鸡汤来喽

Uploaded by Happy_339178 on Sep 17, 2022

Happy_339178

Happy_339178 

XP 38

Joined 2 years ago

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Introduction

来源:https://www.bilibili.com/video/BV1Vq4y1b7hY/
声音字体要用Microsoft GS Wavetable Synth
视频评论:小短腿柯基 LV5 这玩意原理在于,MP3转MIDI时,转换器会对PCM波形采样进行傅立叶变换,得到频率分布及各频率的响度。前者结果进一步量化,得到MIDI音符位置;后者则量化为音符响度,二者构成MIDI元数据。
如果用正弦波发生器加载得到的MIDI文件,那么效果将会接近于“全损音质,略微跑调”的原音频。这一回放过程相当于卷积。但由于量化精度很低(只有88个固定频率),故音质非常差。
而视频中这种“听出人声”的情况,是因为钢琴的基音正是正弦波。这些正弦波信号根据上述原理还原了原音频。而人的听觉具有“鸡尾酒会效应”,即会主动捕捉声音的焦点。故听觉中枢会主动滤除泛音信号的干扰,这样,就听到人声了。
(复制粘贴)

Composer: 一个有梦想的炒饭
Ratings:

Film Score   

Standard Midi File Properties

Standard Midi File Properties

Channels and Instruments

Used 1 channel, 1 instrument

  • 1
    Acoustic Grand Piano

    Acoustic Grand Piano

    10,998 notes/chords,avg. pitch B4

    Program ID: 0, Track: 0

    time: 00:00 - 04:48

    pitch: D#-1 - G7

Tracks

only 1 track is used, 1 track has notes

# Name Channel(s) Instrument(s)
0 1 Acoustic Grand Piano

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4 ratings

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评论规则

Happy_387927
Happy_387927 XP 60
a year ago 20#

鸡汤来咯


Happy_371475
Happy_371475 XP 209
3 months ago 19#

他奶奶为什么不下?


Happy_517591
Happy_517591 XP 164
9 months ago 18#

鸡汤来咯好好好哈


天涯鸽鸽
天涯鸽鸽 XP 972
11 months ago 17#

好活!!!


Happy_472647
Happy_472647 XP 62
a year ago 16#

haoting


Happy_371475
Happy_371475 XP 209
a year ago 15#

老冯啊大伙都不敢吃听说有人在菜里下了毒


初夏屿鹿
初夏屿鹿 XP 2359
a year ago 14#

穿山甲是吧,害嗨害


哥大白大哥
a year ago 13#

噔噔咚


===梦===
===梦=== XP 1243
a year ago 12#

da'a'fa'fa


岗岚
岗岚 XP 606
a year ago 11#

好家伙,鸡汤来喽!!!


6667383
6667383 XP 965
a year ago 10#

哥,,


Happy_297747
Happy_297747 XP 222
a year ago 9#

这也行


Happy_361893
Happy_361893 XP 259
a year ago 8#

jkghjk


Happy_249679
Happy_249679 XP 50
a year ago 7#

厉害


1迪奥·布兰度1
2 years ago 6#

牛逼、


1迪奥·布兰度1
2 years ago 5#


1迪奥·布兰度1
2 years ago 4#


1迪奥·布兰度1
2 years ago 3#


1迪奥·布兰度1
2 years ago 2#


1迪奥·布兰度1
2 years ago 1#