Crackling with Thunderbolt resident Audio interface

Hello

I just bought a new Macbook Pro 15 inch retina, installed with El Capitan 10.11.4 and Logic Pro X, with a new interface reside Audio T4 Thunderbolt, and there is a cracking and sound distortion, crossing the input string. The output is very good. Sometimes the crackling can range from 30 minutes without past and other times it is constant. Unplug and plug cable Thunderbolt and change the port, it can do a little better or worse elsewhere. The crackling and distortion has also nothing to do with the entry levels. I tried:

  • Replace all cables (audio, stroke, etc.).
  • Disconnect other USB devices and even the power of the computer agreement. Also unplugged all other cables, including lunch, from the interface.
  • Purchase of an ALL-NEW resident Audio T4 interface, thinking the problem was inside the unit. It wasn't.
  • Update, uninstalling and reinstalling the drivers to interface
  • Turn off the Thunderbolt bridge under 'network '.
  • Make sure bit depth was the same on the interface and macbook

I read on other musicians recording in trouble with DAWs and interfaces after the upgrade of the El Capitan, but not with this problem. This is my first time to go from a mac to a PC and am quite impressed so far. I'm grateful for any help.

For me, when crackle happens "at any time", it is a good indication of low buffer I/O.

Open CMD-comma logic preferences and click the "Audio" tab at the top. Then, make sure that you are on the "Devices" menu Input and output device are your interface. And nothing below your IO buffer size. try increasing this value to 128, 256, 512 and so on. In other words, the buffer is a small part of the memory where the incoming audio stream is buffered and the CPU can perform any processing required on this subject. If the CPU can't get enough data quickly enough, it starts to sizzle. More a buffer gives the CPU more time to perform a treatment. Usually, this is the case for systems with many things, for example, dozens of simultaneous tracks with many plugins active or slow systems. However, this is not the case for your new, shiny things unless you really have dozens of titles and many plugins per track. Or all of a sudden some background process kicks in and use the time processor and disk, such as a Time Machine backup and others.

Make sure you plugged your audio interface directly to the Mac, not a hub or something. This introduces a latency and the buffer drains faster.

Give it a try.

Tags: Professional Applications

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