Changes between Version 49 and Version 50 of Encode/AAC


Ignore:
Timestamp:
Aug 11, 2016, 9:42:07 PM (10 years ago)
Author:
mjbrown
Comment:

increasing the amount of high-frequency content takes away precious bits from the lower bands

Legend:

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  • Encode/AAC

    v49 v50  
    1111= libfdk_aac =#fdk_aac
    1212
    13 The Fraunhofer FDK AAC codec library. This is currently the highest-quality AAC encoder available with ffmpeg. Requires ffmpeg to be configured with `--enable-libfdk-aac` (and additionally `--enable-nonfree` if you're also using `--enable-gpl`). But beware, it defaults to a low-pass filter of around 14kHz ([[http://wiki.hydrogenaud.io/index.php?title=Fraunhofer_FDK_AAC#Bandwidth|details]]). If you want to preserve higher frequencies, use `-cutoff 18000`.  Adjust the number to the upper frequency limit you prefer.
     13The Fraunhofer FDK AAC codec library. This is currently the highest-quality AAC encoder available with ffmpeg. Requires ffmpeg to be configured with `--enable-libfdk-aac` (and additionally `--enable-nonfree` if you're also using `--enable-gpl`). But beware, it defaults to a low-pass filter of around 14kHz ([[http://wiki.hydrogenaud.io/index.php?title=Fraunhofer_FDK_AAC#Bandwidth|details]]). If you want to preserve higher frequencies, use `-cutoff 18000`.  Adjust the number to the upper frequency limit you prefer, keeping in mind that a higher limit may audibly reduce the overall quality.
    1414
    1515Detailed information about the FDK AAC library (not FFmpeg specific) can be found at [http://wiki.hydrogenaud.io/index.php?title=Fraunhofer_FDK_AAC HydrogenAudio Knowledgebase: Fraunhofer FDK AAC].