我在用GOLDWAVE时把音乐文件另存为wave，下拉菜单里有好多种参数：PCM signed 16bit 单声道PCM signed 16bit 立体声PCM signed 24bit 单声道PCM signed 24bit 立体声PCM signed 32bit 单声道PCM signed 32bit 立体声请问哪种参数音质最佳???我选了PCM signed 32bit 立体声,可以正常播放,但转成MP3就成了一段噪声??? 到底应该怎么办?求达人解答