i can't set bluealsa to default

[zxc503]

my .asoundrc is

pcm.bluealsa { 
  type plug 
  slave.pcm { 
      type bluealsa 
      device "CC:4B:73:3F:9E:49" 
      profile "a2dp" 
    }
}
pcm.!default {
    type plug 
    slave.pcm { 
      type bluealsa 
      device "CC:4B:73:3F:9E:49" 
      profile "a2dp" 
    }
}

i can use command aplay -D bluealsa sound.wav to play sound.wav
but i can't use aplay -D default sound.wav to play sound.wav
It shows that Playing WAVE 'sound.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo ,but it didn't play the sound

[ab1jx]

This doesn't actually set it to the default device, you still have to specify the bluealsa device. I'd like to get it working with Audacity, which has its own device scheme. If there was a way to make bluealsa the default when you want then change it back when you want that would be the most transparent solution.

At https://www.alsa-project.org/main/index.php/Setting_the_default_device is the official procedure for setting the default device but it expects a card number. Hmm, what if my name is actually a number?