Sound-absorbing structure and sound-absorbing wall

According to one aspect of the present disclosure, a sound-absorbing structure has: a perforated surface having a plurality of through-holes; a first cavity part which has a portion extending non-parallel to the normal direction of the perforated surface, and which is capable of ventilating between the inside and the outside of the first cavity part via a plurality of through-holes present in a first region of the perforated surface; and a second cavity part capable of ventilating between the inside and the outside of the second cavity part via a plurality of through-holes present in a second region adjacent to the first region of the perforated surface. 根据本公开的一技术方案，吸音构造体具有：穿孔面，其具有多个贯通孔；第1空腔部，其具有与所述穿孔面的法线方向非平行地延伸的部分，能够经由存在于所述穿孔面的第1区域的多个贯通孔而在所述第1空腔部的内部与外部之间通气；以及第2空腔部，能够经由存在于所述穿孔面的与所述第1区域相邻的第2区域的多个贯通孔而在所述第2空腔部的内部与外部之间通气。