26. The system of claim 25 , wherein the text string is generated based on metadata associated with or identifying a media asset.
26. The system of claim 25 , wherein the text string is generated based on metadata associated with or identifying a media asset. 27. The system of claim 26 , wherein the operations further comprise: synthesizing a speech segment based on the modified text string; and providing the speech segment to a user device for playback with the media asset on the user device.