audiorecorder widgets example doesn't work properly if output name is assigned

Unable to prepare the media recorder.

W mediarecorder: : No default input device was set
W mediarecorder: : No default input device was set
W System.err: java.io.FileNotFoundException: /storage/emulated/0/Sounds/content:/com.android.providers.downloads.documents/document/118.m4a: open failed: ENOENT (No such file or directory)
W System.err:  at libcore.io.IoBridge.open(IoBridge.java:492)
W System.err:  at java.io.RandomAccessFile.<init>(RandomAccessFile.java:289)
W System.err:  at java.io.RandomAccessFile.<init>(RandomAccessFile.java:152)
W System.err:  at android.media.MediaRecorder.prepare(MediaRecorder.java:1091)
W System.err:  at org.qtproject.qt.android.QtNative.startQtApplication(Native Method)
W System.err:  at org.qtproject.qt.android.QtNative$7.run(QtNative.java:633)
W System.err:  at org.qtproject.qt.android.QtThread$1.run(QtThread.java:61)
W System.err:  at java.lang.Thread.run(Thread.java:923)
W System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
W System.err:  at libcore.io.Linux.open(Native Method)
W System.err:  at libcore.io.ForwardingOs.open(ForwardingOs.java:166)
W System.err:  at libcore.io.BlockGuardOs.open(BlockGuardOs.java:254)
W System.err:  at libcore.io.ForwardingOs.open(ForwardingOs.java:166)
W System.err:  at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7550)
W System.err:  at libcore.io.IoBridge.open(IoBridge.java:478)
W System.err:  ... 7 more