![]() ![]() Apparently, other characteristics other than the video popularity have an impact on whether or not a YouTube video will get its Opus version. Some users claim that their YouTube videos with less than 1000 views have WebM versions, whereas their videos with over 1000 views don’t have them. According to user reports found online, YouTube determines it on a case-by-case basis. However, how much traction is considered to be enough is tough to tell. This version is allegedly played by default when YouTube users watch the video. Once a video gets enough traction, YouTube automatically encodes its Opus version with an audio stream that plays at anywhere from 50kbps to ~160kbps. Initially, all uploaded videos are encoded into AAC, and usually are 128kbps. There are two codecs YouTube uses for audio – AAC (in an MP4 container) and Opus (in a WebM container). Tip*: You can learn more about the impact of data compression on audio quality from* this in-depth article. Even when you upload a video with lossless ( FLAC) audio, YouTube transcodes it into AAC and then plays it back at 48kbps, 128kpps, and 256kbps respectively, depending on the selected audio quality settings, but never at 320kbps bitrate. Unfortunately, there is technically no way to upload audio to YouTube without quality loss. ![]() The platform automatically encodes all audio tracks from uploaded videos into the formats that YouTube supports. YouTube Audio Encoding and Its Impact on Quality
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