But until that day, please do try and stay just as vehemently on the topic of this thread, as you do to go off it!

A man has been asking for some help  —honestly.

Now I’d really like to share a part of my personal story with you, if we (you and I) can have still an adult conversation at this public forum  —but without annoying red flags and intimidating threats for some kind of censorship between us, only in a truly frank (sometimes polarized) discussion of your topic.

MrRoland - there is absolutely NO need to reply to those utterly disrespectful jibes and insinuations.

Nobody deserves that... horrible.

I was actually hoping you'd report abuse (I nearly did but let it go).

I though to write privately re. moderation - but will post here because, maybe the rest of the forum will have already expected some words about it from someone who is 'triggered' by the troll.

Not triggered BTW but MORE than happy to be rid of this type of attacking and disturbing atitude displayed by Amen Ptah Ra.

We all come here, and many others come here to find information NOT abuse.

MODERATORS - Please consider deleting the above posting by Amen Ptah Ra - (and these the following posts).

I am beyond shocked and horrified that we need to see such a blatant and harassing attack by Amen Ptah Ra on another forum user MrRoland.

I am disgusted at the tone (as MrRoland calls is) of Amen Ptah Ra's rant. There are unnecessary out-of-any-context language issues as well.

@Amen Ptah Ra - I am beyond ashamed of YOU - I have never said a word before but I am not able to put up with this TRASH.

Disgusting - there's some disturbing narcissistic rot going on which cannot be tolerated. There's no humour in any of it - no sign of playful poking, joyful fun or appealing to any sense of humour around any of it.

It reads back as bereft of any humanity whatsoever. I believe you are a danger and a troll at heart.

What's posted by Amen above is a blatant and awfully stupid attack - for no reason what so ever.

Again, MrRoland, there's NO reason to respond.

There is reason to click report abuse. (I nearly did yesterday - but hoped Amen would return to "edit".

In fact Amen DID return to edit - but to ADD the line:

The only one showing broken through processes throughout an OTHERWISE AMAZING thread, is Amen Ptah Ra.

I am outwardly forced (by seeing MrRoland taking upon himself to "explain" himself) that Amen and his post should be removed.

Amen's post goes against the 3 first rules of the forum. I'm NO LONGER happy to think that that user will change and become LESS atrocious in "tone", to say the very least.

I expect to have this issue entirely fixed.

The public needs not see MrRoland have to explain his situation to PLEASE another user.

MrRoland - you should not need to explain a SINGLE thing.

Amen, your post above here is UTTERLY TROLL-like, despicable and shows that there is NO reason to read another thing you utter. Foolish.

MODS also feel welcome to delete this tiresome necessity of a response.

