How can I add these lines in mopidy.conf format?

I added these lines to my mopidy.conf a while ago like this.

audio_output {
type "fifo"
name "my_fifo"
path "/tmp/mpd.fifo"
format “44100:16:2”
} # mpd.conf format

output = tee name=t t. ! queue ! autoaudiosink t. ! queue ! audioresample ! audioconvert ! audio/x-raw,rate=44100,channels=2,format=S16LE ! wavenc ! filesink # mopidy.conf format

Now I need add these lines in mopidy.conf format do you guys any idea how can I do this ?

audio_output {
type "alsa"
name "My ALSA"
buffer_time “50000” # (50ms); default is 500000 microseconds (0.5s)

The documentation would be a great place to start looking:

Edit: what I really mean to ask is, does that option not work for you? Strictly speaking you also may want to swap autoaudiosink for alsasink (may or may not be actually necessary depending on your system configuration).