when syncing to MTC, audio playbacks speed/sample rate varies

Hi there,

  I can have logic sync to MTC and start playback when I playback at another DAW. But the audio playback sometimes sounds weird , sounds like speed up/down pitch up/down (sample rate varies),  there's one setting to disable that  in Logic 9 under:

Audio Sync Status Settings

• Core Audio pop-up menu: This is where you define how your Core Audio hardware is synchronized to an external time code master.
  
  • MTC Continuous: Audio regions are started in sync, and the sample rate is continuously regulated to match variations in the time code master signal. Even very long audio regions stay in sync in this mode.
    
  • MTC Trigger + Auto Speed Detection: Similar to MTC Trigger (see below), but the tempo of the time code master is constantly monitored while Logic Pro is open. The next time you start Logic Pro, it will use an adapted sample rate. This mode keeps long regions in better sync with the time code master, although not as closely as MTC Continuous. It does, however, use a constant sample rate, which is not affected by variations in the time code master signal.
    
  • MTC Trigger: Audio regions are started in sync, but are then played at a constant sample rate, regardless of any variations in the time code master signal. Logic Pro always uses the set nominal sample rate (44.1, 48, 88.2, 96, 192 kHz). This mode is suitable when it is vital to retain the absolute pitch of a recording. If the speed of the time code master deviates from the nominal value, you may need to split long audio regions into shorter sections.
    
  • External or Free: Logic Pro has no influence on the sample rate. The audio hardware is responsible for ensuring that the position and sample rate of audio regions match. This mode is only advisable if you are sure that the Word Clock and time code master are running in sync—by using an external SMPTE or Word Clock synchronizer, for example.

But I can't find the same in Logic Pro X!!!!

Help!

Open the File > Project Settings > Synchronization > Audio pane and choose MTC Continuous or MTC Trigger + Auto Speed Detection mode in the Core Audio pop-up menu.

Edit: added image