結けつ合ごう音おん

noun

combination tone; resultant tone

Technical term in acoustics and music for a tone perceived when two loud tones are sounded simultaneously, at a frequency not present in the original sounds.

• 結けつ合ごう音おんは、二ふたつの強つよい音おとが同どう時じに鳴なるときに生しょうじる第だい三さんの音おとである