import Foundation

/// dB ↔ linear gain helpers. -60 dB and below count as silence.
public enum Level {
    public static let floorDB: Float = -60

    public static func gain(fromDB db: Float) -> Float {
        db <= floorDB ? 0 : powf(10, db / 20)
    }

    public static func db(fromGain gain: Float) -> Float {
        gain <= 0 ? floorDB : max(floorDB, 20 * log10f(gain))
    }
}