Topic by carlo_bra

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  • carlo_bra
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Topic: Hints for saving processing power

Hello,
I downloaded for evaluation the Pianoteq Stage Trial version 6.1.1 and I started to use it with my DIY MIDI controller.
It works but sometimes I was getting some messages because overload CPU and it is probably right since my CPU is not exactly a monster of power. But I noticed that disabling the virtual keyboard, displayed in the bottom of the window of the program, the performances improved a bit.
So, I was wondering if:
- the option "display chords" from the "General" tab could save some power when it is turned off, or it just disables the text of the display.
- if it would be possible to add, in a future version, the chance to disable in some way some realtime graphics, like the display of the output level and velocity gadgets, if you think it could be helpful for saving some processing power.

Thank you very much for your time.
Sincerely.

Reply by petez9

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Re: Hints for saving processing power

I don't know how much the chord thing affects performance, but turning it off won't hurt, for sure. Also, check the "perf" tab in the options popup for some other prefs that will affect performance - might be worth experimenting with lower internal sample rates and reduced polyphony. Also switching off some effects, like reverb and delay, is worth a try, I guess.

Reply by sjgcit

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  • sjgcit
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Re: Hints for saving processing power

carlo_bra wrote:

It works but sometimes I was getting some messages because overload CPU and it is probably right since my CPU is not exactly a monster of power.

What CPU do you have ?

Pianoteq is able to run on pretty modest kit ( e.g. my dual core Celeron N2840 laptop ).

If you're using a laptop or similar try turning the power saving mode to "Performance" or an equivalent.  Normally many devices are set up in power saving modes that try and keep the power usage low by reducing available processing power in various ways.

StephenG

Reply by marcos daniel

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Re: Hints for saving processing power

It shoud be even better to run Pianoteq without gui, you can do this from a console:
cd \
cd "program files"
cd Modartt
cd "Pianoteq 6"
"Pianoteq 6.exe" --headless

or (the console auto completes if you use first letter and tab key)
cd "\Program Files\Modartt\Pianoteq 6"\               
and then
"Pianoteq 6.exe" --headless

Or, easier, add the --headless modifier to a shortcut of the program (right click on the Pianoteq icon, properties)
But then you'll have to kill the program from the task manager

Reply by EvilDragon

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Re: Hints for saving processing power

I don't think you'll be saving a lot of CPU by disabling those two things...

Hard work and guts!

Reply by carlo_bra

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Re: Hints for saving processing power

sjgcit wrote:

What CPU do you have ?

I have an old HP notebook with Intel Core i5 M460, 2 cores, 2.5GHz.

petez9 wrote:

Also, check the "perf" tab in the options popup for some other prefs that will affect performance - might be worth experimenting with lower internal sample rates and reduced polyphony.

You are right... In the "Device" page, I could just select 48KHz as sample rate, but I did not notice the "internal sample rate" option, changing it to 32KHz made the warning to not appear anymore.

marcos daniel wrote:

"Pianoteq 6.exe" --headless

You are right, with this option, all possible graphic hacks are useless.


Thank you very much to everyone!
Sincerely.