Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-17 Thread Max Kellermann
On 2009/06/16 19:49, Grant emailgr...@gmail.com wrote: Does this behavior make sense? Is an oprofile report necessary here? Without oprofile, we can only guess. You've been complaining about CPU usage for 5 weeks now, and still no oprofile, although that was the first thing I asked for.

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-16 Thread Grant
I've got Best working after switching from oss to alsa in audio_output. I cannot imagine how OSS or ALSA could have any impact on the resampler.  Can you give me an oprofile report of both configurations? I'm curious who is really wasting all those CPU cycles. I've installed oprofile.  

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-04 Thread Grant
how 'bout upsampling to 48KHz?  It should sound significantly better than 44.1KHz. No, every resampling process reduces the (theoretical) quality of the file.  Now if a 44.1 file upsampled to 96 sounds better than native 44.1 playback, then that must be a hardware quirk.  Maybe the sound

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-03 Thread Grant
Upsampling works, but only multiples of the native source - ie 44.1 to 96 the computer is not powerful enough. however 44.1 to 88.2 or 176.4 works also. Don't even try Secret Rabbit Code upsampling in Foobar, would stall right from the first second with the processor at 100%!!

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-03 Thread Max Kellermann
On 2009/06/03 22:08, Stefan Monnier monn...@iro.umontreal.ca wrote: how 'bout upsampling to 48KHz? It should sound significantly better than 44.1KHz. No, every resampling process reduces the (theoretical) quality of the file. Now if a 44.1 file upsampled to 96 sounds better than native 44.1

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-03 Thread Stefan Monnier
Maybe the sound chip has a fixed sample rate, and plugs a poor hardware resampler in front of it. That's what I assumed, yes, otherwise his report makes no sense. Stefan -- OpenSolaris 2009.06 is a cutting

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-06-02 Thread Max Kellermann
On 2009/05/29 17:36, Grant emailgr...@gmail.com wrote: Upsampling works, but only multiples of the native source - ie 44.1 to 96 the computer is not powerful enough. however 44.1 to 88.2 or 176.4 works also. Don't even try Secret Rabbit Code upsampling in Foobar, would stall right from the

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-05-29 Thread Grant
On Wed, May 13, 2009 at 9:30 AM, Max Kellermann m...@duempel.org wrote: On 2009/05/12 21:20, Grant emailgr...@gmail.com wrote: I've got Best working after switching from oss to alsa in audio_output. I cannot imagine how OSS or ALSA could have any impact on the resampler.  Can you give me an

Re: [Musicpd-dev-team] Best Sinc Interpolator

2009-05-15 Thread Max Kellermann
On 2009/05/14 17:36, Grant emailgr...@gmail.com wrote: I've got Best working after switching from oss to alsa in audio_output. I cannot imagine how OSS or ALSA could have any impact on the resampler.  Can you give me an oprofile report of both configurations? I'm curious who is really