LibEnvVars

The settings of these environment variables affect the operation of alsa-lib

LIBASOUND_DEBUG: =1 print errors to stderr, dump hw_params; =2 also assert(0)
ALSA_CONFIG_PATH_VAR: file to use instead of ALSA_CONFIG_DIR/alsa.conf"
ALSA_MIXER_SIMPLE: file to use instead of ALSA_CONFIG_DIR/smixer.conf
ALSA_MIXER_SIMPLE_MODULES: path to modules .so files
LADSPA_PATH: path to ladspa plugins