[BRLTTY] Feature request

[Mario Lang]

Lars Bjørndal <lars at lamasti.net> writes:

> On Mon, Dec 14, 2015 at 02:54:36AM -0500, Dave Mielke wrote:
>
> [...]
>
>> Brltty plays what we call alert tunes for events the user might care about, 
>> e.g. trying to navigate beyond the edge of the screen, wrapping to the 
>> next/previous line, skipping over blank lines, etc. The default is to use the 
>> PC speaker to play these tunes. Its tune device can, however, be changed from 
>> within brltty's preferences menu to other things, e.g. to play PCM audio via 
>> the sound card.
>> 
>> Additionally, the about-to-be released version (5.3) of brltty contains a new 
>> feature that helps overcome a related problem. Wthout a physical PC speaker, or 
>> without the pcspkr kernel module, the regular console bell can't be heard 
>> either. Since a blind user can't see a visual bell, being able to hear the 
>> console bell is important to many. Brltty has a new setting called Console Bell 
>> Alert. If this setting is enabled then brltty listens for Linux console bell 
>> events, and plays them via its current tune device. So, with brltty running and 
>> this new setting enabled, and with the tune device set to PCM, the old familiar 
>> console bell can again be heard via the speakers, headset, or whatever the user 
>> is using.
>
> Many braille displays has a speaker built in. Could it be possible to
> utilize the speaker to play the sould from the console/BRLTTY? E.g. use the
> braille display as the sound device?

Most braille displays do not offer any way for the host to trigger
internal sounds on the braille display.  So this is a dead end unfortunately.

There is an upcoming trend to ship displays with a bluetooth based sound
device included.  These will make it possible to play PCM sounds
directly from the host.  I guess most users will want to use this for
sending the speech synthesis output to their braille display.  At least
that is what it is ment for.

-- 
CYa,
  ⡍⠁⠗⠊⠕