Bernard wrote: I need about 20 meters of cable to go around walls and stairs
The standard (professional) solution is "balanced cables" with XLR or TRS connectorshttp://en.wikipedia.org/wiki/Balanced_audio
The good ones are not cheap. You may find them here: http://www.thomann.de/gb/index.html
If you do not know what they are, you may ask Johnny on Audacity mailing list.
Notice that your "professional" devices (souncard, amplifiers, speakers, headphones, microphones, or else) should have balanced inputs and/or outputs. Otherwise, "balanced cables" do no make much sense.
It seems that the ancient LynxTwo souncard (24bit 192kHz record/playback) has XLR connectors http://ixbtlabs.com/articles2/lynxtwo/
There is a "closed source" OSS4 driver for LynxTwo http://manuals.opensound.com/usersguide/lynxtwo.html
You can get it for free here: http://www.opensound.com/download.cgi
ah Cables KL20FM25 Lautsprecherkabel [Loudspeaker Cable] Neutrik XLR male auf XLR female 20 m grauhttp://www.amazon.de/Cables-KL20FM25-La ... 669&sr=1-2
In a word, the git-version of OSS4 plugin for Audacious has "exclusive mode" which allows to "disable redirection to virtual mixer engines and sample rate/format conversions", but it seems to be impossible to disable format conversion in Audacious http://en.wikipedia.org/wiki/Lossy_data_conversion
There is also a magic resampler for Audacious. Although the deaf may not hear the difference, it might be interesting to try. If you have questions, you may ask Michal: viewtopic.php?f=3&t=3834
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$ yaourt audacious git
2 aur/audacious-git 20111108-1 (7)
Lightweight, GTK-based advanced audio player focused on audio quality.
3 aur/audacious-plugins-git 20111112-1 (5)
Plugins for Audacious
==> Enter n° of packages to be installed (ex: 1 2 3 or 1-3)
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./configure --prefix=/usr --enable-amidiplug --disable-adplug --disable-pulse --disable-alsa --disable-amidiplug-alsa --disable-resample
The problem is that Audacious is fundamentally wrong by design and, therefore, it does not allow to play an audio file as is, without lossy conversions. It is said to be "GTK-based advanced audio player focused on audio quality". Notice that the word "advanced" means "crap" in the Linux-speak. It seems that the Linux developers are deaf to a certain extent, they are not able to hear the difference. Both Linux developers and Linux users seem to be perfectly happy with PulseAudio, except for a few dissidents who pretend to be able to hear the difference. This does not contradict the fact that the number of Linux users is comparable with the number of the deaf:http://blogs.adobe.com/open/2011/06/foc ... lient.htmlhttp://research.gallaudet.edu/Demographics/deaf-US.phpReduced hearing capacity – understanding less and less, almost without noticing ithttp://www.sennheiser.com/sennheiser/ho ... ing_livingSymptoms of deafness: http://www.sennheiser.com/sennheiser/ho ... g_symptomsWhy does our hearing deteriorate?http://www.sennheiser.com/sennheiser/ho ... ng_reasonsIn order to enjoy life to the fullest, you have to hear it http://www.sennheiser.com/sennheiser/ho ... g_pleasure
The only practical solution seems to be the Russian DeadBeef player with Petrov's plugin for OSS4 (it also has the "exclusive" mode) viewtopic.php?f=3&t=4424
Although that famous Russian "ultimate player" is a buggy crap infected with PulseAudio, it is possible to use it, but you may need to recompile is, of course, to remove PulseAudio and other "very advanced open-source crap":
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# 1. Remove libsamplerate (if you have it installed), before compiling DeadBeef:
# sudo pacman -Rdd libsamplerate
# 2. Remove libpulse, if you have it installed.
./configure --prefix=/usr --disable-pulse --disable-alsa --disable-ffmpeg --disable-vfs-curl --disable-lfm --disable-artwork --disable-supereq --disable-converter