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  1. #1
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    Weird frequency response results

    I tried using Right Mark Audio Analyzer to measure the frequency response of my Pi-DAC source with some confusing results. I used a Behringer UFO202 audio interface which is cheap but should do the job. The first graph is a loopback test to show the response of the UFO202. The second graph is Moode player and the third is piCorePlayer both via a Topping E30 DAC. Both players are showing a roll off of-3.5dB at 20kHz. Where is that roll off coming from?
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  2. #2
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    I figured it out. It was the filter I was using on the DAC

    Sent from my Pixel 3a using Tapatalk

  3. #3
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    Quote Originally Posted by slartibartfast View Post
    I figured it out. It was the filter I was using on the DAC

    Sent from my Pixel 3a using Tapatalk
    was it #4 ?

    ronnie

  4. #4
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    Quote Originally Posted by Man in a van View Post
    was it #4 ?

    ronnie
    It certainly was . I am still non the wiser why Moode sounds different to piCorePlayer.

    Sent from my Pixel 3a using Tapatalk

  5. #5
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    Quote Originally Posted by slartibartfast View Post
    It certainly was . I am still non the wiser why Moode sounds different to piCorePlayer.

    Sent from my Pixel 3a using Tapatalk
    It's mpd v squeeze (or squeezelite)

    There's lots of stuff on't 'tinterweb

    ronnie

  6. #6
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    Quote Originally Posted by Man in a van View Post
    It's mpd v squeeze (or squeezelite)

    There's lots of stuff on't 'tinterweb

    ronnie
    There is loads of stuff but no reason. AudioDiffmaker sees a difference but I have no idea why.

    Edit. Then again AudioDiffmaker sees a difference between two recordings of the same player
    Sent from my Pixel 3a using Tapatalk
    Last edited by slartibartfast; 2021-08-14 at 14:09.

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