"An application error has occured" : Twilio Voice Response play function with public url from S3

Question

I am attempting to play an audio (a voicemail greeting) uploaded on AWS S3 with twilio-node. When I am testing this feature I am getting this voice response at the end of the call : "An application error has occured..."

I have uploaded the file with nestjs-s3 (in ContentType file.mimetype = 'audio/x-wav') :

 await this.s3
      .putBucketVersioning({
        Bucket: 'abc',
        VersioningConfiguration: {
          MFADelete: 'Disabled',
          Status: 'Enabled',
        },
      })
      .promise()
      .catch(error => {
        console.error(error);
        throw new ServiceUnavailableException(error, error.message);
      });

    // check mimetype audio/*
    if (file.mimetype.indexOf('audio/') === -1) {
      throw new UnsupportedMediaTypeException();
    }
    this.logger.debug(`file.mimetype: ${file.mimetype}`);
    await this.s3
      .upload({
        Bucket: 'abc',
        Key: `voicemail-greetings/${slugify(file.originalname, {
          lower: true,
          locale: 'fr',
        })}`,
        Body: file.buffer,
        CacheControl: 'no-cache',
        ContentType: file.mimetype,
        ACL: 'public-read',
      })
      .promise()
      .catch(error => {
        if (error.code === 'NoSuchBucket') {
          this.logger.warn("Bucket doesnt exist");
          throw new UnprocessableEntityException(error, error.message);
        }
        throw new InternalServerErrorException(error, error.message);
      });

I made the file public readable (ACL: 'public-read')

Here is the audio file file uploaded on my bucket. The file have public access permissions and I can play it correctly in browser.

In twilio console it tells me that it's an Error 11200, HTTP retrieval failure. Also, if I manually upload an other audio file in the same S3 emplacement as the file uploaded with nestjs it work perfectly fine.

Here the code to play the audio with twilio :

const url = `https://abc.s3.eu-west-3.amazonaws.com/voicemailgreetings/${proTarget.proOrganizationId}.wav`;
voiceResponse.play(url);

And this this is the XML response :

<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <Play>https://abc.s3.eu-west-3.amazonaws.com/voicemail-greetings/18.wav</Play>
    <Record playBeep="true" action="/beta/pro/call/record-end"/>
</Response>

Answer 1

Problem fix !

Actually the problem came from my flutter app that handles the audio recording to upload to the S3. Needed to specify the audio encoder

await _audioRecorder.start(path: filePath, encoder: AudioEncoder.wav);