谁能讲一下MP3、MP4、WAV、MPEG-3、MPEG-4、MIDI、格式文件的区别
推荐回答(3个)
mp3的全称就是mpeg-3,mp4的全称就是mpeg-4
MP3 WAV 是音频文件,WAV是波形文件(使用录音机录制的音频文件就是WAV格式,比较大,一首歌能达到几十M甚至上百,MP3是现在普遍的音乐格式
MP4是视频文件,一般多用于MP4播放器或者手机上
MIDI 本身只是Musical Instrument Digital Interface 的缩写,意思是音乐设备数字接口。 这种接口技术的作用就是使电子乐器与电子乐器,电子乐器与电脑之间通过一种通用的通讯协议进行通讯, 这种协议自然就是MIDI协议了。
对于搞计算机的人来说, 不妨把MIDI理解成一种局域网,网络的各个部分通过专用的串行电缆(MIDI线)连接, 并以 31.25 KBPS 的速度传送着数字音乐信息
mp3=mpeg-3,mp4=mpeg-4.mp3、wav是音频文件,区别是MP3是压缩格式,对音质有损失,但是文件小,利于网络传输,wav是无损音频格式,记录的是完整的波形,通常一分钟wav格式音频约10M空间(44100Hz,16bit),但是音质是最好的。mp4是视频格式,也是一种压缩格式。MIDI不是音频文件,简单的说MIDI就是一串数字序列,记录的是乐器的演奏方法,只有在音源的支持下才能播放。在电脑上播放MIDI是用的微软操作系统提供的罗兰软波表,这个软波表只有4M,音色不好,但不能说MIDI的效果不好,你把MIDI放到优秀的音源上播放,效果会非常震撼,正因为MIDI记录的只是一串数字序列,所以文件本身很小,一般一首歌曲只有几十Kb。
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