What is the right acceptable Latency

If you can't detect it and others listening do not notice it, then it is probably fine.

If you notice it, then it is unacceptable.

I do not think giving you a number will overcome those realities.

Every mechanical instrument has some degree of latency. Anything that's below 10 ms is not noticeable for us humans.

BTW, your ASIO latency (512, 256, etc. samples) is just one part of the equation. That is not the whole round-trip latency of your system.

http://www.presonus.com/community/Learn...io-Latency

The latency on an acoustic is not directly comparable to latency on a DP or VST.  An acoustic gives you tactile feedback to your fingers so you're not triggering off only the sound.  While build-in DP speakers can transmit a bit of buzzing feeling to your fingers, it is done slightly after you hear the sound so it doesn't change the latency model.

Hence, the advice given above is appropriate.  Comparisons to other configurations (acoustic or not) often are not equalized in all factors ... so whatever feels good to you will work.

Perhaps the next stage of DP advancement after realistic wooden key action -- vibration applied to individual keys triggered off a different MIDI channel.  If such a DP existed, Pianoteq could include this in the model and send vibration MIDI back to the DP.

Yup - that's ironic

The numbers regarding brain's processing latency haven't changed by much at all.

Hi all,

In my own experience latency (or how it feels) is dependent on many things.

In live stage those milliseconds matter more than perhaps in home studio: PA system is farther away from your playing position and this increases latency. So if your piano is having little bit too much latency, in stage you'll probably feel it worse.

Most of all it is still about getting used to some kind of latency. If you play a lot with instrument with more or less latency, it will probably feel right to you. Of course latency must be inside acceptable level. I think it's about adjusting our brains... But it may become problematic if you have to chance from one latency level to another. For example, playing a lot with real grand piano and then suddenly with software piano with latency. Our drummer has said to me that it's very difficult to play mixed set of real drums and e-drums (with latency). On the other hand, to him it's no problem to play just these e-drums.

IMO latency is a big part of the picture, how piano emulation succeed to feel like a real thing. Still I think quite many of us have different idea what is acceptable and what is not. Personally I am quite intolerant here. I like to have as low as possible latency with PTQ.

Cheers,
P

If that's true then as I said, the devil is very much in the details.  Any gamer will tell you that 1/10s (ie. 100ms) is an eternity.  So it really depends what kind of information processing is being talked about, and just quoting a number out of context means very little.

Simple example, it will take us much longer to identify a moving shape, than to recognize a flashing light in the dark.

From what I read on Piano Forum, about 10ms total latency is maximum acceptable value for most of the people. And I agree with this number. Of course there are some people who don't mind 15ms and there are some who claim 5ms is too much (probably the same who can hear difference between 96kHz and 192 kHz audio :-) Numbers like 100ms are completely wrong of course (when talking about latency).

So general answer is 10ms.

Hi. Ive thought alot about this questions about 10 years ago when I started playing with my electrical piano connected to my computer. I have a roland fp-5 and play alot of classical music and jazz.

When it comes to playing chords for a pop song, I might settle for a high latency but when I play fast pieces of classical music I feel I need a latency as short as possible, otherwise I loose the rythm or something like that.

I could definitly play around with 5-6 msc but Ive prefer it lower then that. I upgraded soundcard to get lower, now im at 3msc running an RME Hammerfall hdsp 9632 at 64 buffersamples. Feeling greath about switching to this soundcard instead of my old M-audio delta audiophile 2496 which didnt have that much strenght.

I guess it all up too taste and the music you play. If it feels good, it is good.

Hope you get it just right and play some beautiful music doing it !

I found this today,
http://www.google.com/url?sa=t&rct=...mp;cad=rja

I hope that works as a link

EDIT
OK, I tested it just after I posted this reply.
It works but,,, The browser then asks if you are willing to take the risk of downloading the file and if so what you want to open it with.

It is a .pdf and I think it is harmless.
From a cursory reading, hammer flight times are in the order of several tens of milliseconds to a few hundreds of milliseconds according to  key velocity.
END EDIT

Now I'm trying to remember if sample players and/or pianoteq artificially delay key strikes according to their velocity - it would seem that they should.