Why is Java's TargetDataLine.read() so slow?

Asked Apr 30 '17 at 00:23

Active Apr 30 '17 at 00:23

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I am developing a VOIP application that uses Java's built in TargetDataLine.read() method to store microphone input in a byte array buffer. However, this function seems to run for around 500ms longer than it should. Why is there this extra latency and are there any other methods that I can use to reduce the latency? I am using 16bit 40000Hz PCM signed.

All responses will be very much appreciated

asked Apr 30 '17 at 00:23

Syd Lambert

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What is it reading *from?* – user207421 Apr 30 '17 at 00:49
@EJP I am getting the data from the microphone using `tLine = (TargetDataLine) AudioSystem.getLine(new DataLine.Info(TargetDataLine.class, getAudioFormat()));` – Syd Lambert Apr 30 '17 at 17:49
For better help sooner, post a [MCVE] or [Short, Self Contained, Correct Example](http://www.sscce.org/). – Andrew Thompson Apr 30 '17 at 23:03
This is not a typical latency for the TargetDataLine.read(). The problem is most likely elsewhere. – Phil Freihofner May 01 '17 at 01:22

Why is Java's TargetDataLine.read() so slow?

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