// +build !linux,!freebsd,!netbsd,!openbsd,!windows,!darwin,!js package beeep var ( // DefaultFreq - frequency, in Hz, middle A DefaultFreq = 0.0 // DefaultDuration - duration in milliseconds DefaultDuration = 0 ) // Beep beeps the PC speaker (https://en.wikipedia.org/wiki/PC_speaker). func Beep(freq float64, duration int) error { return ErrUnsupported }