Hi Robert, Thank you so much for your answer. In the days since I wrote my message, I kept fiddling and ended up sending several sysex messages with a 40ms delay between each. The biggest problem since then was that the Handsonic said there was a Midi buffer overflow when in fact I had the checksum wrong for the subsequent sysex messages. Now it all works.
Never thought I'd be doing this byte-level stuff (and liking it :). Now I have to decide if what I want to write is really a JSynth driver or rather a Handsonic controller that does not even use JSynth (i.e., something like this http://www.ex5tech.com/ex5ubb_cgi/ultimatebb.cgi?f=6&t=000145&ubb=get_topic). I thought JSynth would handle the tricky bits, but it turns out that the javax.sound.midi package handles the hard parts, JSynth structures them in a particular way, and then I have to write the interaction with the Handsonic. At the risk of reinventing the wheel I think that doing the structure myself might be more to the point of what I want to do. Thank you again for all of your help, Daniel On 12/24/07, Robert Wirski <> wrote: > > Hello Daniel, > further action depends perhaps on your sysex device implementation. > If there is a sysex which changes several parameters, then use it. > Otherwise, there is no other possibility then sending several sysex > messages at a time. It requires to write your own sendPatch(Patch) > method. I did the same in my Roland JD800 driver (JSynthLib/ > synthdrivers/RolandJD800/RolandJD800SinglePatchDriver.java)., > Robert. > > > On Dec 22, 2007, at 2:42 AM, Daniel Rosenstark wrote: > > > Hello all. > > > > First off, thanks to those who responded to me privately, who > > probably meant > > to reply to the list. The answer to my last questions were "set the > > checksumOffset, start, and end values." That worked. > > > > So now I've advanced quite a bit in my HelloWorld, and now I have the > > following code > > > > super.trimSize = 16; > > super.checksumOffset = 14; > > super.checksumStart = 6; > > super.checksumEnd = 13; > > byte[] first = new byte[] { > > (byte)0xF0, // It's a MIDI > > System > > exclusive message! > > 0x41, // Roland ID > > 0x10, // Device ID 17 > > (minus > > one) > > 0x00,0x2E, // Model ID 2E for > > HPD-15 > > 0x12, // Command ID > > (this is > > data set, could be a request 0x11) > > 0x01,0x00,0x10,0x00, // the offset > > for the > > user kit, pad A1 > > 0x00, 0x00, 0x07,12, // the nibbled > > data for > > the shekere 124 > > (byte)0xFF, // checksum > > will go here > > (byte)0xF7 // end > > }; > > > > which works perfectly for ONE parameter change (I'm amazed. I had > > never > > nibbled before :). But now I want to send an entire kit (pads A1, > > A2, etc.). > > I've tried the two obvious things, making two sysexs back to back > > (they get > > trimmed to one, otherwise the checksum would be calculated just > > once). I've > > also tried putting in more than one offset and data (message was > > received > > but didn't do the right thing). > > > > I can send more than one sysex message, but I imagine there's a > > better way. > > > > Thanks in advance for your help! > > > > Best, > > Daniel > > > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Jsynthlib-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jsynthlib-devel
