Thank you, I have tried long filters and there is no error message, so that part is fine now.
I tried all the output formats in the list and a lot of input format as well modifying brutefir.conf.tmpl, several reinstall, more restarts, but no output music at all.
My DAC is rare (Okto Research Dac8 Stereo) but works well with Volumio without BruteFIR.
One attempt was to simplify config file removing VoBAF part and connect the only one filter setting to the output;
During last weeks I spent some time to figure out why no music at all with FIR filters from earlier Volumio and I found current version of Volumio BruteFIR implementation does not support usage of filter lengths over 262144. Old versions, last I installed a year ago supported longest filters and in general the BruteFIR supports very long filters, I don’t know about restrictions there. Could you check what can be a problem in Volumio implementation, please ? I tried to set up number of partitions to 16 but it did not help.
Hi @Dudu
Thank you and Merry Christmas!
The plugin supports filter length 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288
There is a check if it matches one of this length.
How are generated yours filters?
A very long filter introduces a long delay.
Please check the 524288. That is not supported. No warning or error message but no sound on output. My old filters from a one year old Volumio are 524288 taps, so 1.048.576 long filters. Currently BruteFIR plays only four times shortest filters.
Yes, long filters causes bigger delay, but it is important only at the start of the first track. I played lot with filters and it seems short filters has audible artifact especially at bad bass response, for example drums has no real drum instrument sound in the stereo space, so I use as long filters as I can use with RPI4.
I use RePhase and tested wav->pcm and float *.txt filters as well, both works well till 262144 only but not for 524288 or 1.048.576
First I thought the new DAC is the problem since there was no distorted sound on the output, but DAC works well.
@balbuze Hi, as I am running with my Hifi Berry Amp (China Copy “Inno HIFI AMP HAT”) in the same situation as wmoecke in 2018 maybe you have a glue.
I am using the latest volumio version 2.873 and your latest plugin. Hardware detection works perfectly. But when it comes to the first time playing, softvol says “NaN” but in reality, setting is at 100% and I have no hard ware volume. However which value I set (e.g. 5Vol%) → 100% real speaker vol.
I can make it work with a lot of playing that soft vol is adjustable in reality but when it comes to reboot all is gone and again softvol says “NaN” but with 100% speaker volume and my neighbours will knock when I do testing to often
Maybe there is a solution?
Kind Regards Korniman
Hello
This a complicated problem with Volumio 2.xxx.
One thing, is to never change mixer after the plugin is enabled. If you did it, try to reset the plugin and disable it. Reboot. Set volume mixer properly. When ok enable the plugin…
But I suggest you to test Volumio buster with the updated version of the plugin using Camilladsp. : https://www.github.com/balbuze/volumio-plugins/tree/alsa_modular/plugins%2Faudio_interface%2FDsp4Volumio
@balbuze, thank you for your feedback. I carefully checked the procedure. Now I have no sound at all with brutefir plugin, maybe MPD OLED will have some impact on brutefir yet. How ever, I will wait until Volumio 3 is official released and will test it when plugins are ready vor volumio 3 too, as I am using some of them.
I’ve had trouble to get Brutefir working. After some testing I seem to have narrowed down the error to the filters i generate inside of the plugin.
Rpi4, latest Volumio 2, Latest Brutefir for Volumio 2
Measurements made in REW and impulse exported as described in wiki.
Create filters using the plugin
If I activate a demo filter, all goes as expected. It passes the clipping test and i have sound afterwards.
Select my generated filter, clipping test dialog pops up, i click test, and immediately get an error “Hummmm is Brutefir running? Check your configuration”
I’ve tried re-generating the filters (although from the same measurement impluse) but it is still the same. I find some stuff that looks bad in the log:
May 13 07:38:10 volumio volumio[21221]: BruteFIR v1.0m (November 2013) (c) Anders Torger
May 13 07:38:10 volumio systemd[1]: Started brutefir Daemon.
May 13 07:38:10 volumio systemd[1]: Starting brutefir Daemon...
May 13 07:38:10 volumio systemd[1]: Stopping brutefir Daemon...
May 13 07:38:10 volumio systemd[1]: brutefir.service holdoff time over, scheduling restart.
May 13 07:38:09 volumio systemd[1]: Unit brutefir.service entered failed state.
May 13 07:38:09 volumio systemd[1]: brutefir.service: main process exited, code=exited, status=1/FAILURE
May 13 07:38:09 volumio volumio[21218]: Failed to preprocess coefficients in file /data/INTERNAL/Dsp/filters/newleft-soft-44.1kHz-HK5.pcm.
May 13 07:38:09 volumio volumio[21218]: Loading 16 coefficient sets...NaN or Inf value among coefficients.
May 13 07:38:09 volumio volumio[21218]: Creating 4 FFTW plans of size 16384...finished.
May 13 07:38:09 volumio volumio[21218]: Internal resolution is 64 bit floating point.
May 13 07:38:09 volumio volumio[21218]: BruteFIR v1.0m (November 2013) (c) Anders Torger
Any idea what could be causing this error in my filters?
What happens if you use demo impulses?
I generated a filter with your impulse but in the buster version using Camilladsp. It works.
I do not work anymore on 2.xx Volumio…
The same things happen if i generate filter from the demo impulses. Brutefir fails to start after. Maybe I should move to Volumio3 beta then, or try a reflash of version 2. Does Spotify Connect and Tidal Connect work with CamillaDS in V3?
I can manually create and export filters from REW, that works. So, somehow it seems that the failing step in my specific system is only the automatic filter creation. Maybe I have installed something that interferes with it.
