It does. AAC 是 MP4-家庭丢失编码器, 以同一位元速率比 MP3 明显好于 MP3, 苹果设备的默认值也好于 MP3. That determines whether the corrected audio can be written back exactly or has to be re-encoded.
是的:free accounts process audio up to 15 MB per file, which at typical bitrates is several hours of material; ffmpeg does the decoding and encoding, exactly as it would on a desktop。这是网站在视频之后最慷慨的上限, 音频工作很少能进入它。
此网站的转换器将图像从WebP、PNG、JPG和AVIF移动到WebP、PNG、JPG和AVIF, 也就是您决定是否值得丢失一个较小的文件。 Doing it in that order matters: pick the pixels first and the container afterwards, because the container is the cheap decision and the pixels are the expensive one.
