title: AWS Polly integration : Possibility to merge "static MP3" with "Dynamic Text to Speech"
body: <p>We want to use AWS Polly to provide text to speech in a waiting room .</p>
  <p>The idea is to call a customer with a &quot;Number&quot; and I think of two ways to make this implementation:</p>
  <p><strong>Scenario 1:</strong>
  &quot;Customer  123, your order is ready, please proceed to the front desk&quot;</p>
  <p>We use AWS Polly to convert in speech the full sentence.</p>
  <p><strong>Scneario 2:</strong>
  we want to have a &quot;static MP3&quot; for the whole sentence except <em><strong>&quot;123&quot;</strong></em> and <em>&quot;<strong>front desk</strong>&quot;</em> as these two are going to be dynamic.
  I can imagine having an MP3 for one part of the message that &quot;never&quot; changes and get the file from Amazon AWS Polly for the dynamic part</p>
  <p>Is there a way to use AWS Polly such a way  ?</p>