WAV files are uncompressed. The signal coming out of the player is exactly the signal the designer created. For safety and smoothness, the WAV format remains the gold standard for high-end estim content.
This is where the ".wav" format truly shines. Standard audio uses Left and Right channels. In estim, this usually corresponds to two output channels. However, the human body acts as a conductor. When you place electrodes in a configuration that allows the Left and Right signals to interact across the skin, you create a virtual "third channel" in the middle. A skilled audio designer manipulates the phase of the Left and Right channels to move the sensation across the body, creating sweeping waves or rotating patterns that feel like they are moving inside you.
host extensive collections of community-made "AudioStim" tracks, including tri-phase and sine loop collections. Structuring and "Putting Together" the Audio