Amazon transcribe streaming response error

[josephadd]

I'm working with Amazon transcribe streaming api. the below code gives me the corresponding error below. Please can someone help me out? Thank you

  async function startTranscription(bucketName: string, key: string) {
    const LanguageCode = "en-US";
    const MediaEncoding = "pcm";
    const MediaSampleRateHertz = 44100;

    const client = new TranscribeStreamingClient({ region: "eu-central-1" });

    const s3Client = new S3Client({ region: "eu-central-1" });
    const getObjectParams = { Bucket: bucketName, Key: key };
    const objectStream = await s3Client.send(new GetObjectCommand(getObjectParams));

    const audioStream = Readable.from(objectStream.Body as Readable);
    const transformedStream = new PassThrough();
    audioStream.pipe(transformedStream);

    const params = {
      LanguageCode,
      MediaEncoding,
      MediaSampleRateHertz,
      AudioStream: transformedStream as AsyncIterable<AudioStream>,
    };

    const command = new StartStreamTranscriptionCommand(params);

    // Send transcription request
    try {
      const response = await client.send(command);
      console.log("RES:", response)
      if (response.TranscriptResultStream) {
        for await (const event of response.TranscriptResultStream) {
          console.log(JSON.stringify(event));
        }
      }
    } catch (error) {
      console.log("Error during transcription:", error);
    }
  }
  

Error: Cannot read properties of undefined (reading '0')

Trace: C:\Users\JosephAdeabah\Documents\myTranscribe\my-sst-app\node_modules@aws-sdk\client-transcribe-streaming\dist-es\models\models_0.js:21
return visitor._(value.$unknown[0], value.$unknown[1]);
^

TypeError: Cannot read properties of undefined (reading '0')

@yenfryherrerafeliz Can you help me please?

[yenfryherrerafeliz]

Hii @josephadd, sorry to hear about your issues. Could you please let me know which SDK minor version are you using, and could you please also provide runtime details such as if are you running on nodejs or browser?

Thanks!

[josephadd]

Hello @yenfryherrerafeliz , I'm using javascript v3. I'm running it in node js SST https://sst.dev/ environment.
Sorry for replying late. I'm still looking for a solution to this. Thanks for replying to me

[jeffklassen]

Has any progress been made here? I'm having the same problem.

[josephadeabah]

Hi @jeffklassen Sorry I stopped working on this. Someone else might help.

[TanjaBayer]

For me it worked like this, however, make sure the file is properly encoded, that caused me a lot of problems 🤣

  const params: StartStreamTranscriptionCommandInput = {
    LanguageCode,
    MediaEncoding,
    MediaSampleRateHertz,
    AudioStream: (async function* () {
      for await (const chunk of objectStream.Body) {
        yield { AudioEvent: { AudioChunk: chunk } };
      }
    })(),
  };
    const command = new StartStreamTranscriptionCommand(params);
  // Send transcription request
  const response = await transcribeClient.send(command);