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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - LFE channel not synthesized properly"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95021#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - LFE channel not synthesized properly"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95021">bug 95021</a>
from <span class="vcard"><a class="email" href="mailto:darwish.07@gmail.com" title="Ahmed S. Darwish <darwish.07@gmail.com>"> <span class="fn">Ahmed S. Darwish</span></a>
</span></b>
<pre>This can be reproduced in the following manner:
1) Create a 5.1 null sink:
$ pactl load-module module-null-sink sink_name=NULL_5.1 \
channels=6 \
channel_map=front-left,front-right,rear-left,rear-right,front-center,lfe
2) Play out the null sink output through its monitor:
$ parec -d NULL_5.1.monitor | pacat
3) Play a high-bass audio file, like this one:
<a href="http://darwish.chasingpointers.com/pub/sine-wave-50Hz-0.8amplitude.mp3">http://darwish.chasingpointers.com/pub/sine-wave-50Hz-0.8amplitude.mp3</a>
(Produced using Audacity tone generator)
(4) High-bass should be heard.. Open `pavucontrol' and redirect the
mp3 player output to the NULL_5.1 sink.
Result: almost all of the bass is stripped</pre>
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