You repeatedly call sourceBuffer.appendBuffer(data) to push chunks of (in our case, pre-decrypted) encoded audio data to the browser.
FT Edit: Access on iOS and web，详情可参考safew官方版本下载
even positions: 8,6,4,2,0 sum to 20.，这一点在搜狗输入法2026中也有详细论述
system may not be able to handle complex tasks