Preheat the oven to 350°F (175°C).
In a large bowl, sift together the cake flour and 3/4 cup of sugar. Set aside.
In another bowl, beat egg whites and cream of tartar until foamy. Gradually add the remaining 3/4 cup sugar, beating until stiff peaks form.
Gently fold in vanilla extract, almond extract, and salt into the egg whites.
Sift the flour mixture over the beaten egg whites, a little at a time, folding gently until incorporated.
Pour the batter evenly into an ungreased 10-inch tube pan. Smooth the top with a spatula.
Bake in the preheated oven for 35 to 40 minutes, or until the cake springs back when touched.
Invert the pan immediately and let cool completely before removing the cake from the pan.