Talk:Apple AAC: Difference between revisions

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Revision as of 12:07, 26 September 2020

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Page discussion

== encoder bandwith and low pass filters

Just as in Fraunhofer encoder wiki, it's advisable to know apple encoder's default lowpass filters with bitrates, to be able to change defaults with --lowpass command option. Low pass filters is important to ascertain how the encoder chooses to omit high frequency information.

FFmpeg with AudioToolbox

In recent versions of FFmpeg on OS X it is possible to use the Apple encoders via AudioToolbox. AAC encoder is called aac_at. Unlike afconvert, it preserves metadata when encoding.

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 ==Page discussion==
+== encoder bandwith and low pass filters
+Just as in Fraunhofer encoder wiki, it's advisable to know apple encoder's default lowpass filters with bitrates, to be able to change defaults with --lowpass command option.
+Low pass filters is important to ascertain how the encoder chooses to omit high frequency information.
 == FFmpeg with AudioToolbox ==
 In recent versions of FFmpeg on OS X it is possible to use the Apple encoders via AudioToolbox. AAC encoder is called <code>aac_at</code>. Unlike afconvert, it preserves metadata when encoding.