Record with Low Latency Monitoring mode in Logic Pro for iPad
All plug-ins cause timing delays, known as latency, when processing audio. Small delays are not audible; however, the more processor-intensive a plug-in is, the bigger its latency will be. In addition, many channel strips in your project might have different plug-ins, meaning different tracks are played back with a different delay, causing sync issues. Logic Pro automatically applies plug-in delay compensation (PDC) by detecting the channel strip with the maximum latency due to its latency-causing plug-ins, and based on that, delaying the other channel strips in real time by an individual amount so that all tracks play back in sync.
Although this slight playback delay is not a problem when you play back your project during mixing, it makes it difficult to perform with proper timing when you record on a track. To avoid that delay, you can turn on Low Latency Monitoring mode that turns off plug-in delay compensation on the focused instrument track and any record-enabled tracks. This affects the plug-ins and the Aux sends on those tracks:
Bypassed plug-ins: Any plug-in that pushes the track’s total latency value above the set limit is bypassed. Those plug-ins show a gray plug-in button with orange text in the Mixer and an orange plug-in name and Low Latency Monitoring mode icon in the Details view of the Plug-ins area.
Focused instrument tracks show the bypassed slots once you start the playback.
Deactivated Aux sends: Every Send slot is turned off. This is indicated by a gray Send button with orange text and an orange Low Latency Monitoring mode icon in the Sends view of the Plug-ins area.
Tip: A Low Latency Safe option in the Sends pop-up menu lets you turn on a Send slot again, which is useful when you routed the track’s signal to a reverb that you want to hear during recording.
Note: In addition to the plug-in latencies, there are other components that introduce latencies. For example, MIDI controllers connected via Bluetooth, the input and output stage of your selected audio interface, or the I/O Buffer Size value. For details, see Audio Devices settings.
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