Audio not playing/voice chat box not appearing (TF2)

[Dexidus]

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"? Song Loaded Successfully
4) Create your own local server and set the appropriate sv_ commands (see above), then:
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? Yes, in the parent directory of the TF2 directory
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 microphone, have you remembered to set up any applicable options in your operating system and/or the game? * Yes, my mic normally works

[Renegade]

4-c = no --> server is not set up correctly.