This is where the file 'sentences.txt' in alvesounds comes up.
Setting up equipment for noiseless recording
I explain how to prepare sounds so they loop properly in game.
To create atmospheric soundeffects, you need to keep several basic rules in mind.
How to convert sounds to proper HL format using Goldwave
A level just isn't a level without some sort of sound in it, whether it be the sounds of computers in a computer room or a CD audio track.
Recording and preparing sounds for use in HL. Some aspects also apply to Source.
the low tech way...
How to loop those ambient_generic sounds.
Custom Sounds Tutorial
Want to get those NPCs talking? Read on!
A perfect mixdown for your ingame sounds.
Play an MP3 in your mod's startup screen.