Reducing high latency when recording music on a laptop
February 16, 2010 3:39 PM Subscribe
What factors cause high latency when recording music using a laptop, and what can I do to decrease it?
posted by ZsigE to technology (6 answers total) 2 users marked this as a favorite
I've been recording music onto an old laptop (HP Pavilion running Reaper on WinXP, ~1.2GHz processor, around 300MB RAM, about 6 years old now) through a Behringer UCA202 USB interface. This has been generally fine just for recording, particularly as I'm not recording more than one track at a time, but there's the odd pop or skip in the recorded music, and the latency in the signal coming back from Reaper is completely useless for anything live.
I'd like to get the latency down to manageable levels for live music, if that's even possible (and I recognise this may mean getting a newer laptop, something I've been considering doing anyway). What are the main steps I can take, which bits of a computer are likely to be providing the bottlenecks, and what are the limiting factors in terms of hardware/software/drivers that I should be concentrating on?
(One extra detail: the audio interface shows up in Reaper as a DirectSound object, called "USB Audio Codec". I've heard that ASIO drivers are faster, but nothing shows up in the list of ASIO devices.)