... and in a low voice but not so low as not to be audible to all... 
Miguel de Cervantes 「The History of Don Quixote, Volume II., Complete」
... The cries of the Dutch, who were being poniarded upon their guns by D’Artagnan’s grenadiers, were distinctly audible...
Alexandre Dumas, Pere 「The Man in the Iron Mask」
...The lapping of the wavelets of the lake against the foot of the palacewall was distinctly audible in the utter and almost breathless silencewhich ensued...
Edgar Rice Burroughs 「Tarzan the Terrible」
...In spite of the serious matters in hand I could not forbear a smile, while young Bernenstein broke into an audible laugh, which he tried to smother with his hand...
Anthony Hope 「Rupert of Hentzau」
... The flies droned as drowsily and the murmur ofthe brook below was just as audible...
Charles W. Chesnutt 「The House Behind the Cedars」
...The raven, he said, did notcroak, but constantly uttered his harsh, powerful,barking cry, while the falcon emitted shrill, piercingcries that must have been audible two miles away...
W. H. Hudson 「Birds and Man」
...Even in the species having the lowest pulse rates, thepulsations are not audible...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Perhaps—well, perhapsthere are things visible and audible to dogs; towhich humans were deaf and blind...
Albert Payson Terhune 「Lad: A Dog」
...It isreadily audible at the distance of a mile when it breaks the stillnessof a summer night...
Nathaniel Southgate Shaler 「Domesticated Animals」
...With an audible grunt, Wakayoo moved on...
James Oliver Curwood 「Baree, Son of Kazan」
...The sound of tearingplanking was distinctly audible above the roar ofthe waves...
John Charles Beecham 「The Argus Pheasant」
...As I proceeded to collect and open the burs, I was half prepared to hear an audible protest from the trees about, for I constantly fancied myself watched by shy but jealous eyes...
John Burroughs 「Birds and Bees, Sharp Eyes and, Other Papers」
...As no danger seems near, the cooing of theparent bird is soon a very audible clucking call,and the young move cautiously in that direction...
John Burroughs 「Bird Stories from Burroughs」
...A barely audible "peep" note was heard from one hatchling Sharp-tailed Sparrow when I held it near my ear...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...They do not low loud (like the cattle ofEngland) any more than those of Hindostan; but make a low gruntingnoise, scarcely audible, and that but seldom, when under some impressionof uneasiness...
George Vasey 「Delineations of the Ox Tribe」
... exclaimed with a loudand audible voice:...
R. S. Surtees 「Mr. Sponge's Sporting Tour」
...The noise of pursuit gained slightly on them, and a sound as of intensebreathing became audible...
Victor Rousseau 「Astounding Stories of Super-Science January 1930」
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