While testing espeak with speech-dispatcher, it was discovered that the default volume for software speech using espeak and speech-dispatcher is very low. This has been narrowed down to the way speech-dispatcher sets the volume, so this bug is to track working on this issue.
This has been fixed by speech-dispatcher-0.6.2-r1.
I am re-opening this bug because I received more information from upstream about how the volume and rate settings work. We should set the volume to maximum and allow the user to modify it in /etc/speech-dispatcher/speechd.conf. The current fix does not do this.
This is fixed this time. :-) We set the volume to the maximum level by default, and the default can be changed in /etc/speech-dispatcher/speechd.conf.