[Discuss-gnuradio] Re: About Latency

2009-04-30 Thread William Sherman
never mind just realized -- Posted via http://www.ruby-forum.com/. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: About Latency

2009-04-30 Thread William Sherman
Hi, Where did he get this equation from? (What is this equation f?) > Hi Eric: > > I have already read that paper before. As that paper mentions, the USB > delay > is according to the equation > > f(512, fusb_block_size*fusb_nblock) > - > fs*sample_size

[Discuss-gnuradio] Re: About Latency

2007-10-04 Thread Eric Blossom
On Thu, Oct 04, 2007 at 09:46:36PM +0800, KC Huang wrote: > Hi Eric: > > I have already read that paper before. As that paper mentions, the USB > delay is according to the equation > > f(512, fusb_block_size*fusb_nblock) > - > fs*sample_size

[Discuss-gnuradio] Re: About Latency

2007-10-04 Thread KC Huang
Hi Eric: I have already read that paper before. As that paper mentions, the USB delay is according to the equation f(512, fusb_block_size*fusb_nblock) - fs*sample_size , which f(x,y) is at least x and at m

[Discuss-gnuradio] Re: About Latency

2007-10-04 Thread Eric Blossom
On Thu, Oct 04, 2007 at 03:22:40PM -0400, KC Huang wrote: > Hi all: > > I have two questions about Gnuradio latency: > > 1. In transmit path, the USB delay is constant due to the 32KB buffer > between "signal source output" and "USB". You misunderstand how things work. Please take a look at Th