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  1. hi guyz.

    i want to encode audio via megui with aac codec like this information:

    Code:
    Audio
    Format                                   : AAC
    Format/Info                              : Advanced Audio Codec
    Format version                           : Version 2
    Format profile                           : LC
    Channel(s)                               : 2 channels
    Channel positions                        : Front: L R
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 46.875 FPS (1024 SPF)
    Compression mode                         : Lossy
    Stream size                              : 98.0 MiB (100%)
    in this information, bitrate is not available i do it with media encoder (adobe) but i usually use megui and always encode a audio information is like this:

    Code:
    Audio
    ID                                       : 2
    Format                                   : AAC
    Format/Info                              : Advanced Audio Codec
    Format profile                           : LC
    Codec ID                                 : A_AAC-2
    Duration                                 : 1 h 58 min
    Bit rate                                 : 128 kb/s
    Channel(s)                               : 2 channels
    Channel positions                        : Front: L R
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 46.875 FPS (1024 SPF)
    Compression mode                         : Lossy
    Delay relative to video                  : 9 ms
    Stream size                              : 109 MiB (11%)
    Language                                 : English
    Default                                  : Yes
    Forced                                   : No
    so how can i encode audio with megui in aac codec like first information?
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  2. It's normal for bitrate information to be saved. What container is the AAC in (M4A, MP4, MKV etc) or is it raw AAC?

    The only ways I know of to ensure MediaInfo doesn't show the bitrate, is to view the raw AAC stream (not in a container such as MP4) as per the first screenshot, or to mux AAC in an MKV with MKVToolNixGUI, and with --disable-track-statistics-tags set as an additional option under the Output tab, as per the second screenshot. I don't think there's a way to tell MeGUI to to that.

    I don't know what Media Encoder does.
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  3. It's normal for bitrate information to be saved. What container is the AAC in (M4A, MP4, MKV etc) or is it raw AAC?
    m4a or mp4
    I don't know what Media Encoder does.
    i guess media encoder used qaac codec (apple) but i try to with megui and result are same aac nicaudio.
    really i need to compress my audio size and keep quality.
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  4. Dinosaur Supervisor KarMa's Avatar
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    People can still find out the bitrate of the audio, even if you are trying to hide it. MKV does not tend to keep AAC audio bitrate info so I would go with that.
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  5. Originally Posted by enable View Post
    It's normal for bitrate information to be saved. What container is the AAC in (M4A, MP4, MKV etc) or is it raw AAC?
    m4a or mp4
    I don't know what Media Encoder does.
    i guess media encoder used qaac codec (apple) but i try to with megui and result are same aac nicaudio.
    really i need to compress my audio size and keep quality.
    The difference between the two MediaInfo outputs you posted, I'm pretty sure, is the first one is raw AAC not in an M4A/MP4 container, and the second one is AAC in a container. If that's the case it'll be the same for every AAC encoder. MediaInfo won't show the bitrate for raw AAC, but it will if it's in an MP4/M4A container, or remux the audio and video with MKVToolNix using the method I suggested and then MediaInfo won't show the AAC bitrate.

    Although what does showing the bitrate have to do with how much you compress the audio? It'll be the same bitrate whether MediaInfo shows it or not.
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