Isochronous / isochronic tone pulse (3Hz LFO frequency oscillation) 1 hour royalty free sound for sleep or meditation video, relaxation vlog, alternative therapy, and commercial business use. Delta frequencies are most strongly associated with slow‑wave sleep, the deepest, most restorative sleep stage. Ideal for YouTubers, podcasters, and wellness creators layering a simple timing bed under … Continue reading Sleep Induction Therapy Isochronic Sound 3 Hz Delta (1 Hour)