PulseCast

Install a Single Board Computer with Raspbian and a SoundCard as a PulseAudio based music player.

For more information on the project search for pulsecast on https://techinfo.brainbuz.org

Requirements

This role has no external dependencies but is both limited in hardware that would work with it and to the Raspbian Debian distribution.

Role Variables

The daemon values are those that I've needed to set. These values will be set in /etc/pulse/daemon.conf

daemon_fragments
daemon_fragment_size_msec
daemon_deferred_volume_safety_margin_usec

You will need to know the soundcard name for /boot/config.txt, default is for hifiberry.

soundcard_name: my_hifi_soundcard

If you are using ufw it will open all ports to the allow_hosts list.

use_ufw: boolean

If you wish to set an acl for pulse tcp connections this will put your allow_hosts in the list.

use_pulseacl: boolean

If either use_ufw or use_pulseacl are true there must be at least one valid ip address in allow_hosts. If you are not using either this variable may be undefined.

allow_hosts:
  - ip_address1
  - ip_address2

Options to disable wife and bluetooth if they're not in use.

allow_bluetooth: boolean
allow_wifi: boolean

Crontab to restart pulseaudio every day.

Shown are the default values to restart the pulse daemon every day at 6:30 AM. Check your timezone with ls -l /etc/localtime, Raspberry Pi defaults to UK for timezone. The audio from your devices may pick up lag and drift between devices over time, the daily restart fixes this problem.

dailypulserestart: true
dailypulserestart_hour: '6'
dailypulserestart_minute: '30'

Dependencies

Example Playbook

- hosts: pi
  vars:
    soundcard_name: my_hifi_soundcard
    use_ufw: true
    use_pulseacl: false
    allow_hosts: [ '192.168.1.11', '192.168.11.1' ]
    allow_bluetooth: false
    allow_wifi: false
  roles:
    - brainbuz.pulsecast

License

GPL3