Raspberry Pi 3 A2DP Bluetooth Audio Receiver (Raspbian Jessie Lite)

bluetooth-audio.sh

#!/usr/bin/env sh

NAME="Fiat 500 L"


# Set Bluetooth Device Name
echo "PRETTY_HOSTNAME=\"${NAME}\"" | sudo tee /etc/machine-info

# Allow 'pi' user to change bluetooth settings.
sudo usermod -a -G lp pi

# Change Bluetooth Device Class
sudo sed -i -E 's/#?(Class = 0x)[0-F]{6}/\120041C/' /etc/bluetooth/main.conf

# Make Bluetooth Discoverable on Startup
if ! grep -q 'piscan' /etc/rc.local; then
  sudo sed -i 's/^\s*exit 0\s*$/hciconfig hci0 piscan\n\n&/gm' /etc/rc.local
fi

# Upgrade all installed packages.
sudo apt-get update
sudo apt-get -y upgrade

# Install PulseAudio.
sudo apt-get -y install pulseaudio
sudo apt-get -y install pulseaudio-module-bluetooth

if ! grep -q 'exit-idle-time = -1' /etc/pulse/daemon.conf; then
  sudo sed -i 's/; exit-idle-time = 20.*/&\nexit-idle-time = -1/' /etc/pulse/daemon.conf
fi

if ! grep -q 'resample-method = trivial' /etc/pulse/daemon.conf; then
  sudo sed -i 's/; resample-method = speex-float-1.*/&\nresample-method = trivial/' /etc/pulse/daemon.conf
fi

# Load PulseAudio on startup.
if ! grep -q 'pulseaudio -D' /etc/rc.local; then
  sudo sed -i 's/^\s*exit 0\s*$/pulseaudio -D\n\n&/gm' /etc/rc.local
fi

# Set Volume
amixer -q set Master 100%
pactl set-sink-volume 0 100%


sudo tee /etc/shairport-sync.conf <<EOF
// General Settings
general = {
  name = "${NAME}";
  volume_range_db = 40;
};
EOF