s3 uploads audio file but it doesn't play. How to upload audio stream to s3?

Question

I'm trying to upload my Amazon Polly speech files to s3. They upload successfully, so no errors that I can work with but they don't play.

I have an array of objects which include lyrics which are strings. I loop them and create a mp3 file then upload to s3.

---

Data structure:

Array
(
    [0] => stdClass Object
        (
            [lyrics] => sample lyrics

        )

    [1] => stdClass Object
        (
            [lyrics] => sample lyrics

        )

    [2] => stdClass Object
        (
            [lyrics] => sample lyrics

        )

)

.
Polly and S3 Function:

foreach($final as $key=>$f){

    $pollySpeech = $polly->synthesizeSpeech([
        'OutputFormat' => 'mp3',
        'Text' => $f->lyrics,
        'TextType' => 'text',
        'VoiceId' => 'Salli',
    ]);

    print_r($pollySpeech);

    try {
        $s3->putObject([
                'Bucket' => 'testbucket'
                'Key'    => $key.'.mp3',
                'Body'   => $pollySpeech,
                'ContentType' => 'audio/mpeg',
            'ACL'    => 'public-read',
        ]);
    } catch (Aws\S3\Exception\S3Exception $e) {
        echo "There was an error uploading the file.\n";
    }

}

Polly response:

Aws\Result Object
(
    [data:Aws\Result:private] => Array
        (
            [AudioStream] => GuzzleHttp\Psr7\Stream Object
                (
                    [stream:GuzzleHttp\Psr7\Stream:private] => Resource id #264
                    [size:GuzzleHttp\Psr7\Stream:private] => 
                    [seekable:GuzzleHttp\Psr7\Stream:private] => 1
                    [readable:GuzzleHttp\Psr7\Stream:private] => 1
                    [writable:GuzzleHttp\Psr7\Stream:private] => 1
                    [uri:GuzzleHttp\Psr7\Stream:private] => php://temp
                    [customMetadata:GuzzleHttp\Psr7\Stream:private] => Array
                        (
                        )

                )

            [ContentType] => audio/mpeg
            [RequestCharacters] => 90
            [@metadata] => Array
                (
                    [statusCode] => 200
                    [effectiveUri] => https://polly.eu-west-1.amazonaws.com/v1/speech
                    [headers] => Array
                        (
                            [x-amzn-requestid] => fc1a7ebf-4f8c-11e7-a1a3-555e1409e93f
                            [x-amzn-requestcharacters] => 90
                            [content-type] => audio/mpeg
                            [transfer-encoding] => chunked
                            [date] => Mon, 12 Jun 2017 16:34:20 GMT
                        )

                    [transferStats] => Array
                        (
                            [http] => Array
                                (
                                    [0] => Array
                                        (
                                        )

                                )

                        )

                )

        )

)

Answer 1

$pollySpeech->get('AudioStream')->getContents();

所以好像我试图将整个对象上传到S3。上面的一行让我可以正确上传音频流。

foreach($final as $key=>$f){

    $pollySpeech = $polly->synthesizeSpeech([
        'OutputFormat' => 'mp3',
        'Text' => $f->lyrics,
        'TextType' => 'text',
        'VoiceId' => 'Salli',
    ]);

    print_r($pollySpeech);

    try {
        $s3->putObject([
                'Bucket' => 'testbucket'
                'Key'    => $key.'.mp3',
                'Body'   =>  $pollySpeech->get('AudioStream')->getContents(),
                'ContentType' => 'audio/mpeg',
            'ACL'    => 'public-read',
        ]);
    } catch (Aws\S3\Exception\S3Exception $e) {
        echo "There was an error uploading the file.\n";
    }

}

Answer 2

另一种方法是

$text = "Hi my name is Bob";
$format = 'mp3'; //json|mp3|ogg_vorbis|pcm
$voice = 'Joanna';
$result = $PollyClient->synthesizeSpeech([
'Text' => $text,
'OutputFormat' => $format,

'VoiceId' => $voice,
]);
$resultData = $result->get('AudioStream')->getContents();
#Save MP3 to S3
$s3bucket = 'bucket-name';
$filename = "message-".$id.'.mp3';
$result_s3 = $S3Client->putObject([
'Key'         => $filename,
'ACL'         => 'public-read',
'Body'        => $resultData,
'Bucket'      => $s3bucket,
'ContentType' => 'audio/mpeg',
'SampleRate'  => '8000'
]);
return $result_s3['ObjectURL'];