A natural sounding headphone should have a gentle hump in the bass (about 3 or 4 dB) between 40Hz and 500Hz. (This compensates for the fact that headphones don't give you the physical punch that the sound from a speaker has; so a slight compensation of in
A natural sounding headphone should have a gentle hump in the bass (about 3 or 4 dB) between 40Hz and 500Hz. (This compensates for the fact that headphones don't give you the physical punch that the sound from a speaker has; so a slight compensation of in
这大致是说,耳机频响曲线在低频40-500赫兹间有个小的隆起是正常的,因为耳机不能象喇叭那样给人真实的低频冲击力,所以在这个低频段加强一些,声音反而自然逼真些.另外,为避免太刺激耳朵,耳机在1000赫兹起到耳朵听力的极限20000赫兹间应该有衰减,到2万赫兹处比平均输出低8-10分贝是正常现象.