<html dir="ltr"><head></head><body style="text-align:left; direction:ltr;"><div>Jack has access to audio from application that are built to use jack, and can get audio from Apple's CoreAudio sources, and send audio to CoreAudio destinations, like the default system sound default destination, likely your built-in speaker. </div><div>It sounds like you want to use a destination as a source, which is not what jack was design to do. Apple has carefully crafted their OS to prevent you from doing that, for digital rights management reasons, so the OS doesn't give jack access to any audio beyond the boundaries of jack itself. It's like the post office: You can send a letter to me, and someone else can send a letter to me too. I get to see both, but you will never know anything about the other mail I get, unless I share it with you. Apple doesn't share.</div><div><br></div><div>-Ethan</div><div><br></div><div>On Sun, 2020-04-26 at 03:18 +0700, Tim O'Brien wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><pre>Hello,</pre><pre>Is it possible to use Jack Audio to capture audio from the speaker on Mac.</pre><pre>I want to save the audio in a file. So long as it works on Catalina or</pre><pre>above is fine.</pre><pre>thanks in advance</pre><pre>Tim</pre><pre><br></pre><pre>PS</pre><pre>I believe this means capturing in the I/O Kit or AUHAL</pre><pre>_______________________________________________</pre><pre>JackAudio mailing list</pre><a href="mailto:JackAudio@lists.linuxaudio.org"><pre>JackAudio@lists.linuxaudio.org</pre></a><pre><br></pre><a href="https://lists.linuxaudio.org/listinfo/jackaudio"><pre>https://lists.linuxaudio.org/listinfo/jackaudio</pre></a><pre><br></pre></blockquote></body></html>