Nothing plays at all, even tested premade ones

[Jimbochen]

1) Does HLDJ launch the game correctly for you?
Yes
2) Does "HLDJ Loaded Successfully" appear in console on starting the game (with no errors)?
Yes
3) What is the console output after selecting a song, or issuing other HLDJ commands such as "hldj_next"?
Host_WriteConfiguration: Wrote cfg/hldj_cmd_d.cfg
Loaded : TF2 - Hudda Hudda Huh!
4) After creating your own local server and enabling playing of audio files:
4-a) Load one of the sample audio files and perform a search of your Steam directory (without stopping HLDJ) for the file "voice_input.wav" - does it show up, and if so, where?
C:\Program Files (x86)\Steam\steamapps\Steamname\team fortress 2
4-b) If it exists, open it in an audio player: does it sound like the audio file you loaded?
Yes
4-c) If it exists, return to the game, and enter the following into console:
Does the audio file start to play?
No
5) Does voice normally work for you? If not, or you do not have a mic, have you remembered to set up any applicable options in your operating system and/or the game? *
Yes

[Renegade]

Double check you are testing on a server that has HLDJ enabled. Also make sure to use the sample audio files.