Auguste was making musical instruments in La Couture by 1813, but by 1830 had moved his workshop to Paris.
In the 1830s he designed and built two new bass clarinets, developed an improved Boehm system flute (with flutist Victor Coche), and, with H.E.
Auguste Buffet jeune died on 30 Sep 1864 in Anet.
By about 1830 he had begun to work at the musical instrument manufacturing firm established by his father, and at the latter's death in 1841 he took over the company.
Between 1859 and 1862 he was awarded several patents relating to woodwind instrument making, and in 1864, when his father died, he took over operation of the business.