1. echo; reverberation
2. sound (esp. the distinctive sound of an object or activity, e.g. rain, gun, gallop, drum); noise
屋根を打つ雨の響きが心地よい。The sound of rain beating on the roof is soothing.
3. quality of a sound (e.g. a fine phrase, clear voice, resonant bell); feeling of a sound; emotion or feeling inspired by something heard or read
しかも名前の響きがまたいいんだ。Moreover, the sound of the name is also nice.