Sudo required for TTS and sound

[Bob-Harper]

After extensive troubleshooting, i found a way to enable sound output through the Robot HAT's integrated speaker without requiring sudo:

1. Ensure User is in the audio Group

sudo usermod -aG audio $USER

Log out and back in to apply the group changes.

2. Grant Permissions for /dev/snd
   Create or edit the Udev rules file:

sudo nano /etc/udev/rules.d/99-robot-hat-sound.rules

Add the following line:

KERNEL=="snd*", GROUP="audio", MODE="0777"

Reload Udev rules and trigger changes:

    sudo udevadm control --reload-rules
    sudo udevadm trigger

3. Add a Polkit Rule for Audio Access
   sudo nano /etc/polkit-1/rules.d/99-robot-hat-sound.rules
   Add the following:

    polkit.addRule(function(action, subject) {
        if (subject.isInGroup("audio") && action.id.indexOf("org.freedesktop.udisks2.") == 0) {
            return polkit.Result.YES;
        }
    });

4. Test Sound Output
   Reboot the system:
   sudo reboot

Run your sound test script without sudo. For example:

python your_sound_test_script.py