[linux-audio-user] RE: midi Sys Ex dumps

[Michal Seta]

Hi ron,

No sweat.  I thought I'd try it because I don't use that module so much, anyways, so I didn't mind loosing data.  I have been able to reset it, no problem and even upload the original SySex (ah, those 80's memories).  I even have some of my own sysex dumps somewhere in the backup CDs.

Anyways, at least the linux community knows now that cat x.mid >/dev/midi doesn't really work.  I would assume that editing the dump file (generated via cat /dev/midi >dump) into correct sequences of SySex messages and sending them sequentially (via a script?) might still work.

On a related note, I noticed (a while ago) that I have been unable to record a sysex dump to a MIDI sequencer (I tried MuSe and perhaps seq24) and then play it back into the unit (I mean I can record and play but I always get checksum errors).  Other people's SySex in .mid format works for me.  It could be that it's my synth sending erroneus SySex.  I haven't really looked into it in detail.

This is still with a Roland GR-50.  I know that some of the D series models had a bug with checksum calculations.  If anyone has any idea about this, let me know.  But it's no rush.  I would have forgotten all about this if it wasn't for this thread.  I guess I can blame Ron for reminding me of my old problems :)

cheers.

./MiS

On Sat, 12 Apr 2003 07:02:22 -0700 (PDT)
R wrote:

> Hi Michal,
> 
> Damned, I feel bad about what happened to your synth.
> I needed a solution, googled that thread and replied
> to my own message. It looked promising. Were you able
> to reset your synth?
> 
> A google search for "Roland GR-50 sysex dump"
> produced:
> http://www.hotkey.net.au/~citymusic/specs/RolandInits.txt
> with the following entry is:
> GR-50(D):   Power on holding down WRITE, EXT & VALUE
> UP.(Sysex Midi file which restores factory sounds is
> available)
> 
> For the immediate, I'll probably use the Mac
> application MidiGraphy for SysEx dumps with my DM-24
> mixing consol.
> 
> ron
>