[Stk] Realtime Midi - lost notes

[Gary Scavone]

Hi Robert,

The example programs (like demo.cpp) were not designed to be super  
robust.  In the code, there is an arbitrarily defined variable:

#define DELTA_CONTROL_TICKS 64 // default sample frames between  
control input checks

that controls how often the MIDI queue is checked.  In all  
likelihood, that is too big for what you are doing.

Regards,

--gary

On 6-Apr-07, at 8:44 AM, Robert Gründler wrote:

> Hi there,
>
> first i'd like to thank you guys for providing this library, it's  
> really great to have a base where you can start when trying to get  
> into dsp using c++.
> I would consider myself as an "advanced beginner" in c++, and i'd  
> like to dig a little deeper into the language. Having the goal to  
> write music-dsp programs,
> your library is imo the best way to start with.
>
> I've been going through your tutorials and managed to compile a  
> simple 3 voice synth using the code provided. All is working fine,  
> though the Realtime-Midi
> seems to make some problems for me here.
>
> When i play real nice and slow, it all works out, but ie. when i  
> hold one note on the keyboard and press a second one a little  
> faster multiple times, at some point the first note is turned off.  
> I'm using 3 ThreeBee instruments. My guess is that if the notes  
> come in too fast, some note offs get lost and the first played note  
> gets kicked out of the
> queue.
>
> Here's how i compiled the last tutorial :
>
> g++ -Wall -Wno-deprecated -D__STK_REALTIME__ -D__OS_LINUX__  - 
> D_LINUX__JACK__ -o gnusynth gnusynth.cpp -lstk -ljack -lasound - 
> lpthread -lm -lasound
>
> I'm working on a Fedora Core 6 box, Intel Core 2 Duo E6600.
>
> Any hint on that issue would be great, thanks!
>
> -robert
>
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