Difference between revisions of "Talk:Apple AAC"
From Hydrogenaudio Knowledgebase
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==Page discussion== | ==Page discussion== | ||
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| + | == encoder bandwith and low pass filters | ||
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| + | 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 == | == 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. | 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. | ||
Revision as of 12:07, 26 September 2020
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This is the talk page for discussing changes to the Apple AAC article. | |
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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.
