Erratic behavior

J
JPG posted Dec 20, 19:34:

Hi,
I configured a PI 2 to have a samplerbox and followed all the steps I think.
I use a USB midi keyboard and a Lexicon Alpha as a soundcard.
I can play notes and change sounds but I have a problem.

Some of the notes I play are sometimes repeated several times.
The only way to stop them is to change sounds (bank of samples).

The problem is because of my soundcard?
JP

W
woz posted Dec 20, 23:32:

I have had a lot of problems with the Lexicon interfaces on multiple full-on computers, I think it's your interface yes.

I also found that having a fast SD card, at least U1 rated, helps.

J
JPG posted Dec 20, 23:58:

Thank you for your help about the Lexicon interfaces. I'm waiting for a PCM2704 based Mini DAC but it takes more longer to be delivered than I expected.
But I don't understand the need of a fast SD card because all the samples are loaded into the 1GB of memory of the PI. Thus a fast SD card doesn't seem to be required. No?

W
woz posted Dec 21, 00:08:

Yes, so really It only makes switching samples and booting faster, but that's worth it. Buggy, old, or cheap cards really caused a lot of random unreliability on the Pi for me until I upped my sd game.

J
JPG posted Dec 21, 11:15:

I have already a good SD card.
Anyway, thank you for the advice! ;-)

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