Converting text to mp3

Linux for blind general discussion blinux-list at
Thu Jan 27 01:44:17 UTC 2022

Decktalk hardware is analog. software Speech is not.

Incorrect. DECTalk hardware takes text, converts it to digital speech 
signals via software programmed into a chip soldered onto the printed 
circuit board, and that digital speech is translated into the analog 
sound you hear using another chip on the same board. This is exactly 
like what your sound card does. The second-stage chip is called a DAC, 
or digital to analog converter. In the case of your hardware speech 
synthesizer, the analog wave form is derived from an 8KHz, or possibly 
11.025KHZ, mono digital signal and is piped out through a small speaker 
connected to the output of the DAC. This is a rather simplified 
explanation of the process, but it will suffice here.

recently I was helping someone try to find a dectalk USB, and one of my 
associates builds a sort of USB box that uses the most current dectalk 
software speech in modules form.
what they told me was that the dettalk 5, which is this software edition 
sounds nothing like hardware dectalk, and is quite difficult to understand.

Right. It's 4.6 that sounds exactly like the hardware and produces .wav 
files. I've heard 5 once or twice, and they really messed it up bad. 
This says nothing of the quality of software speech, but rather speaks 
to either the incompetence of the developers the company allowed to 
touch their code or the incompetence of the company itself, who felt 
like if they just made it different, it would somehow be better.

If no one bothers to write graphical options for hardware speech, not 
because it cannot be done, but because they choose the free stuff 
instead, that says allot about Linux creativity speaking personally.

No, it says nothing of Linux creativity and everything of the 
prohibitive cost of the hardware. It makes no sense at all for a 
complete computer on a single board to cost $35, but for a speech 
synthesizer to cost $500 or more, especially since it has less hardware 
in it than an mp3 player, and that hardware is far older as well. This 
is probably why most of us don't even bother with dedicated hardware 
speech synthesizers, especially since more can be done in software on 
the more powerful hardware that costs far less. Time is better spent 
developing for general-purpose hardware and innovating on the software 
side than the money that can be made in other ways that would make it 
possible to purchase the antiquated hardware that costs too much. This 
may also explain why few if any dedicated hardware speech synthesizers 
are even made now.

And all of this says absolutely nothing that will help the thread 
starter with his original question, how to convert text via software to 
an mp3 file. I answered that question to the best of my ability based on 
what I found, although I don't know what is causing some people to see 
errors instead of hearing speech. The solution to that problem is still 
escaping me unfortunately.


More information about the Blinux-list mailing list