JohnSwenson wrote: > The DAC chip in the CSP hardware will turn off its builtin > reconstruction filter when fed with 352.8 or 384. The way we plan on > doing this for CSP is to use the libsoxr library which is included in > squeezelite. I have come up with a set of libsoxr parameters which sound > really good when fed to the DAC chip at 352.8 or 384.
That's interesting, John. I don't think that I've ever heard a DAC without a reconstruction filter. Is there a mechanism somewhere for dealing with the ultrasonic noise, which otherwise usually is removed with an LP filter? Do you have any idea how much processing power that will be needed for the upsampling? I'm trying to make an informed guess whether the WB Quad will be up for both upsampling and the use of BruteFIR/BrutefirDRC. There's got to be other convolution engines of course, but I'm not up to speed on which ones that are optimised for ARM, has a working LMS plugin and preferably is free of charge. (And I like BrutefirDRC for the loudness functionality.) Best Regards, Gandhi not often enough well recorded and mastered cds *|* dbpoweramp with accuraterip *|* flac *|* fanless asrock z77e-itx intel i5-3570t *|* ubuntu 12.04.1 lts 32-bit *|* lms 7.8.0 *|* brutefirdrc 3.0 *|* transporter (balanced out) *|* thule ia252b *|* audio physic scorpio *|* no fancy cables. *+* also some booms. *+* harmony 525s for them all, including waking the server from s3. ------------------------------------------------------------------------ Gandhi's Profile: http://forums.slimdevices.com/member.php?userid=58909 View this thread: http://forums.slimdevices.com/showthread.php?t=99395 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
