dsd - decode a demodulated file

[EKebriaei]

Hi,
I have a demodulated binary file. This file contains DMR and should be first decoded and the dissected. I tried using the following command:
dsd -r AfterDemod__BinaryFloat32.bin -w out.wav -fr -ma
but it gives this error:
Error: could not open -w
When I run without -w I got the following error:
Error, couldn't open /dev/audio
Can you help me with that. I don't have devices I just have files. I also know some part of these speeches are encrypted.