[버그, 완료] PC의 곰레코더로 음성파일녹음후 Google-Speech-API 실행시 텍스트변환 실패 문제

파일명: webapp/google-speech-api.sh

예제 코드


export GOOGLE_APPLICATION_CREDENTIALS=/work/sintoburi-79c7917331aa.json

sudo rm -f 201809020010_0841b2171cc32a2d40c830a98cf73201.flac sudo ffmpeg -i 201809020010_0841b2171cc32a2d40c830a98cf73201.m4a -ac 1 -af aformat=s16:44100 201809020010_0841b2171cc32a2d40c830a98cf73201.flac

speech=/home/hjoon0510/google-speech-api/php-docs-samples/speech/speech.php /usr/bin/php $speech transcribe 201809020010_0841b2171cc32a2d40c830a98cf73201.flac --encoding FLAC --language-code ko-KR --sample-rate 44100


* 에러 메세지
```bash
 $speech transcribe 201809020010_0841b2171cc32a2d40c830a98cf73201.flac  --encoding FLAC --language-code ko-KR --sample-rate 44100

In RequestWrapper.php line 263:

  {
    "error": {
      "code": 400,
      "message": "Invalid audio channel count",
      "status": "INVALID_ARGUMENT"
    }
  }

transcribe [--encoding ENCODING] [--language-code LANGUAGE-CODE] [--sample-rate SAMPLE-RATE] [--] <audio-file>

해결방법
- 참고 자료: https://groups.google.com/forum/#!topic/cloud-speech-discuss/bLZnAN3CkIk
- 해결방법:
- Use '-ac' option -ac[:stream_specifier] channels (input/output,per-stream) Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options.
- 변경전: speech=/home/hjoon0510/google-speech-api/php-docs-samples/speech/speech.php /usr/bin/php $speech transcribe 201809020010_0841b2171cc32a2d40c830a98cf73201.flac --encoding FLAC --language-code ko-KR --sample-rate 44100
- 변경후: sudo ffmpeg -i 201809020010_0841b2171cc32a2d40c830a98cf73201.m4a -ac 1 -af aformat=s16:44100 201809020010_0841b2171cc32a2d40c830a98cf73201.flac

lsy0314 / sintoburi

[버그, 완료] PC의 곰레코더로 음성파일녹음후 Google-Speech-API 실행시 텍스트변환 실패 문제 #24