Audio tag is not working in ssml

[mduzgun]

I send to ssml my Alexa device. Text can be converted speech, whispered effect is working but audio url does not work.

    let serialOrName="G2A0WK048432057N";
    let command="ssml";
    let value='<speak><audio src="https://s3-us-west-1.amazonaws.com/sayspring-prod/media/celtic-open-chime.mp3"/> Welcome to Car-Fu.<amazon:effect name="whispered">I am not a real human.</amazon:effect>.</speak>';
    alexa.sendSequenceCommand(serialOrName, command, value, function(err, res) {
        console.log ("error: "+err)
        console.log ("result: "+res)
        if (!err && res) {
            console.log ("alexa.sendSequenceCommand is successfull");
        }

    });

logs:

deviceSerial :87c51d3bcffe48019bf9c55fb4928df6
deviceSerial :G2A0WK048432057N
deviceSerial :DB35389691CA4C4AA1037BAFEBFE9E1A
Alexa-Remote: No authentication check needed (time elapsed 6706)
Alexa-Remote: Sending Request with {"host":"pitangui.amazon.com","path":"/api/behaviors/preview","method":"POST","timeout":10000,"headers":{}}and data={"behaviorId":"PREVIEW","sequenceJson":"{"@type":"com.amazon.alexa.behaviors.model.Sequence","startNode":{"@type":"com.amazon.alexa.behaviors.model.OpaquePayloadOperationNode","operationPayload":{"customerId":"A2Q8GQKLT884AQ","expireAfter":"PT5S","content":[{"locale":"en-US","display":{"title":"ioBroker","body":"<audio src=\"s3-us-west-1.amazonaws.com/sayspring-prod/media/celtic-open-chime.mp3\"/> Welcome to Car-Fu.<amazon:effect name=\"whispered\">I am not a real human.</amazon:effect>."},"speak":{"type":"ssml","value":"<audio src=\"s3-us-west-1.amazonaws.com/sayspring-prod/media/celtic-open-chime.mp3\"/> Welcome to Car-Fu.<amazon:effect name=\"whispered\">I am not a real human.</amazon:effect>."}}],"target":{"customerId":"A2Q8GQKLT884AQ","devices":[{"deviceSerialNumber":"G2A0WK048432057N","deviceTypeId":"A18O6U1UQFJ0XK"}]}},"type":"AlexaAnnouncement"}}","status":"ENABLED"}

[Ingo Fischer]

yes, this is known. Amazon seems to limit here :-( Noone found a way to play audio using SSML so far

[mduzgun]

Is there another way for play audio on Alexa pyhsical device?

[Ingo Fischer]

nothing known