![]() ![]() If the CPU cannot keep up, the missing chunks can be heard as crackles or dropouts. However, smaller chunks of samples are loaded/unloaded much faster to maintain consistent playback, which creates a higher CPU load on the system. Processing in larger chunks can result in audible latency, whereas smaller chunks generally create a lower global latency value. Reduced Latency When MonitoringĪs mentioned, audio is processed in chunks of individual samples. Settings in Live that affect latency Delay Compensation Some audio interfaces report inaccurate latency values.For several examples, please refer to the Use Cases section of this document. This is less predictable in the world of Digital Signal Processing (DSP), where additional layers of processing/conversion affect the overall latency by varying amounts.An easy way to calculate this is to multiply the value above by two. However, the Overall Latency of an interface includes input and output latency. The formula above applies to a single stage of signal conversion.While this may seem counterintuitive, it is for a good reason: You may have noticed that the "Overall Latency" shown in Live's Preferences does not match the formula above. As such, the minimum latency is equivalent to the time required for a single audio buffer to be processed within a given rate of samples per second.īuffer Size (number of samples) ÷ Sample Rate (kHz) = Expected Latency (ms).įor example, while running with a Buffer Size of 256 samples and a Sample Rate of 44.1 kHz, an audio interface will convert the incoming signal with 5.8 milliseconds of expected latency before sending it into Live ( 256 samples ÷ 44.1 kHz). How Audio Interface Latency is Calculatedįor a signal to move from one point in the chain to the next, at least one audio buffer must be fully processed. In the DAW’s signal processing ( e.g., monitored tracks, native effects, plug-ins, etc. ![]() Between the Audio Interface and the DAW.The operating system (which may require additional time to process and mix streams from other applications before passing it out to the speakers).( Larger buffer sizes take longer to process, which increases the overall latency ). In most studios, this task is handled by an audio interface.Īn audio buffer is a region of physical memory storage used to temporarily store chunks of data as the signal travels from one location to the next. Conversely, Digital-to-Analog (DA) Converters convert data into an analog audio signal that is sent to the speakers or audio effects. In digital audio, latency is introduced by signal conversion and audio buffers within the signal path.Īn Analog-to-Digital (AD) signal converter transforms incoming audio into data that the computer can process. Latency cannot be avoided, but it can be understood ! What Causes Latency In a Digital Audio Workstation, some amount of latency is always necessary to allow audio data to be captured by your audio interface, passed to your DAW (or other application), processed by instruments/effects within the DAW, and then passed back out to the output of the audio interface. Latency refers to a short period of delay between when a signal enters a system and when it emerges from it. Preparing your system for sample-accurate recording.How Audio Interface Latency is Calculated.For more specific troubleshooting advice, please take a look at our article on How to reduce Latency. Note: The following article is purely informational. ![]()
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