Re: [AH] OB-Xa MIDI Lag (Encore)

From Michael E Caloroso
Sent Sat, Oct 19th 2019, 17:30

My OBX Encore MIDI retrofit has never had jitter/note on/off lag or
sysex issues.

It is possible that the Encore retrofit may be incompatible with your
particular OBXa.  There were different versions IE the original model
needed a replacement processor board to upgrade from 32 to 120
patches.  Memory mapping was different between the two versions.  I do
not know if the Encore retrofit can accommodate either version, but
the developer did work for Oberheim during the days of the OBXa.

Sent from my iOberheimHistoryBook,
MC

>> I have an OB-Xa with a Encore midi kit that seems to have a bad lag and
>> jitter issue. the lag is about a 16th note at 120 bpm. I'd correct for it,
>> but then there's a jitter issue too, which is equally bad. any ideas what
>> could be causing this?
>
>I've never seen note on/off lag anywhere near that bad (or even long
>enough to be musically noticeable), but my Encore OB8 does drop bytes
>from sysex dumps.  A full bank dump should be 7440 bytes, but sometimes
>I have to resend three or four times to get one that size, so I always
>verify my sysex dumps from it to make sure I haven't saved garbage.
>
>It seems the Encore Oberheim retrofits have some bandwidth
>issues...though I don't know of any other with comparable features.