Audio file getting bruised.

    Hi, I am experiencing a weird problem with High and standard resolution audio file, they will play over and over perfectly fine until randomly a "scratch"will be heard, once it happens the scratches can be heard over again at the same time.

    The interesting part is that the file became corrupted, I have listen to the same audio file on a different support with the same annoying noises while the original file from another source on laptop plays perfectly.
    What I use:
    Raspberry pi 4 with DAC+
    Libreelec latest version
    Music library stocked on a USB memory flash drive.

    Thank you.

    Funny issue, I never heard about that. Like a broken vinyl record. ^^

    Playback is a read-only process, so LE can't be the cause. I think your USB drive has reached end-of-life.

    I have all sorts of music with different codec and type. It is not discriminating any type of audio!

    The played track:

    Format : FLAC
    Format/Info :
    Free Lossless Audio Codec
    File size : 111 MiB
    Duration : 5 min 23 s
    Overall bit rate mode : Variable
    Overall bit rate : 2 862 kb/s    		Audio Format :FLAC
    Format/Info : Free Lossless Audio Codec
    Duration :
    5 min 23 s
    Bit rate mode :
    Variable
    Bit rate : 2 856 kb/s
    Channel(s) : 2 channels
    Channel layout : L R
    		Sampling rate : 96.0 kHz
    Bit depth : 24 bits
    Compression mode : Lossless
    Stream size : 110 MiB (100%)

    Edited 2 times, last by Sardonic (October 9, 2024 at 9:17 PM).

    It's scary that a read-only access damages files. I assume a lot of buffering is going on in the background, because audio is large, and has a lossless codec.

    • format your USB drive as EXT4

    • if it doesn't work, create a swap file (I suggest to create it at the same USB drive, swap file size: twice RPi RAM size)

      [How to] Enable swapfile on LibreELEC

    Both are non-native Linux file systems. Can you prepare a thumb drive with ext4 and test again? If you have no Linux to fill the stick with content directly, maybe you can copy from your laptop via network to it.

    Note: All file systems on external drives (such as SD cards, USB sticks, etc.) are vulnerable during cached writes, so you should make sure that you do not remove the drive from the running system without taking special measures. For the test with ext4, I would recommend not unplugging the drive until the system has shut down properly.

    Quote from Da Flex

    It's scary that a read-only access damages files. I assume a lot of buffering is going on in the background, because audio is large, and has a lossless codec.

    • format your USB drive as EXT4

    • if it doesn't work, create a swap file (I suggest to create it at the same USB drive, swap file size: twice RPi RAM size)

      [How to] Enable swapfile on LibreELEC

    Thanks, I will try that. Just for the info It happen also with light mp3 to heavy DST and WAV audio file.