Osmc + Kali reclocker white noise

Help and Support Raspberry Pi
1

Hi everyone this is my first post!
I’ve two DACs for my raspberry a hifiberry DAC+ and an Allo 2.1 + Kali reclocker. Both DACs work fine alone but if I use Kali the output is just white noise. I also tried to power it alone removing the jumper disabling it passing power to the raspberry but the result is the same…

Is there any setting I’m missing?

2

Probably it’s just an upsampling issue… is it possible to upsample the audio to 32bit depth? i’m searching for info on the alsa-conf file but i find it rather confusing…

UPDATE:
So i was able to play 16bit contents fine via raspify on the same machine, kodi seems to send 24bit audio and this is causing the white noise, so i need to upsample kodi output to 32bit, i’m on kodi 18 alpha build and i have no output option, is there any configuration file to tweak?

3

You might need an asound.conf for this device.

4

i’m stuck here… this is the asound.conf i’ve come up to:

pcm.dmixed {
type asym
playback.pcm {
# See plugin:dmix at ALSA project - the C library reference: PCM (digital audio) plugins
type dmix

            # Don't block other users, e.g. the Timidity midi-player daemon
            # http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html
            ipc_key_add_uid true

            ipc_key 5678293
            ipc_perm 0660
            ipc_gid audio

            slave {
                    # 2 for stereo, 6 for surround51, 8 for surround71
                    channels 2
                    pcm {
                            format S32_LE
                            #format S16_LE

                            #rate 44100
                            rate 96000

                            # http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html
                            nonblock true

                            type hw
                            card 0
                            device 0
                            subdevice 0
                    }

                    period_size 1024

                    # If too large, use CONFIG_SND_HDA_PREALLOC_SIZE=2048
                    buffer_size 16384
            }
    }
    capture.pcm "hw:0"

}

pcm.!default{
type plug
slave.pcm “device”
}

pcm.!surround40 {
type plug
slave.pcm “dmixed”
route_policy duplicate
}

pcm.!surround51 {
type plug
slave.pcm “dmixed”
}

sound from raspotify get correctly formatted to S32_LE but Kodi still use S24_LE, there is obviously something wrong but i can’t understand whic device is kodi using, log doesn’t show any audio output.