Moode Audio Player for Raspberry Pi

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#16,122
Michelag said:
So, installed (clean install) the last version.
I am keeping an old sdcard with version 8.

Lineup sees an Amanero 384 with a diy AD1862 DAC.

I get always cracks and pops in sound, they are slightly less with v8, unlistenable with v9.

When the USB is connected to the phone, it works flawlessly, so I tend to exclude an issue by the Amanero/DAC side.

Configuration, it has Amanero 384 combo as output device.
Named i2s device is empty, I tried all the 3 possible options for i2s dac (generic, hifiberry, the other french one), same situation.
Other parameters are just out of the installation, so plain vanilla. No DSP, no Camilla, anything.
What do I do wrong?

PS.: am I in the right thread?

Thanks
Click to expand...

Hello!

I recommend you to update the firmware of your USB transport. I have solved many of my problems with my Amanero with the latest firmware.

Regards!
 
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#16,123
Hi,

moOde 9.3.3 is available in the Media Player OS section of the Raspberry Pi Imager or as a direct download at https://moodeaudio.org. Visit the Forum for more information https://moodeaudio.org/forum/showthread.php?tid=7685&pid=63532#pid63532

moode-r900-logotype-bg.png
 
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#16,124
Hi,

I’m using Moode audio player on a Raspberry Pi to play audio through two USB devices: headphones (card 3: Device_1) for the full spectrum and a subwoofer (card 0: Device) for low frequencies (20–100Hz) in a meditation lounge setup. The audio source is a NAS on a Mac. My goal is simultaneous playback: headphones in stereo, subwoofer in mono with low-pass filtering. I have configured the mpd.conf file to setup audio ouputs for both devices. Now I need to apply a lowpass filter to the subwoofer device. I tried using MDP's "ffmpeg" as a lowpass filter...

mpd.conf setup:
Code: 
filter {
    plugin "ffmpeg"
    name "lowpass"
    graph "lowpass=f=100"
}

audio_output {
    type        "alsa"
    name        "Headphones"
    device      "hw:3,0"
    mixer_type  "software"
    enabled     "yes"
}

audio_output {
    type        "alsa"
    name        "Subwoofer"
    device      "hw:0,0"
    mixer_type  "software"
    enabled     "yes"
    filters     "lowpass"
}

Restarted MPD via sudo systemctl restart mpd and checked the status via journalctl -u mpd | tail -n 20 and i get the following error:
Code: 
westonmoode mpd[14952]: 2025-05-09T01:06:36 output: Failed to initialize filter chain for "Subwoofer": No such filter plugin: ffmpeg

Why is it saying there's no "ffmpeg" filter plugin? Isn't this filter built into MPD?
 
#16,125
Following up my latest post..
I've done some research and now understand that the MPD compilation that Moode OS uses does not enable FFmpeg as a filter, but only as a decoder. So there's no recourse on that other than asking Tim to add it as a compile-time option, which I'm not going to do because I'm sure there's good reason for it.

Nonetheless, I've figured out that I can add a lowpass filter to the subwoofer via CamillaDSP, and have successfully done so. The only problem that remains is that because I have two separate usb devices (headphones & sub) and Moode only allows me to select one output device in the WebUI, I have to manually add the headphones in the mpd.conf file. If this is ignorance, please call me out.
If the power goes out and the mpd.conf file is reset via reboot, the heaphones wont receive output.

If there isn't another way to have 2 audio_ouput devices set in the WebUI (or by other means without losing config) then I can think of two solutions. Either a surge-protector with a power bank to keep the Pi alive, or get a splitter and have both heaphones & subwoofers (there's two subs) hooked up to it, an learn how to configure Camilla for that setup.

I really do enjoy this stuff. Moode is really fun to play with and I look forward to supporting this open source project (via funds & promotion cause my php is lacking XP )
 
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