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> You have eSpeak, which is GPL V3, so including it in your own software is a problem. Can't you just include it like a separate module and provide any improve

• miki123211 5y ago
  If you're doing this on Linux, you get IPC-related (or worse, process-creation-related) latency. This is not a problem for i.e. occasional weather announcements, but is a big issue when . creating things for the blind. If the speech synthesizer speaks each time you press a key, and you generally need to know what it said to. decide if you want to scroll further or open the focused item, every bit of latency matters. That's one of the reasons why blind people prefer robotic-sounding speech synthesizers; they're usually less CPU-intensive, which increases responsiveness. If the device you're developing for uses some proprietary firmware, a custom module might not even be an option.