The brit milah is a Jewish religious male circumcision ceremony performed by a mohel on the eighth day of the infant's life. The brit milah is followed by a celebratory meal.
WHAT IS SOUND MASKING? Sound Masking is the addition of an unstructured sound to an environment that fills in the sound spectrum and makes the structured sound of human speech less intelligible. Usually itâs an unintrusive sound like airflow, similar to a typical modern HVAC system. Sound Travels.
The relationship between sound and noise levels is generally described in terms of a signal-to-noise ratio. With a masking noise level between 35 and 100 dB, the threshold for 100% intelligibility is usually a signal-to-noise ratio of 12 dB. The speech signal ranges from about 200-8000 Hz, while human hearing ranges from about 20-20,000 Hz, so the effects of masking depend on the frequency range of the masking noise.