64bit version bugs

[x3ad]

hey all, I started using 64bit version recently and have come across a number of bugs that I would like to report and ask for an advice.

1) if I start playing a song and then pause the song and leave the player for some time, then when I press PLAY again the song does not play but start skipping, e.g. fast-forward with no sound;

2) sometimes I start playing a selection of songs from a folder. During the playback I also run Normalization. If Normalization process has "fixed" gain of the current song and if I click NEXT then instead of going to the next song in the selection the player plays from the beginning of the list;

3) on some MP3 files playback stops, the resets then stops again then resets. Almost as if some kind of driver is crashing and reseting. On some files the playback does not restart, it just stops and I have to hit PLAY again to start the playback. The application runs fine, e.g. does not crash.

I am using the application on Shanling M6 21. I have enabled Hi-Res playback and have settings such as Audiophile quality, Bit-perfect playback and Follow the source frequency enabled. The version I am using is the latest available on Neutron website.

Has anyone come across similar behaviour? Could this be due to my settings? I used 32bit version on Shanling M6 with no issues at all.

TIA

[blaubär]

What happens if you reduce the sampling rate, e.g. by deactivating "Follow Source Frequency", "Oversampling" etc and not manually choosing a high value ?

[x3ad]

I was not choosing any high values - most of the time I use the default settings.

I just tried what you suggested - turning oversampling off and keeping "follow source freq" off but the behaviour is still the same - from time to time the app stops playing music. The app does not crash but music does not play. In fact, I discovered that keeping "Follow source freq" helps to reduce amounts the app is crashing.

I then thought that this might be somehow related to EQ so I tried with EQ on and off and the behaviour is still the same - will play some part of a song and then crash.

I seem to have discovered another bug.

Imagine I have the following structure:

Music/FolderA
Music/FolderB
Music/FolderC

Now, I add Folder(A/B/C) through "Sources" and listen to music (at this stage "Folders" section will show that there are 3 folders). Then I add "Music" folder and later remove "Music" folder from the media library. At this stage Folder(A/B/C) are still listed in "Sources" but not listed in "Folders" anymore (however, "Folders" will still report as if there are 3 folders available in the media library). In order to listen to music from these folders again I need to remove Folder(A/B/C) from the media library and re-add through "Sources". If you wonder why did I have to add/remove "Music" folder - there was a track in "Music" which I needed to listen to but since individual files in folders are not being discovered unless I add the folders in "Sources" I ended up adding the entire "Music" folder.

Does the app dump logs somewhere? Is there a way to run the app with some option turned on in a config file so that I can collect some logs?

[blaubär]

Okay, then it is not a problem of CPU overload. Which download did you install ?
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On Android the directory for Neutron is /NeutronMP. If you create a subdirectory /NeutronMP/Logs then the app will produce logs there.

20211128_143232.jpg (24.86 KiB) Viewed 1860 times

But it won't write much - feel free to ask neutronmp@gmail.com for a test apk with extended logging.
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As to the sources: yes, that's a known effect, also see here

Please note: sources mustn't overlap. If you create a source that contains files already included by another source, Neutron will show errors.

[x3ad]

Which download did you install ? - Generic Neutron Music Player (ARM64)

feel free to ask neutronmp@gmail.com for a test apk with extended logging - perfect, will do.

thanks for elaborating on sources.

Just to let you know - I have reset audio hardware settings to their defaults. I then reviewed FAQ page on Neutron website once again. I reviewed https://neutroncode.com/faq/38-bit-perfect-output and paid attention to the following line

To achieve Bit-Perfect output you will need to switch off all DSP effects (check DSP Effects section in Neutron's settings) and Dithering.

I have had dithering turned on. I have switched dithering off and enabled "Follow source frequency". Since I had dithering switched off I have not had a single crash on the same track that was crashing previously.

I will keep an eye on performance of the app and will let you know of any more issues.

Many thanks

[blaubär]

Good luck !

( as long as you don't use any DSP you won't need 64-bit-processing or Audiophile Quality Resampling anyway )

[x3ad]

I am afraid I spoke too soon - the playback is still crashing.

I have disabled "Follow source frequency" since I am using DSP (EQ). Both "Follow Source Freq" and "Oversampling" settings are off, Dithering is off, Frequency is set to Default and this gives me sample rate of 384kHz. File I am listening to is 320kbps MP3 (not VBR).

At the time when the crash has happened I was playing music and running normalization process at the same time. I considered that audio might have crashed because of CPU overload, so when the normalization process finished I have played the same song from start. Audio is still crashing and crashes are very intermittent.

Are there any other settings that might be involved that I need to have on/off?

[blaubär]

You could manually set the sampling rate ( Audia Hardware > Frequency ) to a lower value - your 320 kbps mp3 probably has a sampling rate of 44.1 kHz or 48 kHz - and try that, then Neutron won't have to resample. Of course, you'd get the same effect when you activate "Follow Source Frequency" ( and haven't activated Oversampling ).

sampling-rate-mp3.jpg (44.29 KiB) Viewed 1805 times

[x3ad]

I will try that but also would like to mention that yesterday at some point I could not even get the app to play a single song - audio was crashing as soon as I press PLAY button. I am under impression that 64bit processing might be the issue - I ended up disabling the setting in order to listen to some music. If I could fetch some logs would be great - I emailed for the test apk but haven't got one yet