I've successfully built a VirtualBox instance, based on Ubuntu, for use under Vagrant. Now I'd like to set up ALSA to use the host's audio output system. Making things more complicated, the host could be running Linux, macOS, Windows, or ??? Anyway, when I try to run speaker-test, I get the following output:
vagrant@perkify-make:~$ speaker-test speaker-test 1.1.8 Playback device is default Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default Playback open error: -2,No such file or directory I'm hoping that this is just a simple configuration problem and that there is a command-line way to resolve it. However, I'm totally new to ALSA, so it's quite possible that the problem is deeper than that. So, the following questions may be rather naive. That said: Q: Is ALSA capable of being used in a VirtualBox machine? Q: Would it require different settings for each host OS? Q: Is there a relevant command-line tool or config file? Any other helpful clues, comments, and suggestions are solicited. -r _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
