UAP "dog whistle" Audio Generator Setup Steps

This guide will walk you through setting up a sophisticated multi-layer audio signal generator that runs as a service on your Raspberry Pi and outputs sound to a Bluetooth speaker. The system includes three main components: an audio generator script, a player service, and a systemd configuration to automatically run at startup.

System Overview

The setup consists of:

1. UAP3 Generator Script (uap3-generator.py): Creates a WAV file with six distinct audio layers
2. UAP3 Player Service (uap3-player.py): Monitors for the WAV file and a connected Bluetooth speaker, then plays the audio automatically
3. Systemd Service (uap3-player.service): Ensures the player runs at startup and continues running

Prerequisites

Before starting, you'll need:

• A Raspberry Pi running Raspberry Pi OS Bookworm or newer
• A Bluetooth speaker paired with your Raspberry Pi
• Python 3 installed

You'll also need to install some Python libraries:

bash

sudo apt-get update
sudo apt-get install -y python3-pip libportaudio2 libportaudio-dev portaudio19-dev
sudo pip3 install numpy scipy sounddevice

Step 1: Download the Required Files

1. Download the three required files:
   • uap3-generator.py - The audio generator script
   • uap3-player.py - The player service script
   • uap3-player.service - The systemd service file

Move the service file to the systemd directory:bash

sudo mv uap3-player.service /etc/systemd/system/

Place the Python scripts in your home directory:bash

# Move the Python scripts to the home directory
mv uap3-generator.py /home/pi/
mv uap3-player.py /home/pi/

Step 2: Make the Scripts Executable

bash

chmod +x /home/pi/uap3-generator.py
chmod +x /home/pi/uap3-player.py

Step 3: Generate the Audio File

Run the audio generator script to create the WAV file (this may take some time on a Raspberry Pi):

bash

python3 /home/pi/uap3-generator.py

This will generate a 1-hour WAV file (uap3_output.wav) in your home directory.

Step 4: Setup and Start the Service

View the logs to ensure everything is working:bash

cat /home/pi/uap3-player.log

Check that the service is running:bash

sudo systemctl status uap3-player.service

Start the service immediately:bash

sudo systemctl start uap3-player.service

Enable the service to start automatically on boot:bash

sudo systemctl enable uap3-player.service

Reload the systemd daemon to recognize the new service:bash

sudo systemctl daemon-reload

Bluetooth Setup

Before the player service will work, you need to pair and connect your Bluetooth speaker:

Exit Bluetooth control:

exit

Trust your speaker so it automatically connects:

trust XX:XX:XX:XX:XX:XX

Connect to your speaker:

connect XX:XX:XX:XX:XX:XX

Pair with your speaker (replace XX:XX:XX:XX:XXwith your speaker's MAC address):

pair XX:XX:XX:XX:XX:XX

Scan for devices:

scan on

Start Bluetooth control:bash

bluetoothctl

Troubleshooting

If you encounter issues:

Verify Bluetooth connection:bash

bluetoothctl info

Test audio playback manually:bash

aplay /home/pi/uap3_output.wav

Check the player log:bash

cat /home/pi/uap3-player.log

View detailed logs:bash

sudo journalctl -u uap3-player.service -n 50

Check service status:bash

sudo systemctl status uap3-player.service

Understanding the Audio Layers

The generated audio contains six distinct layers:

1. Schumann Resonance (7.83 Hz): AM modulated over a 100 Hz carrier frequency
2. Harmonic Tone (528 Hz): With added harmonics for richness
3. High-Frequency Pings (17 kHz): Occurring every 5 seconds
4. Frequency Chirps (2.5 kHz): Sweeping upward every 10 seconds
5. Ambient Pad (432 Hz): A smooth masking layer with multiple harmonics
6. Breathing White Noise: Shaped to simulate a breathing rhythm

Customizing the Audio

To customize the audio parameters, you can modify the frequency values, amplitudes, or other parameters in the uap3-generator.py script. After making changes, regenerate the WAV file, and the player service will automatically use the new file.