432 Hz
Audio & Music tuned to 432 Hz is softer and brighter, giving greater clarity and is easier on the ears. Many people experience more meditative and relaxing states of body and mind when listening to this frequency. This natural frequency gives a more harmonic and pleasant sound than 440 Hz.
Because 432 Hz gives a greater clarity than 440 Hz, there’s less need to play it as loud as 440 Hz. This means less hearing damage, as long as you listen at a reasonable volume that is not too high. Furthermore there’s also less noise pressure.
This tuning can be found throughout various religions and cultures of the ancient world. It seems that implementing it into the musical instruments was a good choice. Even today, many musicians report positive effects from retuning to 432 Hz, such as better audience response and a more laid-back feel to their performances.
