Hi, First:
I can confirm this is a bug. Calling getReceiver before opening the synthesizer results in NullPointerException. This is not supposed to happen. Thanks for noticing this. Second: I tried our way to change volume, and it does work with Gervill. Please explain better how it failed. I uploaded updated version of gervill with this bug fixed: Please download "gervill-0.8-fix1.jar" from: https://gervill.dev.java.net/servlets/ProjectDocumentList?folderID=0 and let me know how this works. regards, Karl ________________________________________ Frá: [EMAIL PROTECTED] [EMAIL PROTECTED] Fyrir hönd Andreas Wenger [EMAIL PROTECTED] Sent: 6. febrúar 2008 17:08 Viðtakandi: [email protected] Efni: [Audio-engine-dev] Possible bugs Hi, I'm no experienced Java Sound user, so please forgive me if the following "bugs" are not caused by Gervill but my own program. I tried to integrate Gervill into my program Xenoage Player, which is a free MIDI player for MusicXML files, http://www.xenoage.com/player/ First: This works: > sequencer = MidiSystem.getSequencer(); > synthesizer = MidiSystem.getSynthesizer(); But this fails (works perfectly with old Java Sound): > sequencer = MidiSystem.getSequencer(false); > synthesizer = MidiSystem.getSynthesizer(); > Transmitter seqTransmitter = sequencer.getTransmitter(); > seqTransmitter.setReceiver(synthesizer.getReceiver()); with > java.lang.NullPointerException > at com.sun.media.sound.SoftReceiver.<init>(Unknown Source) > at com.sun.media.sound.SoftSynthesizer.getReceiver(Unknown Source) > at com.xenoage.player.Player.<init>(Player.java:79) Line 79 is "seqTransmitter.setReceiver(synthesizer.getReceiver());" Second: This is the way I change the playback volume (maybe this is bad code, but it was the only way it worked for me with old Java Sound): > MidiChannel[] channels = synthesizer.getChannels(); > //... > for (int i = 0; i < channels.length; i++) > { > channels[i].controlChange(7, (int) (volume * max)); > } This doesn't change the volume, while old Java Sound does. If it helps, code is available by SVN, see the website. If these are no bugs, please forgive me ;-) Bye, Andi _______________________________________________ audio-engine-dev mailing list [email protected] http://mail.openjdk.java.net/mailman/listinfo/audio-engine-dev No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.20/1261 - Release Date: 5.2.2008 20:57 _______________________________________________ audio-engine-dev mailing list [email protected] http://mail.openjdk.java.net/mailman/listinfo/audio-engine-dev
