Both from network and local file. Nothing to see in logs, but no more sound and much l

From the Javadoc: <div class="snippet-clipboard-content notranslate position-relat

Bug: playback randomly stops after heavy stuttering about immerse HOT 2 OPEN

ewjmulder commented on August 27, 2024

Bug: playback randomly stops after heavy stuttering

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Comments (2)

ewjmulder commented on August 27, 2024

Possible cause: SourceDataLine stops because buffer underrun. That means:

Audio stops playing
Buffer will quickly fill up again
Number of frames needed will remain 0
Mixer and Step will keep running but read no more audio
End of audio stream is never reached
Summary: immerse grinded to a halt and is frozen, but no errors occur

Question: does this happen if one sound card stream stops or all? Probably they all trigger on the same unerrun anyway. A little while empty seems ok to recover, hence the stuttering, but too much probably causes a stop/pause in playing and thus the observed behaviour.

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ewjmulder commented on August 27, 2024

From the Javadoc:

 * The <code>SourceDataLine</code> interface provides a method for writing
 * audio data to the data line's buffer. Applications that play or mix
 * audio should write data to the source data line quickly enough to keep the
 * buffer from underflowing (emptying), which could cause discontinuities in
 * the audio that are perceived as clicks.  Applications can use the
 * <code>{@link DataLine#available available}</code> method defined in the
 * <code>DataLine</code> interface to determine the amount of data currently
 * queued in the data line's buffer.  The amount of data which can be written
 * to the buffer without blocking is the difference between the buffer size
 * and the amount of queued data.  If the delivery of audio output
 * stops due to underflow, a <code>{@link LineEvent.Type#STOP STOP}</code> event is
 * generated.  A <code>{@link LineEvent.Type#START START}</code> event is generated
 * when the audio output resumes.

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