ffmpeg commands

Check file info:

- ffmpeg -i <input>

- ffprobe <input>

Output file:

ffmpeg -i <input> -filter:v fps=fps=30 <output>

ffmpeg -i <input> -filter:v fps=fps=30 -b:v 20080k -b:a 201k <output>

ffmpeg -i <input> -filter:v fps=fps=30 -b:v 10040k -b:a 201k <output>

ffmpeg -i 20210113_2_24fps.mp4 -filter:v fps=fps=30 -b:v 20080k -b:a 201k 20210113_3_30fps_2.mp4

ffmpeg -i 20210113_2_bg1.mp4 -filter:v fps=fps=30 -b:v 10040k -b:a 201k 20210113_2_bg1_30fps_tbr10M.mp4

ffmpeg -i love.mp4 -filter:v fps=fps=30 -b:v 20M -b:a 127k love_30fps_tbr20M.mp4

Sound Interface (声卡)

Sound Interface

• 外置入门级声卡
• 一款小而华丽的外置声卡YAMAHA AG-03
• Guitar Center: Yamaha AG-03, Focusrite Scarlett 2i2 
  
• 电钢琴/电子琴和电脑声卡之间的连接方法
• YAMAHA: Live Streaming System Setup Guide (PDF)

Software Mixer

• VoiceMeeter

电子钢琴内录

•  USB-MIDI cable，连接Mac，用garageband录音
• USB-C -MIDI cable，连iPhone，用garageband录音

声卡

• Microphon: XLR cable 
• Piano: aux cable
  

黄光剑（CG艺术家）

• 百度百科：黄光剑
• 黄光剑、林冉的cg水平如何，值得去他们的培训班吗？
• https://www.artstation.com/gyhgjart
• http://www.hgjart.com/