Here from
the Debian Wiki on accessible installation.
5.2.4. Software Speech Synthesis
Support for software speech synthesis is available on all
installer images which
have the graphical installer, i.e. all netinst, CD and DVD
images, and the
netboot gtk variant. It can be activated by selecting it in
the
boot menu by typing s
Enter.
The textual version
of the installer will then be automatically selected, and
support for software
speech synthesis will be automatically installed on the
target system.
If several sound cards are detected, you will be prompted to
press Enter
when you hear speech from the desired sound card.
The first question (language) is spoken in english, and the
remainder
of installation is spoken in the selected language (if
available in
espeak).
The default speech rate is quite slow. To make it faster,
press
CapsLock+6.
To make it slower, press
CapsLock+5.
The default volume should be medium. To make it louder,
press
CapsLock+2.
To make it quieter, press
CapsLock+1.
To get more details on the browsing shortcuts, see the
Speakup guide.
To just accept the default answer for a question, simply
press
Enter at
the prompt.
To provide an empty answer for a question, type ! at the
prompt.
To get back to the previous question, type < at the
prompt.
Here is the image I recommend. I'm not a free software
purist, I just want a system that works.
To get the install CD:
wget https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/current/amd64/iso-cd/firmware-10.3.0-amd64-netinst.iso
Remember to press s as described above and then to follow
the instructions to press RETURN when you hear the sound on
your computer.
After installing, get the multimedia gpg key.
wget http://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
&& dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
I include an updated /etc/apt/sources.list file, save the
one you have using root to move to sources.list to
sources.list.orig and then saving this one as sources.list.
File attached.
Update and upgrade.
Regards,
David