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