The End.

~~~~

RECORD OF PTAH POSTING (his maybe 3rd edit)

Imho, before jumping to conclusions, it's always a good thing to check the facts.
So, would you please be so kind to take some time to review my answers below?

Answer:

- Julien (Modartt) can also be read as "Julien from Modartt".
- As you can see Julien is asking me a question. Which means there is a conversation with somebody of Pianoteq. The only logical conclusion is that I did contact support. In fact I did 12 days ago. So far no solution.

Answer:

- Along with different usb-hubs came different cables.
  I even bought a new hub because of my issues and I used the new cable
  that was supplied with the hub. - So that's one cable I checked.
- The Numa compact and M-audio Fasttrack ultra are on different cables,
  so, that are two other cables I tried. To be sure I even tried a third cable.
  And to be even more sure I tied two different midi (din) cables instead of the usb
  cables. So I tested my connection with 5! different cables. Of course the usb 
  cables where able to process both audio and midi.

- Odroid-xu4 ==> Arm
- Intel T8600 (oops... it's actually a T3200) mini pc (best results) ==> Pentium
- HP Folio 1020 g1(core-m5) ==> Core-m5
Unless you are a magician it's impossible to make 3 different system architectures share the same usb port. So the logical conclusion is that I tried at least 3 different ports. In fact all systems have more than one port and I tried all off them, in total 10 ports.
Its a weird assumption that I didn't try something if I don't mention it explicitly.

Answer:
We had a lot of burglaries in our neighborhood. Common advice is not to advertise online what's in your house, when you're on holiday etc... So I only mention things when its relevant, I don't advertise them.

Answer: Please explain why this is relevant.

Answer:

Answer:
English is not my native language and I'm dyslectic (even in my native language).
So I'll make typos and I will keep doing it. If it's offending someone, well, thats their problem. To to accommodate you I would like to propose to continue this conversation in Dutch, my native language. I wont be making any errors, but I expect you to do the same.

Answer: Indeed you do, it's called empathy.

Answer:
1) I got my priorities straight, i just want to play piano without intermittent latency.
2) Why choose if you can have both?
3) I would not call myself a whiz, but I'm certainly not a noob, there's a whole world
    between those two.

Answer:
I agree. I do have a Macbook(2009), but its getting old so i replaced with a HP.
Why HP? Simply because I refuse to pay for overpriced hardware. Apple has been raising their prices to a level that, in my opinion, if way to high for what you get.

My keyboard is not the cause off the problem. When I hear the latency occurring and I play back the recorded midi file, the latency is gone. So the midi events sent to Pianoteq have the right timing.

I’m sugar coating nothing!

Let me see if I have things right.  You, MrRoland, experience unwanted latency so long as you send MIDI (playing) from your keyboard (via either a MIDI or USB cable) to your favorite USB port, whether or not faulty itself, or, a result from a faulty configuration  —while MIDI file playback in Pianoteq appears just fine and without any discernible latency, irregardless of the operating system in use (that is) whether Linux or Windows!

All this occurs, still; yet you’ve been troubleshooting, presumably!

If you will please, perhaps you’ll kindly explain how both your ‘Internal audio interface of Numa compact 2’ and ‘different USB hubs (recommended for audio usage)’ pertain or are remotely relevant to Pianoteq software to you as you troubleshoot  —but somehow neglect to check your cables and ports?

MrRoland you scarcely mention your keyboard model anywhere in your own topic posts.  It is completely without mention in your member profile introduction, as is your location.   As for your single keyboard mention via this thread, you are clearly defensive:

Nobody beside yourself has even suggested it as a possible root!

It occurs to me your problem is other than just syntax.

When IBM P/S 2 was in high regard to some, few if any were aware of the joke played on them.  People who made up the multinational conglomerate International Business Machines were apparently cracking up while they reeled in the profits they got.  I mean, outside who’d guess at their inside joke that their acronym stood for ‘I bowel move, piss too’!  This type of a thing was happening way back while QuarkXpress was probably the most popular desktop publishing software among the newly found upward mobile yet laughable Yuppies along with their predictably stereotypical quirks er quarks.  And, whose corporate identities were viewed like intended for children caricatures in cartoon shorts that always have the line, “Yup, yup.”

Man, silly ain’t it?  It’s similar to a line in a scene from a 60s teen movie I saw as a preteen in my once South Central neighborhood theater, although the movie’s title escapes me.  A couple of the movie hillbilly characters were standing somewhere in the vicinity of an ICBM missile silo, but with the missile set just above ground and with its vertical acronym ICBM shown in bold red letters printed on the length, the one says to the other “ICBM,” for a theatre audience to interpret as humorously meaning, “I see B.M.”  —bowel movement!

“What’s your point?” you may ask.  My question is: “How can you come off someone computer literate in something as difficult as a Linux system when you appear marginally literate from your own posts written in English?”  I’m missing something.

From your statement (above), I take it you’ve meant maybe “licensed.”

Keep in mind, a Linux system cannot forgive you for your mistakes in a computer language as easily as forum members can in English.  And, still get your meaning.

I say to you, thoroughly examine all of your thought processes  —not just your CPU.

Get your priorities straight!  If you (a person who’s been obviously wrestling with his configuration for an extended period over a year now) were in front of me right now right here, I’d have to say, choose between your appearing someway a computer whiz in user forums, and, your appearing routinely as a musician in local venues.

Although I am saying really as only a suggestion now my Apple stuff is uncomplicated and plug ‘n play!

Although my two suggestions at this point are, if you do decide to ever contact support, maybe before you do, just go with any VST most familiar to you  —and only after some sort of a hardware test.

When periodically my iMac was displaying a spinning wheel along with delays it can bring, I conducted a hardware test and found a faulty hard drive my problem.  Once I replaced the hardware, I became much like a happy camper taking in some gorgeous natural scenery and sounds too!

I imagine you reinstalled a newly download of Pianoteq with each attempt and no leftovers, also tried to run another VST?

Yes I did clean My install several times.
I even tried a fresh os install.
Beside Pianoteq I don't use any other instruments, so I didn't try. I'll give I a try with another instrument. Do you have any recommendations for a good instrument to test?

Bummer.  Well hopefully this info will be useful to someone in the future.  In the meantime, good luck with other options.

Thank you.
Yes... very frustrating.
But for now i'll keep the licence and hope i will find a solution
I'll focus on a quick solution for the moment, but i still hope i get it working in the future.
For now i need to be able to focus on my playing.

Today i carefully started everything the same way i did yesterday...
Within minutes delays where all over the place...
I checked, double checked...
Wifi turned off - All cores at performance - perf-bias 0 - cpufrequency was at max.
Jack started with realtime priority, Pianoteq has realtime priority...

It's just not stable. I'm tired of trying.
I need to be able to turn my stuff on and play...

Thanks for all efforts for helping me.
I really appreciate it.
I'm going to search for an other solution now.
Sorry.

Look forward to next update and well done Groovy.

Hope this info gets added to the Pianoteq README for linux users.

On my (Acer) pianoteq-laptop I'm using the package qjackctl as output for PTQ. Kernel-package is linux-image-rt-amd64 (the realtime-kernel of Debian 9 Stretch).

With this combination I can use 64 samples buffer and even 2 periods (instead of standard 3) at 44.1kHz in JACK's synchronous mode on this fanless Intel N4200.

One observation I made recently: As soon as I start qjackctrl, the cpu freq scales up to the upper range of my performance governor (2.4 GHz) and stays there more or less constant.

Have a good time, MrRoland!

cpu MHz         : 2782.482
cpu MHz         : 2818.457
cpu MHz         : 2881.774
cpu MHz         : 2854.858

setting the perf-bias immediately set the cpu frequency to maximum,
even without load.

I'm slightly optimistic. Slightly because I still seem to hear some delays,
so I need to test further.
But at least one problem is solved!

Thank you for that Groovy!

... I found an option that my Lenovo has and my Acer hasn't. The so called "perf-bias". It determines, how aggressive the freq scales within the given range.

I found it to be 6 on my Lenovo:

# cpupower info
analyzing CPU 0:
perf-bias: 6

This perf-bias has a range from 0 to 15. Six being normal, zero most agressive perf and 15 most powersaving.

You should control your setting!

It can be set to max perf with:

# cpupower set --perf-bias 0

# cpupower info
analyzing CPU 0:
perf-bias: 0

That one is new to me I'll dig in to it tonight when I'm home.
Thanks!