Home Forums Breakaway Audio Enhancer 48000 > 44100 BAE Conversion

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  • #3611
    MixMaker
    Member

    Hello:

    I've been reading lots of posts regarding this and yet I can't solve my doubt (sorry).

    So I'll ask plain and simple: If I had set BAE for samplerate input @44100 and samplerate output @48000 since I play mostly CDs and MP3s and understand that BAE makes a high quality conversion to match my soundboard, what happen if I play a DVD for example? BAE converts 48000 to input 44100 and then converts back to 48000 for output? Or just bypasses the samplerate?

    I'm asking this because I'm thinking to convert all my music videos which have 48000 audio to 44100 and I want to know if worth it.

    Thanks.

    #5779
    MrKlorox
    Participant

    From what I understand you won't want to resample or change the bit depth of the original files themselves since this stuff can usually be done by BAE or the player.

    Also I could be wrong but I believe it "converts 48000 to input 44100 and then converts back to 48000 for output"

    #5780
    MixMaker
    Member
    quote :

    From what I understand you won't want to resample or change the bit depth of the original files themselves since this stuff can usually be done by BAE or the player.

    That should be the case, but then why we must have to chose between 44100 or 48000 for input depending of what are we playing? If BAE does the proper conversion automatically, chosing the input sample rate would be redundant.

    quote :

    Also I could be wrong but I believe it “converts 48000 to input 44100 and then converts back to 48000 for output”

    I'm afraid it does so and according to my ears that extra step makes the audio suffer. I've found that a file converted to 44100 using HQ filters and dithering sounds way better than the orginal at 48000, but that's according me and I'm not really sure about it, that's why I'm asking what it really happens with BAE in this situation.

    #5781
    JesseG
    Member

    If you're playing 48kHz audio in Windows….. into a soundcard that's operating at 44kHz, then it's Windows which is going to do the sample rate conversion. This is completely independent of any software/hardware using the soundcard input/output.

    In Breakaway Audio Enhancer, the adaptive sample rate conversion is being done on the input side. The processing core will run at 44kHz or 48kHz depending on the selected OUTPUT sample rate. If you're outputting 48kHz from BAE into Wave or DirectSound, and you have Windows set to default that specific soundcard output to 44kHz, then Windows will do another sample rate conversion so that it matches.

    So basically, you need to make sure that not only Breakaway is using the correct settings, but that Windows settings for the soundcard input (record), and output (playback) match the sample rates you're trying to use.

    With one exception…. if you're using Kernel Streaming ("KS") to access the soundcard/s, it will over-ride and also bypass all of those parts of the Windows audio subsystems, and force the sample rates, bit depths, etc.

    I agree that there's better solutions to your problem than altering the media library itself.

    There's some pretty good sample rate conversion in some video players now that sound a lot better than Windows. Also, not all WIndows are created equal. Sample rate conversion in Windows was quite bad until Windows 7 Service Pack 2 (actually it was this hotpatch which fixed the problem originally), and it's been improving since then. It's still not as good as BAE's, so you may hear an improvement by using one vs the other. You certainly don't want both though. 🙂

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