search for: iir

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-05:06.iir Security Advisory The FreeBSD Project Topic: Incorrect permissions on /dev/iir Category: core Module: sys_dev Announced: 2005-05-06 Credits: Christian S.J. Peron Aff...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-05:06.iir Security Advisory The FreeBSD Project Topic: Incorrect permissions on /dev/iir Category: core Module: sys_dev Announced: 2005-05-06 Credits: Christian S.J. Peron Aff...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-05:06.iir Security Advisory The FreeBSD Project Topic: Incorrect permissions on /dev/iir Category: core Module: sys_dev Announced: 2005-05-06 Credits: Christian S.J. Peron...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-05:06.iir Security Advisory The FreeBSD Project Topic: Incorrect permissions on /dev/iir Category: core Module: sys_dev Announced: 2005-05-06 Credits: Christian S.J. Peron...

...36daad0ac704e6d5c1b75789f371ef5b053c1 “The patch below works around a minor bug found in the UART of the remote management card used in many HP ia64 and parisc servers (aka the Diva UARTs). The problem is that the UART does not reassert the THRE interrupt if it has been previously cleared and the IIR THRI bit is re-enabled. This can produce a very annoying failure mode when used as a serial console, allowing a boot/reboot to hang indefinitely until an RX interrupt kicks it into working again (ie. an unattended reboot could stall).” That matches my symptoms exactly, which suggests that the Xen...

...floating point versions. No. FFT's require higher precision than filters. Also the filters are only applied in 40-sample chunks so the cost of the FFT would be much higher. Last thing: I don't think you can handle the current (direct form II) memories with an FFT. > Now the problem of IIR filters: IIR filters and fixed point math do not > mix well. Truncation errors and limited dynamic range problems are > amplified by the feedback nature of the IIR. Speex makes sure the filters are never too close to being unstable, so I'm confident there will be no problem with the IIR....

Hello, I try to compile the driver zaptel and they give the following error: linux01:/usr/src/zaptel# make install gcc -Iir/include -O6 -DMODULE -D__KERNEL__ -DEXPORT_SYMTAB -Iir/drivers/ l -I. -Wstrict-prototypes -fomit-frame-pointer -Iir/drivers/net/wan -Iir /net -DSTANDALONE_ZAPATA -o zaptel.o -c zaptel.c In file included from zaptel.c:44: /usr/include/linux/module.h:21: linux/modversions.h: No such file or dir m...

...iciency and accuracy. For fewer than ~64 taps, the O(nh) complexity of a directly calculated FIR is better than the O( log(nh) ) complexity that comes from using FFTs. So for FIR filters with length of 40, direct calculation probably would be a better choice. <p>>> Now the problem of IIR filters: IIR filters and fixed point math do >> not mix well. Truncation errors and limited dynamic range problems are >> amplified by the feedback nature of the IIR. > > Speex makes sure the filters are never too close to being unstable, so > I'm confident there will be no...

<with Prof. Farnsworth voice> "Good News, everyone". I've just kicked off project "Sphinx". Which is supposed to sound like "Speex" merged with "INT". ;) Meaning I am working on an integer encoder and decoder. It looks like I will be pulling in a new "integer plumbing" into the foundation of the codec, comparing the results with the old

...sr/include/dev/firewire/@/dev/dpt/dpt.h:865: warning: `DPT_BLINKLED' redefined^M /usr/obj/usr/src/i386/usr/include/dev/firewire/@/dev/asr/osd_unix.h:288: warning: this is the location of the previous definition^M In file included from :21:^M /usr/obj/usr/src/i386/usr/include/dev/firewire/@/dev/iir/iir.h:381: warning: `LUN_MASK' redefined^M /usr/obj/usr/src/i386/usr/include/dev/firewire/@/dev/dpt/dpt.h:138: warning: this is the location of the previous defi nition^M /usr/obj/usr/src/i386/usr/include/dev/firewire/@/dev/iir/iir.h:382: warning: `TARGET_MASK' redefined^M /usr/obj/usr/src/...

