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谁能建议我什么音频和视频编解码器允许我在不带任何过滤器的结果 mp4 或 avi 视频中保留高于 18khz 到 22050hz 的频率。
大小无限制,首选高清。
AAC 编码器支持高达 96000 Hz 的频率。(“libfdk_aac”、“aac”、“libvo_aacenc”编解码器)
UPD
我以无损压缩音频为源。
查看它的光谱
我使用 ffmpeg 将其与视频一起重新编码。
ffmpeg -t 10 -i 01.mp4 -t 10 -i Wait.m4a -ar 48000 -ab 320k -c:a aac -strict -2 Wait.mp4
结果文件中的音频频谱。
I have searched for a few examples and not found one that is similar to what I have and what I want to achieve.
I have 2 lists
class object1 { string obj1_name; int obj1_qty; } List<obj