Re: [LAU] 96 kHz -- a bottleneck somewhere

Simon, that's wonderful! Thanks!!!

Jonathan E. Brickman
Ponderworthy Music | jeb@email-addr-hidden | (785)233-9977 |
http://ponderworthy.com <http://ponderworthy.com/>

------ Original Message ------
From: "Simon Wise" <simonzwise@email-addr-hidden>
To: linux-audio-user@email-addr-hidden
Sent: 5/8/2014 7:22:47 AM
Subject: Re: [LAU] 96 kHz -- a bottleneck somewhere

>On 27/04/14 03:23, Jonathan E Brickman wrote:
>>I decided to try 96 kHz audio with the S.R.O. (Supermega Rumblic
>>Organ), my slightly Aslan-like synth (it is not a tame device really),
>>and found items which may be of interest:
>>
>>1. At 96 kHz, schedtool definitely matters. Taking it out increased
>>xruns a
>>lot. I tried to figure out what was interfering via htop, but it was
>>very
>>unclear. So I'm keeping the schedtool for now. I could believe that if
>>I
>>reengineer for a zero-X default setup (likely to happen in the future)
>>this
>>problem might go away, X and the desktop certainly do have lots of
>>demands.
>>I *think* the only big piece missing for me in this is keymapping, I
>>use
>>F-keys to switch patches, quite easy in both LXDE and MATE.
>
>thd .... otherwise known as trigger-happy-daemon ... does keymapping
>without X,
>debian package is:
>triggerhappy
>
>Description-en: global hotkey daemon for Linux
> Triggerhappy watches connected input devices for certain key presses
> or other input events and runs administrator-configured
> commands when they occur. Unlike other hotkey daemons, it runs as a
> persistent, systemwide service and therefore can be used even
> outside the context of a user or X11 session.
> .
> It can handle a wide variety of devices (keyboards, joysticks,
> wiimote, etc.), as long as they are presented by the kernel as
> generic input devices. No kernel patch is required. The daemon is
> a userspace program that polls the /dev/input/event? interfaces
> for incoming key, button and switch events. A single daemon can
> monitor multiple input devices and can dynamically add additional
> ones. Hotkey handlers can be assigned to dedicated (tagged) devices
> or globally.
> .
> For example, this package might be useful on a headless system to
> use input events generated by a remote control to control an
> mpd server, but can also be used to allow the adjustment of audio
> and network status on a notebook without relying on user specific
> configuration.
> .
> Key combinations are supported as well as the hotplugging of devices
> using a udev hotplug script; the running daemon can also be influenced
> by a client program, e.g. to temporarily pause the processing of
> events or switch to a different set of hotkey bindings.
>Homepage: http://github.com/wertarbyte/triggerhappy
>
>
>Simon
>
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Received on Fri May 9 00:15:03 2014