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[Emacspeak] Re: Emacspeak on Android

Tim Makarios <emacspeak.correspondence(a)freespoken.nz> writes:

Very Nice!

I suspect tweaking buffer-size will give you most bang for the buck; Are
you using Outloud or Espeak?

Once you get this tuned to your liking, I'd request you write it up as a
simple org file and post it somewhere; I'd also like to include it in
the emacspeak distribution when the write-up is ready.
> Hi,
> Thank you all for your replies.  Inspired partly by them, partly by an
> answer I received on the #termux IRC channel, and partly by my own
> stubbornness, I searched for ways to get the audio out of something like
> UserLAnd or a Termux PRoot environment.
> And I succeeded!  With auditory icons, and everything!
> The trick is to use PulseAudio to stream the audio out of UserLAnd (or
> PRoot).  In particular, I installed pulseaudio in UserLAnd's Debian
> environment and added this line to the bottom of /etc/pulse/default.pa
> there:
> load-module module-simple-protocol-tcp source=auto_null.monitor record=true
> port=54713 listen=
> (Apologies for any spurious linebreaks added by my email program; it should
> be a single line.)  Then with PulseAudio started, I connected to the stream
> from SimpleProtocolPlayer NG
> https://f-droid.org/packages/fr.jakse.raphael.simpleprotocolplayer
> and started Emacspeak in UserLAnd.  The sound is a bit choppy, but it's a
> proof of concept, at least.  I haven't yet thoroughly tested whether the
> audio output would be improved by different settings like:
> * a different buffer size in Simple Protocol Player NG,
> * a different sample rate,
> * streaming the audio to Termux instead of Simple Protocol Player NG,
> * running Emacspeak in Termux's PRoot instead of UserLAnd,
> * streaming over a Unix special file instead of TCP,
> * and so on.
> The main web pages I drew on for my understanding were:
> * https://android.stackexchange.com/a/205629
> * https://kaytat.com/blog/?page_id=301
> * https://github.com/CypherpunkArmory/UserLAnd/issues/371
> They often assume a visual desktop, but this isn't necessary; I can run
> Emacspeak in emacs-nox in UserLAnd, without any visual desktop installed.
> I did notice that it didn't fully work with Debian buster's emacspeak
> package (version 49.0) in Emacs 26.1; the output seemed to be silent for
> some utterances, perhaps triggered by auditory icons or voice locking or
> both.  But switching to Emacs 27.1 (from buster-backports) and compiling
> Emacspeak 53.0 from source in UserLAnd solved that problem.
> Now, to complete the eyes-free experience on my mobile phone, I need a
> physical keyboard I can connect to it, preferably without wires, so I don't
> tie myself up in cords.  But before investing in that, perhaps I should
> figure out whether, in the long run, Emacspeak will make me more productive
> than a visual desktop, rather than less.  At the moment, I'm finding a
> fairly steep Emacs-learning curve (mostly keybindings), but I'm still
> hopeful that it will be worth it.
> I hope this is helpful and encouraging.
> All the best,
> Tim
> <><
> On Sat, 2021-05-01 at 07:37 -0700, T.V Raman wrote:
>> Typing this up mostly for the archive.
>> 1. Speech Server: Voice changes are hard to implement using the current
>>    setup, but feasable;
>>    A. Look up Google TTS documentation, provides pitch change as the
>>       only control from memory.
>>       B. Copy plain-voices.el to android-voices.el, then follow the code
>>          and update it to generate the pitch control changes.
>>          C. Finally add the necessary clause in dtk-speak.el to load
>>             android-voices.el if synthesis engine is Android.
>>             2. Auditory Icons, Again doable, but you'd have to write
>>                some Java code in the Android speech server to play
>>                sounds, you'll likely need to package over the sound
>>                files and copy them to the Android side.
>> -- 
>> Thanks,
>> --Raman
>> ♇ Id: kg:/m/0285kf1  🦮
>> _______________________________________________
>> Emacspeak mailing list -- emacspeak(a)emacspeak.org
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♈ Id: kg:/m/0285kf1  🦮

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