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howtos:hardware:soundblaster-live-5.1 [2014/03/19 08:06 (UTC)]
wisedraco [Make a right soundcard as first (default)] 		howtos:hardware:soundblaster-live-5.1 [2014/03/19 12:07 (UTC)]
wisedraco [Problems with SoundFonts]
Line 82: Line 82:
 ===== Play files from CLI ===== ===== Play files from CLI =====
  
-For playing MIDI (.mid) files under Command Line Interface, you can use a aplaymidi command from slackware, or download and install pmidi from http://slackbuilds.org .+For playing MIDI (.mid) files under Command Line Interface, you can use a **aplaymidi** command from slackware, or download and install pmidi from http://slackbuilds.org .
 The both programms is very similar in use and syntax. The both programms is very similar in use and syntax.
 To play MIDI via aplaymidi: To play MIDI via aplaymidi:
Line 205: Line 205:
  
 SB Live! And Audigy Rx use similar DSP - emu10k based, and looks like have similar problems. SB Live! And Audigy Rx use similar DSP - emu10k based, and looks like have similar problems.
 +
 As i read, problem root is in that fact, a DSP use 31 bit in memory address instead of 32 bits - and it causes problem on linux x64 systems with more than 2 (3?) Gb RAM. As i read, problem root is in that fact, a DSP use 31 bit in memory address instead of 32 bits - and it causes problem on linux x64 systems with more than 2 (3?) Gb RAM.
 +
 I encounter that with 4 Gb RAM on Slackware64 14.1 - the symptoms is that, you cannot load soundfont larger than 16 Mb - asfxload on trying that writes: I encounter that with 4 Gb RAM on Slackware64 14.1 - the symptoms is that, you cannot load soundfont larger than 16 Mb - asfxload on trying that writes:
 +
 sfxload: no memory left sfxload: no memory left
 +
 while asfxload -M gives something like this: while asfxload -M gives something like this:
 +
 DRAM memory left = 115576 kB DRAM memory left = 115576 kB
-it means - about 100+ megabytes free ram. but you really cannot load even 30 Mb soundbank.+ 
 +it means - about 100+ megabytes free ram. But you really cannot load even 30 Mb soundbank.
  
 Ok, what is workaround? Ok, what is workaround?
-there is two: decrease memory size used by system at boot stage to 2 Gb  - use at lilo kernel parameter +There is two: decrease memory size used by system at boot stage to 2 Gb  - use at lilo kernel parameter 
  
 ''memmap=2048M\\$6144M'' ''memmap=2048M\\$6144M''
  
-other is more usable - change kernel source files and recompile kernel:+Other is more usable - change kernel source files and recompile kernel: 
 + 
 +go to /usr/src/~linux  - that is your linux source. 
  
 arch/x86/include/asm/dma.h arch/x86/include/asm/dma.h
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      after that need to recompile kernel. after that you get usable 1 Gb RAM for SB Live /Audigy Rx soundfonts.      after that need to recompile kernel. after that you get usable 1 Gb RAM for SB Live /Audigy Rx soundfonts.
-     if you want more - you need edit also +     
 +<note> if you want more - you need edit also</note> 
            
      sound/pci/emu10k1/emu10k1.c      sound/pci/emu10k1/emu10k1.c
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 </code>  </code> 
                  
-        after that you can use up to 2 Gb RAm for soundfonts loading.+        And then there is one else thing: default memory size for soundfonts is 128 Mb. If you want to increase it, you must create a sound.conf file in /etc/modprobe.d/  
 + 
 +write in file /etc/modprobe.d/sound.conf :         
 +<code bash> 
 + 
 +options snd-emu10k1  max_buffer_size=1750      
 +  
 +</code>  
 + 
 +where max_buffer_size reffers to amount of RAM dedicated to soundfonts, in megabytes. in that case its about 1.7 Gb. 
 + 
 +         
 +<note tip>    after that you can use up to 2 Gb RAM for soundfonts loading ( when define that in max_buffer_size, and do restart). 
 +</note>
                  
 ====== Useful Links: ====== ====== Useful Links: ======
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   * [[https://bugs.launchpad.net/ubuntu/+source/awesfx/+bug/183456]]   * [[https://bugs.launchpad.net/ubuntu/+source/awesfx/+bug/183456]]
   * [[https://github.com/koppi/renoise-refcards/wiki/HOWTO-setup-EMU10k-soundfont-DSP-on-Ubuntu-11.10]]   * [[https://github.com/koppi/renoise-refcards/wiki/HOWTO-setup-EMU10k-soundfont-DSP-on-Ubuntu-11.10]]
 +  * [[http://www.linuxquestions.org/questions/slackware-14/sound-problems-in-slackware64-14-1-xfce-4175497387/]]
  
 ====== Sources ====== ====== Sources ======
 Originally written by  --- //[[wiki:user:wisedraco|John Ciemgals]] 2013/02/07 04:50// Originally written by  --- //[[wiki:user:wisedraco|John Ciemgals]] 2013/02/07 04:50//
 +
 +Rewrited with used materials from "Links" and LinuxQuestions.org Slackware forum, especially user Drakeo help --- //[[wiki:user:wisedraco|John Ciemgals]] 2014/03/19 01:15//
  
 Edited by  --- //[[wiki:user:mfillpot|mfillpot]] Edited by  --- //[[wiki:user:mfillpot|mfillpot]]

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