Equalizer

[jensulrik]

Hi

Using an equalizer together with Minimserer could solve som heavy
bas-resonance problmes in my listening room.
I have just updated server (on QNAP NAS) and Minimwatch
I have installed Minimstreamer package.
But I get this error when applying the command line suggested in this
thread (image attached)

[jaaptina]

Hi Jensulrik,

My Sytem tab looks like this. I don't know anymore why I changed the stream.converter setting. Maybe if you find out where ffmpeg is located on your NAS en changing the setting accordingly helps.

[simoncn]

(22-08-2015 20:09)jensulrik Wrote:  Hi

Using an equalizer together with Minimserer could solve som heavy
bas-resonance problmes in my listening room.
I have just updated server (on QNAP NAS) and Minimwatch
I have installed Minimstreamer package.
But I get this error when applying the command line suggested in this
thread (image attached)

In the stream.converter property, replace the default value of ffmpeg with /mnt/ext/opt/medialibrary/bin/ffmpeg. This is a newer version of ffmpeg and it should solve the problem.

[jensulrik]

thank you - no error msg. now !
I dont hear a difference though when listening to my 'bass-sweep'
test. Ill keep trying :-)

Regards
Jens

[simoncn]

(22-08-2015 21:38)jaaptina Wrote:  My Sytem tab looks like this. I don't know anymore why I changed the stream.converter setting.

On Synology, the default ffmpeg is the right one to use. You can specify the full path (as you have done) but you will still get the same ffmpeg file.

[jensulrik]

(23-08-2015 16:06)simoncn Wrote:  

(22-08-2015 20:09)jensulrik Wrote:  Hi

Using an equalizer together with Minimserer could solve som heavy
bas-resonance problmes in my listening room.
I have just updated server (on QNAP NAS) and Minimwatch
I have installed Minimstreamer package.
But I get this error when applying the command line suggested in this
thread (image attached)

In the stream.converter property, replace the default value of ffmpeg with /mnt/ext/opt/medialibrary/bin/ffmpeg. This is a newer version of ffmpeg and it should solve the problem.

hmm - as I said , the error message is gone but having tried all kinds of options: 'lowpass', 'highpass', 'bass' besides 'equalizer' - nothing works.
Can it be that I need to install something additional on my QNAP ?

regards
Jens ULrik

[simoncn]

(23-08-2015 18:52)jensulrik Wrote:  hmm - as I said , the error message is gone but having tried all kinds of options: 'lowpass', 'highpass', 'bass' besides 'equalizer' - nothing works.
Can it be that I need to install something additional on my QNAP ?

regards
Jens ULrik

You haven't specified any transcoding settings in the stream.transcode property. MinimStreamer will only call ffmpeg if you are doing transcoding for certain combinations of input type and output type. What type of files are you playing (e.g., FLAC, MP3, M4A, AIFF, etc.)?

[jensulrik]

(23-08-2015 19:21)simoncn Wrote:  

(23-08-2015 18:52)jensulrik Wrote:  hmm - as I said , the error message is gone but having tried all kinds of options: 'lowpass', 'highpass', 'bass' besides 'equalizer' - nothing works.
Can it be that I need to install something additional on my QNAP ?

regards
Jens ULrik

You haven't specified any transcoding settings in the stream.transcode property. MinimStreamer will only call ffmpeg if you are doing transcoding for certain combinations of input type and output type. What type of files are you playing (e.g., FLAC, MP3, M4A, AIFF, etc.)?

I am playing FLAC files - to my Cyrus StreamX2

regards
Jens Ulrik

[simoncn]

(24-08-2015 06:20)jensulrik Wrote:  I am playing FLAC files - to my Cyrus StreamX2

regards
Jens Ulrik

You can transcode FLAC files to WAV using ffmpeg as the converter by adding one of the following to stream.transcode:

flac:wav;44
flac:wav;88
flac:wav;96
flac:wav;192

where the last value (44, 88, 96 or 192) is the output sample rate. If possible, you should choose this value to match the input sample rate of your files. After adding this property value, restart MinimServer.

This approach should be good enough for testing that the equalizer is working but it isn't ideal if you are playing files with a mixture of input sample rates. I will provide a better solution in a future update.

[jensulrik]

(24-08-2015 10:08)simoncn Wrote:  

(24-08-2015 06:20)jensulrik Wrote:  I am playing FLAC files - to my Cyrus StreamX2

regards
Jens Ulrik

You can transcode FLAC files to WAV using ffmpeg as the converter by adding one of the following to stream.transcode:

flac:wav;44
flac:wav;88
flac:wav;96
flac:wav;192

where the last value (44, 88, 96 or 192) is the output sample rate. If possible, you should choose this value to match the input sample rate of your files. After adding this property value, restart MinimServer.

This approach should be good enough for testing that the equalizer is working but it isn't ideal if you are playing files with a mixture of input sample rates. I will provide a better solution in a future update.

It Works !
Back from work i tried this: 'convOut=-af highpass=f=100' and it works like a charm :-)
MP3 files also plays - havent tested wether they are affected by the ffmpeg.

Will ffmpeg affect sound quality ?

Thought I should tell you that I recently invested in a couple of
rather expensive Audiovector Sr3 and because of the bass resonance
I had to disable the lower bass unit (it works like a 'slave' unit now ...)
but now I can promote the unit back to active status and start experimenting with the ffmpeg - thanks very much for the help !

regards
Jens Ulrik