&gt; Which parts of the software stack are causing it?<p>There is a diagram lower down in the article with the components (ALSA, audioflinger etc).<p><a href="http:&#x2F;&#x2F;www.androidpolice.com&#x2F;wp-content&#x2F;uploads&#x2F;2015&#x2F;11&#x2F;nexus2cee_Android-Audio-Path-Latency-Superpowered-Audio700px.gif" rel="nofollow">http:&#x2F;&#x2F;www.androidpolice.com&#x2F;wp-content&#x2F;uploads&#x2F;2015&#x2F;11&#x2F;nexu...</a>