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System exclusive data ► Troubleshooting

Make sure you have the right MIDI Input selected in Edit > Preferences > MIDI - Devices.
If there is no Dump Request Macro (DRM) for your instrument, you should select You start dump on instrument, then initiate the Sysx dump from the instrument. Once the bytes received count stops increasing, click Done to tell SONAR to stop receiving. The currently selected bank now holds the received Sysx data. You can rename the bank if you want by selecting the bank and clicking Edit > Name.
Some synthesizers will report data errors when you try to send Sysx information to them. This usually happens when SONAR sends data at a rate too fast for the synthesizer to keep up. You can use the SysxSendPacketSize=number setting in TTSseq.ini to make SONAR transmit Sysx data more slowly, as described in Sysx .ini file settings.
Try setting the number to 64. If that does not solve the problem, try successively smaller values. If 64 works, you may try larger values until it stops working; go back to the largest value that worked and you will have the fastest transmission rate that the problematic synthesizer can keep up with.
Make sure the instrument is set up to receive System Exclusive messages. In the Sysx View, make sure the right output is selected. Verify that the Sysx message originally transmitted from the same kind of instrument. An instrument will not recognize Sysx messages from a different make or model of instrument.
Some MIDI devices have special timing requirements when receiving System Exclusive transmissions. If your equipment has problems receiving System Exclusive data from SONAR, you might need to introduce some small delays to allow the equipment to digest the information it is receiving.
The line in TTSseq.ini that reads SysxDelayAfterF7=n enables SONAR to introduce a delay between each Sysx message so that the instrument has some time to respond to the message. Setting n to be 1 enables the delay. The line SysxSendDelayMsecs=n lets you control how many milliseconds the delay is, where n is the number of milliseconds that the delay lasts.
Some Roland equipment—notably, the GR-1 and GR-50 Guitar Synthesizers—have problems receiving Sysx packets in fast succession. You must use the setting SysxDelayAfterF7 = 1 with these devices.
Successfully sending Sysx messages to most Ensoniq instruments requires that you add the following three lines to the [Options] section of TTSseq.ini:
SysxDelayAfterF7=1 Enables delay
SysxSendDelayMsecs=200 Sets delay time to 200 milliseconds
SysxSendPacketSize=65535 Increases packet size to 64k

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