RPITALK-EMULATOR(1)

📦 version 1.3, in ubuntu stonking

💖 rpitalk-emulator — the manual, but make it fashion 💖

okay so bestie. this is a User Commands page for section 1 of the manual, and the star of the show is rpitalk-emulator. sit down, hydrate, and let me tell you about the software that turns a Raspberry Pi into a whole DECtalk-compatible hardware speech synthesizer. it's giving legend behavior, no cap. 🎀

✨ NAME ✨

rpitalk-emulator — Raspberry Pi hardware speech synthesizer emulator 👑

🌸 SYNOPSIS 🌸

rpitalk-emulator [options]

🦋 DESCRIPTION 🦋

so basically, rpitalk-emulator provides software for turning a Raspberry Pi into a DECtalk-compatible hardware speech synthesizer. that's the whole vibe. 💅

it emulates legacy hardware speech synthesizers, and it uses Speech Dispatcher as a backend. which means? which means older software that was written for DECtalk or LiteTalk devices can still produce speech, but through modern text-to-speech engines. glow-up of the century honestly. ✨

the emulator listens on a serial device provided by the Raspberry Pi USB OTG (gadget) interface, and it processes incoming synth-style commands to generate speech output. it's just out here, listening, serving, synthesizing. main character energy fr. 🔥

at startup, rpitalk-emulator reads a system configuration file to determine default settings. and any command-line options override the configuration file. the command line always wins, periodt. 💖

💜 OPTIONS 💜

  • -p, --port device — the serial port device name to use (for example, ttyGS0 or ttyUSB0). the default is ttyGS0, which is typically created by the USB OTG (gadget) serial driver. 🫶
  • -e, --emulate dectlk|ltlk — pick which hardware synthesizer to emulate. choose your fighter:
    • dectlk — emulate a DECtalk-compatible device. this is the default, she's the people's princess. 👑
    • ltlk — emulate a LiteTalk-compatible device. 🌈
  • -d, --debug level — set the debug output level. a value of 0 disables debugging. the default is 0. so if you want the tea, you gotta ask for it. 🍓
  • -t, --test speech|conn — run a built-in test instead of starting the emulator. cute lil wellness check, honestly:
    • speech — perform a speech synthesis test using the selected emulation type. 🗣️
    • conn — perform a serial connection test on the selected serial device. 🔌

🎀 CONFIGURATION FILE 🎀

the file /etc/rpitalk/emulator.conf is read at startup if it exists. if it doesn't exist? she simply doesn't read it. iconic.

it must contain a section named [RPITalk], and that section may define the following keys:

  • port — serial port device name to use (for example, ttyGS0).
  • emulate — which synthesizer to emulate: dectlk or ltlk.
  • debug — debug level (integer, 0 disables debugging).
bestie, remember: command-line options override values from the configuration file. always. 💅

⭐ EXAMPLES ⭐

start the emulator using defaults:

rpitalk-emulator

use a different serial device:

rpitalk-emulator --port ttyUSB0

emulate a LiteTalk device:

rpitalk-emulator --emulate ltlk

run the speech test:

rpitalk-emulator --test speech

enable debugging output:

rpitalk-emulator --debug 1

🧚 FILES 🧚

  • /dev/ttyGS0 — default USB OTG gadget serial device (accessed internally when port is set to ttyGS0). she lives here. 🏠
  • /etc/rpitalk/emulator.conf — system-wide configuration file.

💀 SEE ALSO 💀

speech-dispatcher(1), espeak-ng(1)

go read those too, i'm literally begging you. iykyk. 🙈

🌟 AUTHOR 🌟

John G Heim <jheim@math.wisc.edu> — shoutout to the author, we love a legend. 🫶

Copyright © 2026 John G Heim.

This program is free software; you may redistribute it and/or modify it under the terms of the GNU General Public License version 3 or later.

and that's the whole page, bestie!! 🎉 written by rpitalk, dated February 2026, and honestly? ate. slay. go make your Pi talk. 💅✨🦋🌸💜

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