I'm using a debian container on a Mac OS Yosemite host. I am not sure if this is even possible with docker(I'm not exactly sure of how hardware resources such as sound cards are shared with containers). Added -group-add audio while running theĬontainer by specifying docker run -group-add audio -t -i.Depending on the method of connection for external audio, this will be either: Optical Digital Audio Output (Optical cable) or HDMI/ARC (HDMI cable). Press the SMART button on the remote control and select Settings > SOUND > Sound Out, then press Wheel or Enter. I installed alsa-utils and most of the alsa dependencies within my To set the Sound Out mode, follow the steps below.

I guess that the main problem is docker container is unable reach the sound card on my host. Other programs/games follow suit when I change my default audio device and I really dislike that I have to exit out of Firefox completely and reopen for my audio to come through the correct device.

When I try to play a wav file in my docker container aplay Alesis-Fusion-Acoustic-Bass-C2.wavĪLSA lib confmisc.c:768:(parse_card) cannot find card '0'ĪLSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directoryĪLSA lib confmisc.c:392:(snd_func_concat) error evaluating stringsĪLSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directoryĪLSA lib confmisc.c:1251:(snd_func_refer) error evaluating nameĪLSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directoryĪLSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such file or directoryĪLSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM defaultĪplay: main:722: audio open error: No such file or directory Whenever I change from audio device to another, Firefox does not change its audio output to match my current device. I'm trying to dockerize a text to speech application for sharing the code with other developers, however the issue I am having right now is the docker container cannot find the sound card on my host machine.

Change speaker output for firefox mac