javax.sound.sampled.LineUnavailableException / Little Endian

[markuszeller]

On any file like WAV or MP3 I got this error now on files which worked on previous versions.
Used on P5 4.3.4 on Windows 11.

javax.sound.sampled.LineUnavailableException: line with format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian not supported.
	at java.desktop/com.sun.media.sound.DirectAudioDevice$DirectDL.implOpen(DirectAudioDevice.java:484)
	at java.desktop/com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:115)
	at com.jsyn.devices.javasound.JavaSoundAudioDevice$JavaSoundInputStream.start(JavaSoundAudioDevice.java:273)
	at com.jsyn.engine.SynthesisEngine$EngineThread.run(SynthesisEngine.java:309)
java.lang.NullPointerException: Cannot invoke "javax.sound.sampled.TargetDataLine.read(byte[], int, int)" because "this.line" is null
	at com.jsyn.devices.javasound.JavaSoundAudioDevice$JavaSoundInputStream.read(JavaSoundAudioDevice.java:300)
	at com.jsyn.devices.javasound.JavaSoundAudioDevice$JavaSoundInputStream.read(JavaSoundAudioDevice.java:291)
	at com.jsyn.engine.SynthesisEngine$EngineThread.run(SynthesisEngine.java:330)
java.lang.RuntimeException: AudioInput stop attempted when no line created.
	at com.jsyn.devices.javasound.JavaSoundAudioDevice$JavaSoundInputStream.stop(JavaSoundAudioDevice.java:318)
	at com.jsyn.engine.SynthesisEngine$EngineThread.run(SynthesisEngine.java:357)
java.lang.NullPointerException: it must not be null
	at com.hamoid.Ffmpeg.stopFfmpegOnWindows(Ffmpeg.kt:110)
	at com.hamoid.Ffmpeg.endMovie(Ffmpeg.kt:76)
	at com.hamoid.VideoExport.dispose(VideoExport.kt:493)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at processing.core.PApplet$RegisteredMethods.handle(PApplet.java:1309)
	at processing.core.PApplet.handleMethods(PApplet.java:1456)
	at processing.core.PApplet.dispose(PApplet.java:3420)
	at processing.core.PSurfaceNone$AnimationThread.run(PSurfaceNone.java:405)
NullPointerException: it must not be null

[markuszeller]

I made it work to set my current audio playback device from 48khz down to 44.1khz. But the library should not depend on that.

[kevinstadler]

Could you please try calling MultiChannel.usePortAudio(); at the start of your setup() and report back, that should greatly increase compatibility for device bitrates

[markuszeller]

Could you please try calling MultiChannel.usePortAudio(); at the start of your setup() and report back, that should greatly increase compatibility for device bitrates

Thank you for your advice. But this leads to:

RuntimeException: PortAudio is not supported on this operating system/architecture

[kevinstadler]

Ok that is interesting -- what kind of PC/CPU are you running this on?

[markuszeller]

System Info said:

• x64-based PC
• Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz, 2592 MHz, 6 Cores, 12 logic processors
• RAM 64 GB