Mycroft-Android VS TTS

There is.. sort of. This is their official companion app, but you have to build it yourself in Android Studio. There is some trouble with building recent versions, though, and the one I have is getting pretty old. It's never been given much attention, so I wouldn't hold my breath.

The open source build of AAOS doesn't come with a built in voice assistant or speech engine, you have to ask Amazon or Google nicely (and probably have plans to build millions before they'll bother). * It might be possible to build a free one out of open stuff like Mycroft (there is an Android companion app here but it requires running the core service somewhere else and is still using Google APIs which don't work by default on automotive--so, some work to do to port the core service to Android and build in the STT and TTS)

just use MyCroftAi - they also integrated Mozilla TTS: https://github.com/MycroftAI/Mycroft-Android https://mycroft.ai/

After quite a bit of searching for alternative digital assistants on Android, there doesn't seem to be much choice. The only two projects I see working on this are Dicio and Mycroft-Android

The closest FOSS thing is Mycroft, but it's still in development. The Android version hasn't been updated since 2020 Jul 15th, but the Core is regularly updated.

The codebase is very stale, but it is all there is, unless you want to compile yourself - I don't think that it compiles out if the box though, based on issue 90.

There is a community-driven Mycroft android app: https://github.com/MycroftAI/Mycroft-Android

Fast or good, choose one

Mozilla's TTS is a python package installable with pip and uses cpu or gpu resources to render a choice of voices, they mostly sound natural and this is the good. https://github.com/mozilla/TTS

Mycroft's mimic3 is the default voice renderer for the Mycroft project that runs on pi hardware and sounds ok-ish, that is the fast. https://github.com/MycroftAI/mimic3

There are many others but these are the two I use according to if it needs to run on limited hardware or if the cycles fall freely from the sky.

Coqui-ai was a commercial continuation of Mozilla TTS and STT (https://github.com/mozilla/TTS).

At the time (2018-ish), it was really impressive for on-device voice synthesis (with a quality approaching the Google and Azure cloud-based voice synthesis options) and open source, so a lot of people in the FOSS community were hoping it could be used for a privacy-respecting home assistant, Linux speech synthesis that doesn't suck, etc.

After Mozilla abandoned the project, Coqui continued development and had some really impressive one-shot voice cloning, but pivoted to marketing speech synthesis for game developers. They were probably having trouble monetizing it, and it doesn't surprise me that they shut down.

An equivalent project that's still in active development and doing really well is Piper TTS (https://github.com/rhasspy/piper).

An RSS reader that integrates TTS (or TTS)

My solution would be to use a speech synthesis library, maybe eSpeak or Festival, just for ease of use; I think they each provide a library that you could use from C or C++ easily. This one from Mozilla is a more modern system with better-quality output, but it looks like it's set up to run through Python, and I haven't looked at it closely enough to see how much work it would be to get it working for you.

There is a lot of TTS and SST development going on (https://github.com/mozilla/TTS; https://github.com/mozilla/DeepSpeech; https://github.com/common-voice/common-voice). That is the only way they work: Contributions from the wild.

unfortunately not yet. I need to expand the library of languages and voices. looking around, it seems only Coqui had some traction re Brazilian Portuguese: https://github.com/mozilla/TTS/issues/160. If you foresee wide adoption of the tech for this locale, hit me up with DM

I haven't used it, but there's also mozilla/TTS.

Mozilla TTS

Instead, just use Firefox's open-source TTS model: https://github.com/mozilla/TTS