...hat didn't use assembly. I tried to find an ANSI C fft routine that would do fixed point. I couldn't, so I wrote KISS FFT: a simple, portable radix2 FFT library that can be compiled to use either fixed or floating point math. See http://sourceforge.net/projects/kissfft Now the problem of IIR filters: IIR filters and fixed point math do not mix well. Truncation errors and limited dynamic range problems are amplified by the feedback nature of the IIR. There are a bunch of IIR filters used in speex. It seems to me that using the rounded impulse responses of those filters (up to limit of...

We're having problems with FreeBSD 5.4, 6.0, and 6.1 and an ICP Vortex GDT8546RZ 4 port SATA RAID card in a Tyan S2460 system with dual AMD Athlon MP 1600+ CPUs. We do not have any problems with this configuration under FreeBSD 4.11, and we have the same ICP cards in Tyan based Opterion system (S2882 and S4882) run with out problems under FreeBSD 5.4 and 6.1. We can reproduce the problem on

...far > I am not getting any feedback, so since it seems that > this particular hardware has reached EOL, I was wondering > if, > a) it's true, > b) drop it, and replace it. > c) should time be spent in getting it to work again. I'm not very sure about your problem with iir(4). A diff against RELENG_7_1 does not reveal any change on the driver itself. Are you sure that 7.1-R can have the device working? Cheers, - -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBS...

Hi, after upgrading to 7.2, booting the kernel gets stuck with: run_interrupt_driven_hooks: still waiting after 300 seconds for xpt_config from a 7.1 dmesg, it seems that it's in the iir driver. danny

-----Original Message----- From: Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> To: ??????? ??????? <altersoft at mail.ru> Date: Sat, 02 Aug 2008 07:54:34 -0400 Subject: Re: [Speex-dev] fir_mem16,iir_mem16 and filter_mem16 optimisations > > ??????? ??????? a ?crit : > > I have some questions about that functions: fir_mem16, iir_mem16 and filter_mem16. > > Filtering is very slow on TI DSP, and i want to optimise it. > > Can somebody give me formulas which discribe work...

When I tried to compile the vorbis module as a Framework, using ProjectBuilder, I got 1058 warnings (excess elements in scalar initializer, near initialization for ''psy_set0.toneatt', 'vorbis_ftoi' defined but not used, unused variable 'k', braces around scalar initializer, and so on) and 65 errors. Some examples of errors: ------- vorbis/lib/psytune.c: undefined

John, Thanks for the reply! You mentioned output sample rates should be 44100 or 48000, should I worry about input (Mic) Sample rates as well? (Currently I was requesting the sample rate on both ends to be 16000 samplesPerSecond, for ease of passing into the codec) Also, do you recommend any particular resampler that I should use, or are any of the ones out there probably okay, or should

...upport higher than 48KHz (especially since this is lossy compression, anyway). However, in general, that's not all you do with audio data. 192KHz is useful for the same reason that 24 bits is useful. Digital operations often need the extra margin for many of the operations being carried out (IIR-type effects, mixing multiple sources, etc.) This is especially true for the so-called "wet" effects that tend to mangle phase vs frequency (vs "dry" effects which tend to only affect amplitude vs frequency). -a On 6/6/14, 11:03 AM, Gregory Maxwell wrote: > On Sat, Feb 22...

Hi, IIR/UC there have been a couple of discussions lately about possible evolution of libvirt's network management features to eventually support more kinds of virtual networking technologies like Openvswitch, VDE,... Could a kind and informed soul keep us on touch with progress in the field ? Thank...

...39;m speech recognition researcher and would like to do some research on recognition robustness in echo distortion of speech signal. Since VOIP is becoming wide spread, I'd like to simulate (one or more) common echo distortions that mostly appear in voip communications ? Any example, FIR or IIR filter or acoustical system response ? Any other distortion worth researching ? Thanks in advance, regards, Rob.