linux and accesibility apps

[Janina Sajka]

Perhaps. The problem with these kinds of tests is that this isn't how we use speech synthesis. Unfortunately, it seems most developers of TTS technology are building for some use case that doesn't include our needs. I wish we could let them know this. It would help, I think, get us better performing TTS engines over time.

Saqib Shaikh writes:
> I paraphrased what I previously read on the web site.  I just visited the
> site and find that the quote I used has been removed, but a whole section on
> performance has been added.  In short, Flite is faster to start up and
> FreeTTS is faster to process text and speak it.  Here is the section from
> the site:
> 
> How does FreeTTS perform?
> 
> We compared the performance of FreeTTS with that of Flite (original C
> version) on a machine with this configuration:
> 
> * single 296MHz CPU SPARC v9 processor
> * SolarisTM 8 in 64-bit mode
> * Java 2 SDK, Standard Edition, v 1.4
> 
> We rendered the first two chapters of Alice's Adventures in Wonderland by
> Lewis Carroll (about 20 minutes of text), and the entire text of Jules
> Verne's Journey to the Center of the Earth (about 8 hours of text) using
> both Flite and FreeTTS. The results are summarized below:
> 
> Single CPU 296MHz SPARC v9 Flite FreeTTS Loading Time for 'Alice' text 0.0s
> 4.1s Processing Time for 'Alice' text 43.7s 24.1s Loading Time for 'Journey'
> text 0.0s 7.0s Processing Time for 'Journey' text 1019.2s 341.0s Time to
> first Sample (10 word sentence) 195ms 41ms
> 
> On a 2-CPU system with the following configuration:
> * Dual 360MHz CPU SPARC v9 Processor system
> * SolarisTM 8 in 64-bit mode
> * Java 2 SDK, Standard Edition, v 1.4
> 
> The results are summarized below:
> 
> Dual CPU 360MHz SPARC v9 Flite FreeTTS
> Loading Time for 'Alice' text 0.0s 2.9s
> Processing Time for 'Alice' text 35.7s 14.2s Loading Time for 'Journey' text
> 0.0s 3.8s Processing Time for 'Journey' text 842.7s 189.5s Time to first
> Sample (10 word sentence) 165ms 33ms
> 
> 
> 
> 
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-- 
	
				Janina Sajka, Director
				Technology Research and Development
				Governmental Relations Group
				American Foundation for the Blind (AFB)

Email: janina at afb.net		Phone: (202) 408-8175