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<blockquote data-quote="nicolaasjan" data-source="post: 1120237" data-attributes="member: 101172">The aac (in m4a container) and especially the <a href="https://en.wikipedia.org/wiki/Opus_(audio_format)" target="_blank">opus codec</a> achieve the same quality at roughly half the bitrate. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite109" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />(opus is the best option, but not all devices can play it)Also, it depends on the quality of the audio that was uploaded to YouTube in the first place!Some just upload 128kbps mp3 grabbed from e.g. Soundcloud. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite117" alt=":eek:" title="Eek!&nbsp; &nbsp; :eek:" loading="lazy" data-shortname=":eek:" />YT then converts it to m4a and opus and in the process there is even more loss.mp3 is considered ancient now.</blockquote>

[QUOTE="nicolaasjan, post: 1120237, member: 101172"] The aac (in m4a container) and especially the [URL='https://en.wikipedia.org/wiki/Opus_(audio_format)']opus codec[/URL] achieve the same quality at roughly half the bitrate. :) (opus is the best option, but not all devices can play it) Also, it depends on the quality of the audio that was uploaded to YouTube in the first place! Some just upload [B]128kbps[/B] mp3 grabbed from e.g. Soundcloud. :eek: YT then converts it to m4a and opus and in the process there is even more loss. mp3 is considered ancient now. [/QUOTE]

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