<br><br><div class="gmail_quote">On Sun, Aug 1, 2010 at 3:08 PM, James Morris <span dir="ltr"><<a href="mailto:james@jwm-art.net">james@jwm-art.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 1 August 2010 19:37, Arvind Venkatasubramanian <<a href="mailto:mdu.arvind@gmail.com">mdu.arvind@gmail.com</a>> wrote:<br>
<br>
> Question on using QJACKctl:<br>
> I was able to create some basic setting, load and read latency that gets<br>
> printed on the terminal. But what do the parameters on the setting tab of<br>
> console pop up mean? No soft mode, monitor, priority, time out etc and the<br>
> options tab. How do I use these options and tine tune them in order to set<br>
> the minimum feasible latency for the application that I intend to develop?<br>
> Above all, if the drop down menu options does not allow me to choose lower<br>
> sampling rates, what command do I use on the CLI to do the setting. Or Do I<br>
> need to edit QJACKctl's .conf file to set lower sampling rates manually.<br>
> My Intel sound card supports sampling rates of 8kHz and 16 kHz. I confirmed<br>
> this by looking into Audacity device ID setting. I know that I am asking<br>
> some basic stuff but my problem is that I do not find the right<br>
> documentation for solving my problems.<br>
<br>
</div>Typing in the console:<br>
<br>
man jackd<br>
<br>
will help you identify the nature of some of the command line options<br>
for jack, as well as give you some clues for matching them to the tabs<br>
within QjackCTL.<br>
<br>
I'm no expert, and all I've ever tried for getting the best (lowest)<br>
latency is by experimenting with seeing how low I can go with the<br>
Frames/Period setting in QjackCTL which is the -p or --period setting<br>
on the command line. If it works and no x-runs occur, then...<br>
...it works :-)<br>
<br>
A method of identifying which command line option to Jack relates to<br>
which setting in QjackCTL is by changing a setting in qjackctl and<br>
stop/starting Jack through qjackCTL while watching the messages log.<br>
<br>
James.<br>
_______________________________________________<br></blockquote><div><br></div><div>James:</div><div><br></div><div>I finally got a detailed document at:</div><div><a href="http://linux.die.net/man/1/jackd">http://linux.die.net/man/1/jackd</a></div>
<div><br></div><div><a href="http://linux.die.net/man/1/jackd"></a>This will help me get started with Jack scripting. Thanks for your patient answers.</div><div><br></div><div>-Arvind V </div></div>