All of the subliminal affirmations are recorded slightly below the normal hearing range. Your subconscious mind will hear them and absorb the suggestions.
If you were able to hear them it would defeat the purpose. Your conscious mind may reject them if you could hear and analyze them.
This is how subliminals work. All you will hear is the relaxing backing track. You may pick up on a very slight whisper now and then, depending on how good your hearing is.
All of our recordings have positive affirmations recorded in the background and are repeated over and over again for the full length of the audio.