Popper72

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Viewing 6 posts - 1 through 6 (of 6 total)
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  • 20. November 2018 at 13:37 #42169

    Hello Heiner,

    Thanks for the swift answer.
    I checked the last line of the boot sequence and there was an „Undervoltage detected“ message. So I changed the power source and now it works.
    So Raspberry Pi 3 B+ seems to consume more power or at least to be be more stringent on power detection. My old power source works good with Pi 3 and previous.

    Thanks again for your support

    5. Januar 2017 at 10:35 #25550

    Hello,

    I have the same issue with ALAC.
    I am coming from the thread below.
    Sabre Thread
    As you will see there is a work around with the audio player option
    -e alac
    But this is only a transcoding from alac to flac and I am not sure of the conversion quality since even after they are transcoded, I hear sporadic crackling. Difficult to compare when native alac decoder does not work properly.
    My setup can be found at:
    My setup

    @max2play team, could it be that the LMS 7.9 is not properly compiled or missing libraries?
    A quick google scan shows similar problems, but no solutions recently

    Please help

    4. Januar 2017 at 12:09 #25468

    Hello and Happy new year to all of you.

    Dear Heiner and JCU,

    Sorry for this very late reply, but was out for business early December, then holidays ….
    Here is where I stand (I hope this helps someone else).
    I followed Heiner advice and chose the Sabre DAC under the Raspberry Settings but chose the “hw:CARD=sndrpihifiberry” instead of “sysdefault snd_hifiberry_dac” which according to my ears has a better sound.
    Crackling when switching from normal def files to hi-def files is still there, but not horrible. Any advice to completely eliminate it would be appreciated
    Then I had an issue with ALAC files which I figured was the native squeezebox server decoder from this forum and some others and use the parameter

    -e alsa

    This I think transcodes to flac
    The issue is that the player does not seem to recognize the end of the file and keeps playing at the end with no sound, or the sound would stop after few seconds

    Is it really that the ALAC decoder from squeezebox server is that bad?

    Btw, it only happens with files I generated by ripping my CD collection to ALAC using dbPowerAmp and not with the files bought in apple store
    I do not feel like transcoding my whole collection to flac (30 000+ files) so any help on using properly the native decoder is appreciated too.

    SO I AM HAPPY that I have an acceptable and stable Max2Play set up !! Thanks

    My next step is to see if I can transfer the Volume control to my Wyred4Sound DAC2 using the USB connection as opposed as the I2S over GPIO.
    Any thoughts on this?

    Thanks

    1. Dezember 2016 at 20:58 #24475

    Hi JCU,

    Thanks for all your useful hints. I have also tried several platforms and HW configurations. From MPD to PiCore.

    I am really happy that M2P will offer support for Audiophonics !!!
    As for my experience with M2P … hummm how to start?

    Well let’s put it this way, I was seduced by the capabilities that seem superior to piCore, especially the integration of Kodi as I also use it.

    Unfortunately despite your help I need to go back to piCore, before explaining why, Let me describe my set up.

    I use a Wyred4Sound DAC2 equipped with 9018 ESS Sabre DAC a 9018 ESS Sabre DAC

    https://wyred4sound.com/products/dacs/dac-2-series

    with input of I2S over GPIO using a HDMI connector and cable. I use a HDMI output module bought at Audiophonics

    http://www.audiophonics.fr/en/interfaces/audio-gd-diy-kit-i2s-to-hdmi-output-module-p-9347.html

    The set ups is similar to:

    Forums

    So ….

    With piCore the play is smooth using Generic I2S and hw:CARD=sndrpihifiberry
    Hi resolution files play perfect and the whole thing is stable. I use piCore 2.6 since the 3.02 version produces a horrible crackling when switching from 44.1 KHz to 96KHz.

    With your help I managed to get the sound out but could not manage to transfer volume control to the DAC wih -o hw:0 –V Digital

    It took me a while to figure out the output of a mixer which was:

    Simple mixer control ‚PCM‘,0
    Capabilities: pvolume pvolume-joined pswitch pswitch-joined
    Playback channels: Mono
    Limits: Playback -10239 – 400
    Mono: Playback 100 [97%] [1.00dB] [on]

    Then I realized that I had to replace Digital for PCM and tried -o hw:0 –V PCM … but did not work

    I tried the option on LMS -> Settings -> player -> Audio -> Volume Control -> Output level is fixed at 100%
    … and it worked !! (I wonder what the difference is with the transfer with –o hw:0 –V Digital

    Then I tried to play Hi-Res files and …. After a few seconds and horrible crackling, the play back simply stops >:-(((

    No way to get it back. The output of a mixer was

    Simple mixer control ‚PCM‘,0
    Capabilities: pvolume pvolume-joined pswitch pswitch-joined
    Playback channels: Mono
    Limits: Playback -10239 – 400
    Mono: Playback -25 [96%] [-0.25dB] [on]

    The difference is the Mono: line where I figured that 96% is the volume level but still do not know that the other mean

    I then reinstalled from scratch but the problem is still there, no Hi-Res play

    Bottom line …. I am back to piCore 2.6 with a license M2P I do not use

    The output or piCore amixer is

    Simple mixer control ‚PCM‘,0
    Capabilities: pvolume pvolume-joined pswitch pswitch-joined
    Playback channels: Mono
    Limits: Playback -10239 – 400
    Mono: Playback -2000 [77%] [-20.00dB] [on]

    Where the Mono Line is completely different

    @m2p team: It would be great if there would be a I2S generic support and help to figure out the best parameters

    29. November 2016 at 23:24 #24361

    Hi JCU,

    Thanks a lot for the tip!! It works perfectly!! ;-D

    I could not set the command line option because I have no idea how to determine the card’s slot or the sound card’s mixer device as per the instructions in the link. Any idea how to know that?

    I agree with your request to the @ Max2Play team to include support for Sabre

    27. November 2016 at 10:53 #24279

    Hello Heiner,

    I just changed from piCoreplayer to M2P and using the licensed version 2.34
    I have a similar issue.
    I am using Wyred4Sound dac2 with Sabre and i2s over GPIO.
    It works perfectly with piCoreplayer using „I2S Audio generic“ and Squeezelite settings
    – hw:CARD=sndrpihifiberry
    – ALSA setting: 80 : 4

    I tried to use the HiFiBerry DAC+ without success, the option hw:CARD=sndrpihifiberry does not apear

    Any chance to implement a generic i2s?
    Otherwise need to go back to pCP :-(((

Viewing 6 posts - 1 through 6 (of 6 total)