Using VoicePlayer.Speak directive for a progressive response on python 2.75, ask_sdk_core 1.5.0 and ask_sdk_model 1.4.0.
We send the request as usual to api_endpoint+'/v1/directives', using Beared Authorization + Api Access token, etc. and It works with a simple text message (as long as we don't enclosed it in <speak> </speak> tags). It plays the message in a lower volume level, but it works.
Using <speak> tags (with text or audio) the request always returns a 400 error.
If we don't use the speak tags, it returns a valid 204 status code, playing the text and ignoring the <audio src> tag.
We tried using audio files of less than 30 sec. stored in S3 and also some sound bank examples with the same frustrating result, it ignore the audio tags or return an error using the <speak> tags.
Other SSML tags like <say-as interpret-as='interjection'>fu</say-as>" works perfectly.
It seams the problem is focused only on the audio tag. Any workaround?