<html><head></head><body>My diagnosis, too, would be that I was using Pulseaudio all that time.<br>
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But... ...did I understand this right? Jack might be possibly able to work with my a2dp headset?<br><br><div class="gmail_quote">Am 17. Januar 2018 19:12:21 MEZ schrieb David Kastrup <dak@gnu.org>:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">"Chris Caudle" <chris@chriscaudle.org> writes:<br><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> On Wed, January 17, 2018 1:40 am, Ralf Mardorf wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> On Tue, 16 Jan 2018 15:31:15 -0600, Chris Caudle wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;">I thought Ardour could use any ALSA device which could run at the<br>project sample rate.<br></blockquote></blockquote><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> No, it can not! It e.g. requires jack when using a HDSPe AIO<br></blockquote><br> I think all the problems you have described trying to use HDSPe AIO<br> indicate that the driver for that device is not fully operating for<br> some reason. You have found problems that do not seem to be present<br> with any other fully operating device.<br></blockquote><br>The Tascam US-122L uses the (basically undocumented) ALSA usbstream<br>plugin. While you can in theory use arecord and aplay with it, the<br>parameters it needs (format, buffer sizes and so on) are so very<br>specialized that it's close to impossible to specify everything those<br>programs need to get the device working, and if you get them to actually<br>take up work, it's practically impossible without xruns.<br><br>jackd gets along with it. So that is an ALSA device I found pretty much<br>impossible to use without Jack (at least for PCM: Midi is<br>inconspicuous). The driver/plugin seems to have gotten just the<br>attention needed to make it work with Jack.<br><br>No idea whether the HDSPe AIO situation is comparable.<br></pre></blockquote></div><br>
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