This is a simple Node.js application that tests the Soniox streaming API by sending raw audio frames with a 20 millisecond frame rate, as on telephony networks. The audio format is PCM linear 16-bit with 8khz sampling.
The test file provided contains 8 seconds of audio. The speaker begins speaking at roughly 3 seconds and 300 milliseconds and speaks until about the 6 second 500 millisecond time. The audio ends at 8 seconds.
The speaker is saying: "Is the meeting tomorrow in the green room, or the red room?"
Interim transcripts are requested, and the purpose of the test is to see how soon after the speaker begins speaking we start to get interim transcripts. Every response from Soniox is logged with a timestamp.
npm ci
SONIOX_API_KEY=<your-key> AUDIO_FILE_PATH=./data/is-the-meeting-tomorrow.raw node To test against a different audio file, simply replace the environment variable above to point to your file. The encoding and sample rate must be as specified above.
My results do not show any interim transcripts being returned.
SONIOX_API_KEY=<api-key> AUDIO_FILE_PATH=./data/is-the-meeting-tomorrow.raw npm start
> soniox-streaming-test@1.0.0 start
> node index.js
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[8950 ms] Received: {"result":{"words":[{"text":"Is","start_ms":3360,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9785133134789241},{"text":"the","start_ms":3540,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.992914624769569},{"text":"needing","start_ms":3720,"duration_ms":180,"is_final":true,"speaker":0,"orig_text":"","confidence":0.7825312229017963},{"text":"tomorrow","start_ms":4080,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9986581276793751},{"text":"in","start_ms":4500,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.7832101344534589},{"text":"the","start_ms":4620,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9962533740736695},{"text":"green","start_ms":4860,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9995423410859292},{"text":"room","start_ms":5100,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9912343232514729},{"text":"or","start_ms":5520,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9950987205837319},{"text":"the","start_ms":5700,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9864211606099765},{"text":"red","start_ms":6000,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9886211427345235},{"text":"room","start_ms":6180,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.9370079834438084},{"text":".","start_ms":6780,"duration_ms":60,"is_final":true,"speaker":0,"orig_text":"","confidence":0.4266157770118886}],"speakers":[],"final_proc_time_ms":8160,"total_proc_time_ms":8160,"channel":0}}
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