Without a clapperboard, no. Visually syncing isn’t as time consuming as it may sound though because once you sync the first peak, then you get an idea as to how the whole clip will go.
“Thousands of candles can be lighted from a single candle, and the life
of the candle will not be shortened. Happiness never decreases by being
shared.”
Buddha
…
“Creativity is a drug I cannot live without.”
Cecil B. DeMille
“The happiness of a man in this life does not consist in the absence but in the mastery of his passions.”
Alfred Lord Tennyson