3.5400000000000027}
{"type": "speech", "time": 4.56}
{"type": "silence", "time": 4.859999999999998}

Thanks again for your hard work on voice2json! 🙂

[synesthesiam]

You're welcome :)

Everything is working, it's just that the example WAV file has the wrong sample rate (48 Khz). Additionally, there needs to be a bit of silence at the end for the state machine to work.

Here's an example using sox to do both the conversion to 16Khz and the silence padding at the end. Hope this works for you!

$ sox etc/test/what_time_is_it.wav -r 16000 -e signed-integer -c 1 -t raw - pad 0 1 | \
    voice2json transcribe-stream -a - --wav-sink streamtest.wav --event-sink streamtest.log

[lukifer]

Thanks for the silence / state machine context, that's very helpful! Still getting a no-op running that command, on both Mac and RPi, now just echoes Ready.

[synesthesiam]

Ah, I see the problem now. Fixed in 12dea31

I'll get this fix pushed into the Docker image and Deb packages soon. Thanks!

[lukifer]

That fixed it, thanks so much!