The note G is 392 HZ what is the frequency of this note one octave higher

Sol, So, or G is the fifth note of the fixed-Do solfège starting on C. As such it is the dominant, a perfect fifth above C or perfect fourth below C.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of Middle G (G4) note is approximately 391.995 Hz.