Through acoustic testing, the research team identified a narrow frequency band – a “safety gap” – capable of penetrating ANC headphone filters. This range lies between 750 and 780 Hz.
Is there a standard specifying this "safety band"? Is whatever Apple does for AirPods a de-facto standard?
Through acoustic testing, the research team identified a narrow frequency band – a “safety gap” – capable of penetrating ANC headphone filters. This range lies between 750 and 780 Hz.
Is there a standard specifying this "safety band"? Is whatever Apple does for AirPods a de-facto standard?