Search found 660 matches

by merlyn
Sun Aug 02, 2020 1:22 pm
Forum: System Tuning and Configuration
Topic: [Solved] Alsamixer only showing 6 in/out when 8/8 expected
Replies: 9
Views: 209

Re: [Solved] Alsamixer only showing 6 in/out when 8/8 expected

I'm glad you found a solution. In defence of alsamixer -- for me it's fine for what it does. With the better laid out GUI you've found -- if it was me -- I would set everything at 0dB and leave it. :) That's a good thing about Linux -- multiple solutions mean different users can find what works for ...
by merlyn
Sat Aug 01, 2020 7:33 pm
Forum: Linux Music News
Topic: Chow DSP - AnalogTapeModel
Replies: 2
Views: 290

Re: Chow DSP - AnalogTapeModel

I tried this out. If you're using Arch Linux it's available in the AUR. It didn't load as a plugin in Ardour, but it did load as a plugin in Carla and as a plugin inside the Carla plugin in Ardour. When worse is better. Technically worse, subjectively better. Funny bunch musicians. They fret about '...
by merlyn
Sat Aug 01, 2020 11:23 am
Forum: System Tuning and Configuration
Topic: [Solved] Alsamixer only showing 6 in/out when 8/8 expected
Replies: 9
Views: 209

Re: Alsamixer only showing 6 in/out when 8/8 expected

You're welcome. :) I had a bit more of a look at this. Slightly off topic, but ALSA is still kind of mysterious to me. It's like xorg.conf -- the less you have to do with it the better. :) I haven't touched xorg.conf for years and that's good -- it's all now put together to work. Similarly for most ...
by merlyn
Sat Aug 01, 2020 9:34 am
Forum: System Tuning and Configuration
Topic: [Solved] Alsamixer only showing 6 in/out when 8/8 expected
Replies: 9
Views: 209

Re: Alsamixer only showing 6 in/out when 8/8 expected

I see. You have actually got 8 channels there -- Mic Front, Rear and Side are stereo channels which makes 6, plus Mic Center and Woofer are mono making 8. I would then think Mic 1 is a master?

EDIT : You got it. I don't use alsamixer that often. I set it up, then rarely need to touch it.
by merlyn
Sat Aug 01, 2020 9:09 am
Forum: Announcements
Topic: JjazzLab 2.1.2 Is Out
Replies: 4
Views: 148

Re: JjazzLab 2.1.2 Is Out

I use this and it's good -- if you've used something like iRealPro on a phone or tablet this is the same idea for a desktop. The developer has put together a custom soundfont which I think is better than what comes with iRealPro. JJazzLab also has the advantage of being able to specify on what beats...
by merlyn
Sat Aug 01, 2020 8:56 am
Forum: System Tuning and Configuration
Topic: [Solved] Alsamixer only showing 6 in/out when 8/8 expected
Replies: 9
Views: 209

Re: Alsamixer only showing 6 in/out when 8/8 expected

If all 8 channels are available in JACK then ALSA must know about them. It's very basic but are the other two channels off the right hand edge of alsamixer ? If there is stuff off the right hand edge the alsamixer window has arrows pointing right down the right hand edge and the other channels can b...
by merlyn
Fri Jul 31, 2020 5:43 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

My USB controllers are on IRQ 18 too according to lspci . I notice your IRQ 18 is using 0% CPU -- so it could be used only for initialisation, or when connecting a device. I would think it's safe to leave it out of rtirq.conf. I have been reading through the Ardour thread, and x42 pretty much gives ...
by merlyn
Thu Jul 30, 2020 6:05 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

The only reason I've left it in is because my card is assigned to its IRQ - 18. Where are you getting that? If I use cat /proc/interrupts it doesn't tell me what devices are on the USB bus. If you have JACK running then yes, the interrupt at the top is the soundcard. top shows this : PID USER PR NI...
by merlyn
Thu Jul 30, 2020 4:09 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

I think i801_smb may not have anything to do with your soundcard. Is it the System Management Bus? Have you tried deleting i801_smb in rtirq.conf?
by merlyn
Thu Jul 30, 2020 10:40 am
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

turbidh20 wrote:to clarify - using xhci puts all 9 USB 3 IRQs at the top! This would appear to be a drawback
If you get less Xruns it doesn't seem to be a drawback. Are your other USB devices on 'ehci'?

Your experience would suggest rtirq can go into the 'essential' category of tweaks.
by merlyn
Wed Jul 29, 2020 12:04 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

I have 11GB (don't ask :)) of RAM and a swap file the same size. Total overkill i know. I have seen the swap file get used even with swappiness=10, so my swappiness is now swappiness=1 and I haven't seen it get used. Ideally the swap file would never be used and with 32GB I would consider having no ...
by merlyn
Tue Jul 28, 2020 6:37 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

What does "RTIRQ_RESET_ALL" set to "1" actually do? I just tried it and on Arch nothing. :) When I used Ubuntu setting it to '1' meant all other IRQs were on scheduler TS, now on Arch they're on scheduler FF with a priority of 50. I should ask rncbc about that :) $ rtirq status PID CLS RTPRIO NI PR...
by merlyn
Tue Jul 28, 2020 4:59 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

I've just played with this again to be sure and, on my system, it's absolutely needed. Without prioritising xhci (USB) I'm getting many xruns just playing back a session in Mixbus. That's good information. I have a USB 1.1 interface which I've used to test this, and to raise its priority I add 'ohc...
by merlyn
Mon Jul 27, 2020 11:56 pm
Forum: System Tuning and Configuration
Topic: How much RT optimization is still needed?
Replies: 23
Views: 627

Re: How much RT optimization is still needed?

There is one AUR package - 'tuned-git' I use, which when using its 'latency-performance' profile gives a noticeable boost to cutting DSP load. I tried this and it didn't affect my DSP load. I'm not suggesting there is anything wrong with tuned -- I think I had already done everything that tuned doe...
by merlyn
Mon Jul 27, 2020 9:46 pm
Forum: Suggestion Box
Topic: Moderation on linuxmusicians.com?
Replies: 14
Views: 530

Re: Moderation on linuxmusicians.com?

Current movement is getting insane and too much is sensored. Like what? I think a problem is that maniacs get to spout insane garbage with no comeback -- e.g. injecting disinfectant, anti-vaxxers, climate change deniers and outright untruths like £350 million on the side of a bus. :) I'm not in fav...