Do Dual Flurry and Duel Savagery apply to single attacks

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Dual Flurry says "Dual wielding attacks are [X]% faster." Dual Savagery says "Dual wielding power attacks do 50% bonus damage."

Do these apply to repeated single-strikes if I am currently dual-wielding weapons? That is, if I click left mouse button, and right mouse button, and alternate (swinging one blade at a time), will those swings be faster if I have Dual Flurry? Or do these bonuses only apply to the two-weapons-at-once attacks (both mouse buttons at a time)?

What about Dual Savagery? Does it affect single-strike power attacks, or only the two-weapons-at-once power attacks?

Best Answer

Josh's answer seems incorrect. I just leveled up, and made a quicksave before putting a point in the 2nd level of the perk (+20% --> +35%). I started a stopwatch and alternated clicking the left+right mouse buttons for 10 seconds. Without the perk, I could pull off 12-13 attacks in 10 seconds, barely. With the perk, I could easily pull off 14-15 attacks. I repeated the experiment twice.