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----
-layout: default
-title: Latency Considerations
-menu_title: Latency
----                        
-
-<p>  
-  In the days of analog tape recording, the routing of monitor signals was
-  performed with relays and other analog audio switching devices.  Digital 
-  recorders have the same feature, but may impart some 
-  <a
-  href="/synchronization/latency-and-latency-compensation/"><dfn>latency</dfn></a> 
-  (delay) between the time you make a noise and the time that you hear it 
-  come back from the recorder.
-</p>
-<p>
-  The latency of <em>any</em> conversion from analog to digital and back to 
-  analog is about 1.5&ndash;2&nbsp;ms. Some musicians claim that even the 
-  basic <abbr title="Analog to Digital to Analog">A/D/A</abbr> conversion 
-  time is objectionable. However even acoustic instruments such as the piano 
-  can have approximately 3&nbsp;ms of latency, due to the time the sound
-  takes to travel from the instrument to the musician's ears. Latency below 
-  5&nbsp;ms should be suitable for a professional recording setup. Because
-  2&nbsp;ms are already used in the A/D/A process, you must use extremely low 
-  <dfn>buffer sizes</dfn> in your workstation <abbr title="Input/Output">I/O</abbr> 
-  setup to keep the overall latency below 5ms. Not all 
-  <a href="/setting-up-your-system/the-right-computer-system-for-digital-audio/">computer audio systems</a> 
-  are able to work reliably at such low buffer sizes.
-</p>
-<p>
-  For this reason it is sometimes best to route the monitor signal
-  through an external mixing console while recording, an approach taken by
-  most if not all professional recording studios. Many computer I/O devices 
-  have a hardware mixer built in which can route the monitor signal "around"
-  the computer, avoiding the systemlatency.<br />
-  In either case, the monitoring hardware may be digital or analog.  And in 
-  the digital case you will still have the A-D-A conversion latency of
-  1&ndash;2&nbsp;ms.
-</p>
-
-{% children %}