Outputting pipes from aplay to iscord on centos

I am trying to automate some tests for a websocket client. This client connects to the server on command, and the server is basically a text engine. The client supports streaming audio from a microphone, so people can record themselves in real time and feed it to the engine. I am running a client in a centos virtual machine that does not have a physical sound card, so I decided to simulate one using

modprobe snd-dummy

      

        
        
        
      

    

My plan is to output the output

aplay audioFile.raw

      

        
        
        
      

    

at the entrance

arecord test.raw -r 8000 -t raw

      

        
        
        
      

    

so that I can use this to simulate the microphone function. I read online that the file plugin for ALSA can pipe the results of one command to the next, so I made the following changes to the .asoundrc file in the root directory:

pcm.!default {
    type hw
    card 0
}

pcm.Ted {
       type file
       slave mySlave
       file "| arecord test.raw -r 8000 -t raw"
}

pcm_slave.mySlave {
       pcm "hw:0,0"

}

ctl.!default {
        type hw
        card 0
}

      

        
        
        
      

    

When trying to run the following command:

aplay audioFile.raw -D Ted

      

        
        
        
      

    

It seems to work fine, but the output of test.raw only seems to contain silence ... Does anyone know what I am doing wrong, I am very new to ALSA, so if anyone can point me in the right direction, that would be greatly appreciated. Thank you!