<div>On Mon, May 17, 2010 at 6:55 AM, Donald Steven <span dir="ltr"><<a href="mailto:t6sn7gt@aim.com">t6sn7gt@aim.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
Is it my imagination, or is the basic sound quality of RHEL 6.0 beta and<br>Fedora 13 improved over previous versions. To my ears, it has a clarity<br>I haven't heard before.</blockquote><div><br></div><div>A more stable and less jittery clocksource might be the reason for improved clarity. Jittery clocks are the main reason why ditgital sound can be so crappy, and the reason why studios aiming for the highest fidelity usually use external precision wordclocks ( <a href="http://www.apogeedigital.com/products/big-ben.php">http://www.apogeedigital.com/products/big-ben.php</a> )and jitter-reducing external a/d&d/a's like <a href="http://www.apogeedigital.com/products/rosetta-series.php">http://www.apogeedigital.com/products/rosetta-series.php</a> .</div>
<div> </div></div><div>Perhaps F13 implements the "audiophile tweaks" I've heard mentioned in chat: <a href="http://ccrma-mail.stanford.edu/pipermail/planetccrma/2010-March/016511.html">http://ccrma-mail.stanford.edu/pipermail/planetccrma/2010-March/016511.html</a></div>
<div><br></div><div>Might be a good idea to see how your HPET timers are configured... A stock F12 x86_64 gives:</div><div><br></div><div><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
gnulem-163-~> cat /sys/devices/system/clocksource/clocksource0/available_clocksource</blockquote><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
tsc hpet acpi_pm </blockquote><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
gnulem-164-~> cat /sys/devices/system/clocksource/clocksource0/</blockquote><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
available_clocksource current_clocksource </blockquote><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
gnulem-164-~> cat /sys/devices/system/clocksource/clocksource0/current_clocksource </blockquote><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; ">
tsc</blockquote><div><br></div><div>What are the results for F13? </div></div><div><br></div><div>Niels</div><div><a href="http://nielsmayer.com">http://nielsmayer.com</a><br></div>