I also found a problem with the espeak (portaudio) backend with pulse audio in 9.04 "speaking too fast", although since I did not try it on prior releases I did not know if this was a new problem or not. Since I found that audio playback was accelerated to the point where it was unintelligible on my particular machine, I do not know if it was also clipping portions of the audio. On the other hand, the festival backend did work correctly for me on 9.04 and with reasonable clarity. I am aware that festival has less languages available than espeak.
The symptom you describe is in launchpad as #344534. The garbled audio is discussed in several places, particularly in #354522, where someone experimented with bypassing portaudio, which is the backend espeak uses in Ubuntu, and there are I gathered some issues in the current release of portaudio over the older release of portaudio found in Intrepid. Fabrizio Marini wrote: > > --- Messaggio originale --- > Da: "Fabrizio Marini" <[email protected]> > A: [email protected] > Data: 17/05/2009 21.22.17 > Oggetto: Speech problem upgrading from Intrepid to Jaunty. > --------------------------- > > > --- Messaggio originale --- > Da: "Fabrizio Marini" <[email protected]> > A: [email protected]. > Data: 16/05/2009 12.58.41 > Oggetto: Sound problem upgrading from Intrepid to Jaunty. > --------------------------- > Hi everybody! > I'm a blind user of Ubuntu with Orca. > After upgrading via apt-get from Ubuntu 8.10 to 9.04, I noticed a strange > problem, and i'm not able to understand which component of my system causes > it. > Using Orca with the Espeak software syntesizer and PulseAudio as my sound > system, Espeak does not says the last part of every message sent to it by > orca. For example, when I reach a button using the tab key, it says the > name of the button but don't say the word "button". Sometimes it also > doesn't say the first part of the messages. > I tried to search the solution using Google, but I founded only solutions > for people who installed Ubuntu using the installation cd and had other > problem, such as espeak speaking too fast. > > Could anybody help me? Last but not list, is this the right place to ask > this question? > > Thank you so much and have a nice day. > > Fabrizio. > --- Fine messaggio --- > --- Fine messaggio --- >
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