Logitechmediaserver playback with BrutefirDRC plugin

[Klaas Reineke]

Hi there,

after a friend of mine did show me audiolense an created filters for me I am totally blown away from the new sound experience. Because of this I would like to advertise or hint at nice playback solution that can be used with audiolense filters. You can use the LogitechMediaServer 7.7.x with BrutefirDRC version 4.0.x for the DRC with Audiolense. After switching from DRC (the freeware version) to audiolense I had to update the plugin to support Audiolense filters better. The plugin supports now:

• automatic filter selection for the correct sampling rate.
• replay gain without loose of bit depth/attenuation.
• loudness aka Fletcher Munson or ISO 226 (using sox build in loudness effect).

To convert a Audiolense filter to use it with brutefir convolver you can use sox:

 sox audiolense_filter.wav -e floating-point -t raw brutefir_left_channel_filter.pcm remix 1

 sox audiolense_filter.wav -e floating-point -t raw brutefir_right_channel_filter.pcm remix 2

The setup of LogitechMediaServer with brutefir and the BrutefirDrc plugin is a bit of hassle, but it is a great option for non windows user like myself and all the software is completely free! LMS is a decent media server and with "squeezelite" it supports playback of samplerates up to 192000. I use "squeezelite" with a nice USB Dac and can play all files from 44100 to 96000 without any issue.

Regards Klaas

[Olav Sunde]

Hi Klaas,
this is very good work. In particular, the ability to use the Audiolense created filter sample rates similar to how JRiver 18 works is stellar. Logic within the convolver plugin will search for predefined filters for a given sample rate and only use it's own resampling if none are found.

I believe this may be a good time to ask Bernt if he can program a "Save as Brutefir compatible.." in a future version of Audiolense.

Olav

[Bernt Ronningsbakk]

Nice work Klaas!

 

Thanks for sharing.

 

Kind regards,

 

Bernt

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[Peter Hsieh]

Dear All,

I'd like to revive this thread if you don't mind.  I think previously people were installing BrutefirDrc onto Vortebox with Logitech Media Server (LMS.)  That was quite an endeavor so I didn't try as I know zero about Linux.

However, I recently bought both a Qnap and a Synology NAS, both of them can have LMS installed.   I wonder if someone can point to a web link, or help me with a step by step installation procedure.  I tried to search on the web for about 5 hours last night, could not find a complete solution.

Much appreciated in advance!

Peter

[Bernt Rønningsbakk]

Hi Jean-Pierre,

 

The waveheader in Audiolense is 8 byte longer than minimum requirement. This is 100% inside spec, but short cuts is widespread in software that reads wave files. I suspect that SoX doesn’t read the header file properly, but just jumps down to the spot where the data stream usually starts.

 

Anyway, you don’t need to use SoX here. You can tell Brutefir where the data starts. The data chunk is at position 72, the length of the data section at position 76 and the first audio data is at position 80. Channels are interleaved.

 

You need to inform Brutefir of where the data starts, perhaps about channel count and interleaved too. I think what you need to change is to insert the number 80 and channel count. You should find the rest of the info you need in the Brutefir documentation.

 

Mvh,

Bernt

 

From: audio...@googlegroups.com [mailto:audio...@googlegroups.com] On Behalf Of Guibert Jean Pierre
Sent: onsdag 16. desember 2015 10.54
To: Audiolense User Forum
Subject: [audiolense] Re: Logitechmediaserver playback with BrutefirDRC plugin

 

Hi,

I would like to use BruteFIR plugin in the latest Daphile linux distro but i use DRC Audiolense software.

I installed SoX and tried to convert my wav audiolense filter with your command replacing "audiolense_filter.wav" by my audiolense file path but i have this error message :
                                             sox WARN wav: wave header missing extended part of fmt chunk

I am not a programmer, did i do something wrong ? what can i do ?

Thank you for helping
Best regards
Jean-Pierre
France

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[Jean-Pierre GUIBERT]

Hi Bernt,

Thanks a lot for answering.

In fact, solution is more simple, there is two convolution filters channels in Daphile BruteFIR plugin for left and rigth channels and no need to have separate left and rigth channels audiolense filters.

Loading the same stéréo Audiolense wave filter for each channels is perfect.

Best regards.

Jean-pierre

[Bernt Rønningsbakk]

Sounds like good news.

 

Mvh,

Bernt

[Olav Sunde]

Jean-Pierre

can you please detail how you use the Audiolense file twice in your Brutefir config? I have used Brutefir with AL filters for many years, but always with one file per channel: i.e. splitting the AL stereo filter to two separate channel files. Using the original AL file twice and having Brutefir using the appropriate channel seems much easier.

Best regards
Olav Sunde

[Jean Beauve]

Bonsoir Jean-Pierre,

Comment avez-vous installer BruteFIR sur Daphile.

Comment faites-vous pour utiliser le paramétrer pour qu'il utilise le fichier de correction wav obtenu avec Audiolense ?

Merci