alan@alan-laptop:~$ pulseaudio -k
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
I: caps.c: Dropping root privileges.
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
alan@alan-laptop:~$ pulseaudio
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
I: caps.c: Dropping root privileges.
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
E: alsa-util.c: Error opening PCM device hw:0: No such file or directory
E: module.c: Failed to load  module "module-alsa-sink" (argument: "device_id=0 sink_name=alsa_output.pci_8086_266e_sound_card_0_alsa_playback_0 tsched=1"): initialization failed.
E: alsa-util.c: Error opening PCM device hw:0: No such file or directory
E: module.c: Failed to load  module "module-alsa-source" (argument: "device_id=0 source_name=alsa_input.pci_8086_266e_sound_card_0_alsa_capture_0 tsched=1"): initialization failed.