adding Pi KittenTTS demo code

Raspberry_Pi_KittenTTS/code.py

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+# SPDX-FileCopyrightText: 2025 Tim Cocks for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+import json
+import time
+import glob
+import os
+import tomllib
+from datetime import datetime
+import board
+from digitalio import DigitalInOut, Direction, Pull
+from adafruit_debouncer import Debouncer
+
+
+from kittentts import KittenTTS
+import soundfile as sf
+
+
+print("initializing...")
+
+with open("weather_narrator.toml", "rb") as f:
+    config = tomllib.load(f)
+voice = config.get("voice", None)
+sound_device = config.get("sound_device", None)
+
+day_of_month_words = [
+    "1st",
+    "2nd",
+    "3rd",
+    "4th",
+    "5th",
+    "6th",
+    "7th",
+    "8th",
+    "9th",
+    "10th",
+    "11th",
+    "12th",
+    "13th",
+    "14th",
+    "15th",
+    "16th",
+    "17th",
+    "18th",
+    "19th",
+    "20th",
+    "21st",
+    "22nd",
+    "23rd",
+    "24th",
+    "25th",
+    "26th",
+    "27th",
+    "28th",
+    "29th",
+    "30th",
+    "31st",
+]
+
+button = DigitalInOut(board.D17)
+button.direction = Direction.INPUT
+button.pull = Pull.UP
+
+debounced_btn = Debouncer(button)
+
+with open("forecast.json", "r") as f:
+    forecast = json.load(f)
+
+m = KittenTTS("KittenML/kitten-tts-nano-0.1")
+
+
+def generate_date_time_audio(date_obj):
+    replacements = {
+        "00": "oh clock",
+        "01": "oh 1",
+        "02": "oh 2",
+        "03": "oh 3",
+        "04": "oh 4",
+        "05": "oh 5",
+        "06": "oh 6",
+        "07": "oh 7",
+        "08": "oh 8",
+        "09": "oh 9",
+    }
+
+    now_date_obj = datetime.now()
+    try:
+        os.remove("date.wav")
+    except FileNotFoundError:
+        pass
+    month = date_obj.strftime("%B")
+    day_word = day_of_month_words[date_obj.day - 1]
+    date_script = f"{month} {day_word}, {date_obj.year}."
+
+    time_script = now_date_obj.strftime("%-I %M %p")
+    for key, val in replacements.items():
+        time_script = time_script.replace(key, val)
+
+    date_script += f" The time is: {time_script}."
+    audio = m.generate(date_script, voice=voice)
+    sf.write("date.wav", audio, 24000)
+
+
+print("Press button to hear time and weather...")
+while True:
+    debounced_btn.update()
+    if debounced_btn.fell:
+        print("just pressed")
+
+        dt_format = "%Y-%m-%dT%H:%M:%S%z"
+        forecast_date_obj = datetime.strptime(
+            forecast["properties"]["periods"][0]["startTime"], dt_format
+        )
+
+        generate_date_time_audio(forecast_date_obj)
+
+        files_to_read = glob.glob("sound_files/*.wav")
+        sorted_files_asc = sorted(files_to_read, key=os.path.getmtime)
+        sorted_files_asc.insert(0, "date.wav")
+        for file in sorted_files_asc:
+            if sound_device is None:
+                os.system(f"aplay {file}")
+            else:
+                os.system(f"aplay -D {sound_device} {file}")
+
+    time.sleep(0.01)

Raspberry_Pi_KittenTTS/generate_forecast.py

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+# SPDX-FileCopyrightText: 2025 Tim Cocks for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+import json
+import os
+import tomllib
+import shutil
+import requests
+from kittentts import KittenTTS
+import soundfile as sf
+
+
+with open("weather_narrator.toml", "rb") as f:
+    config = tomllib.load(f)
+
+m = KittenTTS("KittenML/kitten-tts-nano-0.1")
+
+replacements = {"mph": "miles per hour"}
+
+# latlng_lookup_url = "https://api.weather.gov/points/{lat},{lon}"
+
+voice = config.get("voice", None)
+location_points = config.get("location_points", "36,33")
+
+weather_data = requests.get(
+    f"https://api.weather.gov/gridpoints/TOP/{location_points}/forecast", timeout=20
+).json()
+print("Got weather. Building script...")
+
+with open("forecast.json", "w") as f:
+    json.dump(weather_data, f)
+
+forecast_length = config.get("forecast_length", None)
+
+shutil.rmtree("sound_files", ignore_errors=True)
+os.mkdir("sound_files")
+
+for i, period in enumerate(weather_data["properties"]["periods"]):
+    if forecast_length is None or i < forecast_length:
+        filename = period["name"].replace(" ", "_")
+        outstr = ""
+        if i == 0:
+            outstr += f'Current Temperature is {period["temperature"]} degrees. '
+        outstr += f'{period["name"]} {period["detailedForecast"]}'
+
+        for key, replacement in replacements.items():
+            outstr = outstr.replace(key, replacement)
+        print(f"script: {outstr}")
+        print("Generating audio...")
+        audio = m.generate(outstr, voice=voice)
+        output_file = f"sound_files/{filename}.wav"
+        print(f"Writing {output_file}")
+        sf.write(output_file, audio, 24000)
+print("Audio generation complete")

Raspberry_Pi_KittenTTS/weather_narrator.toml

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+# SPDX-FileCopyrightText: 2025 Tim Cocks for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+voice = "expr-voice-3-f"
+location_points = "36,33"
+forecast_length = 3
+#sound_device = "plughw:3,0"
+available_voices = [
+    'expr-voice-2-m',
+    'expr-voice-2-f',
+    'expr-voice-3-m',
+    'expr-voice-3-f',
+    'expr-voice-4-m',
+    'expr-voice-4-f',
+    'expr-voice-5-m',
+    'expr-voice-5-f' ]