{"id":104,"date":"2010-03-21T23:13:01","date_gmt":"2010-03-22T03:13:01","guid":{"rendered":"http:\/\/www.thesounddesign.com\/MIO\/?p=104"},"modified":"2010-07-01T14:07:56","modified_gmt":"2010-07-01T18:07:56","slug":"dsp-latency","status":"publish","type":"post","link":"https:\/\/thesounddesign.com\/MIO\/dsp-latency\/","title":{"rendered":"+DSP Latency"},"content":{"rendered":"

————–[+DSP Latency]<\/strong>————-<\/p>\n

All +DSP<\/a> and routing is programmed on a SHARC DSP chip.<\/p>\n

The routing from the master (routing) DSP to secondary (graph) DSP on legacy boxes is the source of the constant 16 samples of latency through the +DSP<\/a> processing. The 16 samples is only for the legacy +DSP<\/a> graph and it is from the source side to the process bus side<\/p>\n

The 2d Card actually reduces the total latency of the hardware by about 32 samples (48 samples if you were running through +DSP<\/a>).<\/p>\n

In 2D there is an additional two sample buffer (one to buffer the input from the ADC\/AES\/ADAT\/Firewire and one to buffer the processing before it is sent to the DAC\/AES\/ADAT\/FireWire) — so that the DMA is not using the same side of each double buffer as the processing loop is.<\/p>\n

So it is not zero, but it is really close (approximately 40-50 uSec at 1x rates and 20-30 uSec at 2x rates).<\/p>\n

And it doesn’t increase no matter how much processing you throw on, except for:<\/p>\n

The delays add latency.<\/p>\n

The Pitch Shifter adds latency.<\/p>\n

The Reverb (non-direct sound) adds latency.<\/p>\n

on ULN8 the latency from A\/D -> Mixer -> D\/A is ~67 samples.\u00a0 Adding character or EQ will not increase the latency<\/p>\n","protected":false},"excerpt":{"rendered":"

————–[+DSP Latency]————- All +DSP and routing is programmed on a SHARC DSP chip. The routing from the master (routing) DSP to secondary (graph) DSP on legacy boxes is the source of the constant 16 samples of latency through the +DSP processing. The 16 samples is only for the legacy +DSP graph and it is from…<\/p>\n

Read More “+DSP Latency”<\/span> »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-dsp"],"_links":{"self":[{"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/comments?post=104"}],"version-history":[{"count":4,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/posts\/104\/revisions"}],"predecessor-version":[{"id":106,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/posts\/104\/revisions\/106"}],"wp:attachment":[{"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/media?parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/categories?post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thesounddesign.com\/MIO\/wp-json\/wp\/v2\/tags?post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}