{"id":1375,"date":"2005-05-19T01:20:18","date_gmt":"2005-05-18T23:20:18","guid":{"rendered":"http:\/\/vizZzion.org\/blog\/2005\/05\/alsa-software-mixing\/"},"modified":"2005-05-19T01:20:18","modified_gmt":"2005-05-18T23:20:18","slug":"alsa-software-mixing","status":"publish","type":"post","link":"https:\/\/vizZzion.org\/blog\/2005\/05\/alsa-software-mixing\/","title":{"rendered":"alsa software mixing."},"content":{"rendered":"<p>A <a href=\"http:\/\/lkml.org\/lkml\/2005\/5\/17\/57\">thread on the Linux kernel mailing list<\/a><br \/>\ndrew my attention since it deals with a problem that had me annoyed for a long time: Not being able<br \/>\nto have two applications playing a sound at the same time on my notebook, which has an Intel AC97<br \/>\nSoundchip. The alsa kernel drivers do not support multiple streams on hardware that doesn&#8217;t do it,<br \/>\nso there hasn&#8217;t been software mixing available in kernel. The upcoming release of alsa however does<br \/>\nsupport these kind of <em>advanced features<\/em> <stong>*ahum*<\/stong>. <a\nhref=\"http:\/\/lkml.org\/lkml\/2005\/5\/18\/52\">Lee Revell promises<\/a>:<\/p>\n<pre>This problem is fixed with the upcoming ALSA 1.0.9 release - dmix will\n\"just work\".  It's been a big area of development lately.<\/pre>\n<p>I have been playing around with my alsa configuration a little in order to see if the<br \/>\nbits suggested there would work for me &#8211; and indeed &#8211; I now can have XMMS running and mplayer using<br \/>\nmy sound chip (with the <strong>snd_intel_8x0<\/strong> kernel driver) at the same time. The <a\nhref=\"http:\/\/alsa.opensrc.org\/index.php?page=DmixPlugin\">dmix setup<\/a> didn&#8217;t pose to many problems<br \/>\nto me, but you can of course just wait until your favorite distributor does it right for you.<br \/>\nNow let&#8217;s push the <a href=\"http:\/\/www.skype.com\">skype<\/a>&#8211; and <em>[insert random software that<br \/>\nstill doesn&#8217;t support alsa here]-<\/em> developers to use alsa since the OSS layer and also the alsa<br \/>\nOSS emulation don&#8217;t support all that shiny dmix magic. Mixing is done in userspace, so not using<br \/>\nalsa-lib means <em>no fun<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A thread on the Linux kernel mailing list drew my attention since it deals with a problem that had me annoyed for a long time: Not being able to have two applications playing a sound at the same time on my notebook, which has an Intel AC97 Soundchip. The alsa kernel drivers do not support&hellip; <a class=\"more-link\" href=\"https:\/\/vizZzion.org\/blog\/2005\/05\/alsa-software-mixing\/\">Continue reading <span class=\"screen-reader-text\">alsa software mixing.<\/span> <span class=\"meta-nav\" aria-hidden=\"true\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-1375","post","type-post","status-publish","format-standard","hentry","category-kde"],"_links":{"self":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts\/1375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/comments?post=1375"}],"version-history":[{"count":0,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts\/1375\/revisions"}],"wp:attachment":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/media?parent=1375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/categories?post=1375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/tags?post=1375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}