<!DOCTYPE html> <html> <head> <title>QMidiPlayer Help</title> <link rel=stylesheet href='styles.css' type='text/css'> </head> <body> <div id="panel"> <ul> <li><a href="index.html">Overview</a></li> <li><a href="mainwindow.html">Main Window</a></li> <li><a href="channeldialog.html">Channels Dialog</a></li> <li><a href="channeleditor.html">Channel Editor</a></li> <li><a href="plistdialog.html">Playlist</a></li> <li><a href="efxdialog.html">Effects</a></li> <li><a href="optionsdialog.html">Settings</a></li> <li><a href="visualization.html">Visualization</a></li> <li><a href="cmdargs.html">Commandline arguments</a></li> <li><a class="active" href="troubleshooting.html">Troubleshooting</a></li> <li><a href="miscellaneous.html">Miscellaneous</a></li> <li><a href="version.html">Version Info.</a></li> <li><a href="license.html">License</a></li> </ul> </div> <div id="content"> If troubleshooting cannot solve your problem, please don't hesitate to report an issue. <h3>1. I can't hear anything!</h3> <p> <ol> <li>Check current audio driver in the option dialog. Do not use an audio driver that is not installed on your system.</li> <li>If no soundfont is loaded, the internal synthesizer won't make any sound...</li> <li>Check audio driver/buffer settings in the synth section.</li> <li>Check if your midi file is valid/having correct bank selecting method<s>/having zero volume</s>.</li> </ol> </p> <h3>2. The playback is intermittent.</h3> <p> Try increasing audio buffer size and/or audio buffer count in synth options. </p> <h3>3. MIDI timing is messed up.</h3> <p> This is a known issue under Windows. Try decreasing audio buffer size and increasing audio buffer count. </p> <h3>4. Some files cannot be played.</h3> <h3>5. Some soundfonts cannot be loaded.</h3> <p> Files names with characters unsupported by the system locale won't load correctly in Windows. This is a known issue. </p> <h3>6. Sound is distorted.</h3> <p> Try reducing the master volume. </p> <h3>7. Bank selecting is incorrect for the internal synth.</h3> <p> Change default midi mapping if necessary. </p> <h3>8. Bank selecting is incorrect for external devices.</h3> <p> Bank selecting to external devices is sent in raw format. The midi file may be incompatible with your device. </p> <h3>9. 3D visualization is upsidedown/rotated/black/blinking.</h3> <p> For those who see a rotated and blinking display, try setting Visualization-Video/Multisampling to 1 or above. If that doesn't solve your problem or you see nothing at all, please send me more details about your problem (graphics card, drivers etc.). </p> <p> Devices/drivers reported to have this issue: <ul> <li>Intel HD 5500 found in i5-5200U / official Windows driver</li> <li>Unknown low-end AMD card / official Windows driver</li> <li>Raspberry Pi 2 VC4 / Full KMS OpenGL (GLX)</li> </ul> </p> </div> </body> </html>