<amazon:effect phonation="soft">
This tag is currently supported only by the standard TTS format.
To specify that input text should be spoken in a softer-than-normal voice, use the <amazon:effect phonation="soft"> tag.
This uses the syntax:
<amazon:effect phonation="soft">text</amazon:effect>For example, you might use this tag with the Matthew voice as follows:
<speak> This is Matthew speaking in my normal voice. <amazon:effect phonation="soft">This is Matthew speaking in my softer voice.</amazon:effect> </speak>
