Hi, I am on Gentoo Linux system. I am trying to set up my soundcard so I can listen sound from multiple application at once. aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server sysdefault:CARD=PCH HDA Intel PCH, ALC269VB Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog Front speakers surround21:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC269VB Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers hdmi:CARD=PCH,DEV=0 HDA Intel PCH, HDMI 0 HDMI Audio Output aplay --list-devices **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 I am running always Firefox web browser which uses pulseaudio: "Since version 52, Firefox has made PulseAudio a hard requirement and dropped support for direct output to ALSA. To enable sound in these versions of Firefox enable the pulseaudio USE flag." So when eg. I try to run this: aplay -D hw:0,0 test.wav I get this: aplay: main:786: audio open error: Device or resource busy How to solve this problem? In this case what should I put into ~/.asoundrc to can listen sound from multiple application at once? -- Best, Pali ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user