similar to: Need for help for audio compression in embedded system (iMote2)

Hi All, ?? I am a new member to the vorbis-dev mailing list. i hope that u receive the help that i've been searching for. I need to compress audio samples captured by wireless sensor node (16-bit PCM at 8Khz). can i use vorbis i such an embedded system environment that has the following HW/SW specifications: -416 MHz Microprocessor(ARM architecture, Intel Xscale family) -32 MB RAM Beside

Hi Mashal, 2012/3/14 Mashal al-shboul <shboul8989 at yahoo.com>: > Hi Blaise Potard, > Thank you for help. > Actually,i am sure that my samples are unsigned? , specifically, of type > uint16_t which is unsigned 2-bytes, these samples are provided by an audio > driver for an audio subsystem (microphone ADC...) in a wireless sensor > node(intelmote2 ), following is the

Thanks for replying. actually 2^15 in decimal is the same as 0x8000 in hex. the idea is clear for me that i should scale down each unsigned sample by 0x8000 for becoming signed. I hope that will work correctly as input raw samples to Speex codec. do you think so ? Regards, Mash'al ________________________________ From: Steve Checkoway <s at pahtak.org> To: Mashal al-shboul

Thanks a lot for replying, The question now is , after subtracting 32767 from each unsigned sample, will the new signed samples represent the same original voice ? ???? For explanation, assume "Hi" is said in 8000 unsigned sample ,if i subtract 32767 from each sample and play the resulting 8000 sample as signed PCM samples,will they be "Hi" ?! Forgive me about my questions ,

I don't understand why you're subtracting 2^15 - 1. Assuming you really do have unsigned samples (which is very odd) that have 0x8000 as the mid point of the range, then you need to subtract 0x8000, as I believe I pointed out already. By mid point, I mean if you have a pure tone (i.e., a sine wave) that has unsigned range 0 to 0xffff, then the mid point is 0x8000. The mid point should be

Thanks for the reply, i added (LDFLAGS += -L/usr/local/lib -lspeex -lm) to Makefilebut the error is still appearing ! /tmp/ccDFH8gi.o(.text+0x179c): In function `main': : undefined reference to `BlinkC$speex_bits_init' collect2: ld returned 1 exit status make: *** [exe0] Error 1 i am trying to guess what is missed to correctly link to the lib .Do you have suggestions? Regards,

Thanks for your appreciated help. i found casting fromunsigned short to short gives different value: unsigned short FFFF=65535 where short FFFF= -1. however, can i configure speex codec (specifically speex_encode_int function) to take input of type unsigned short instead of short so that i avoid casting errors ? Regards, Mashal ________________________________ From: Yanick Bourbeau

Hi all speex developers, ??? I have encoded 10 seconds buffer of Mic voice (raw) using speex on an embedded device, then transmitted it to a PC where i decoded the voice,in a way similar to the sampleenc.c and sampledec.c on website, ?BUT my problem is that the decoded voice is totally different from the original,what i hear is just noise !! what is possible to be the reason ? Any help is

Hi All, i need your help in determining the problem in the following sample code (taken from speex manual) for fixed point encoding. i tested encoding a 160 sample frame and then decoding it back But The problem is that the decoded frame is totally different from the original frame(see output below).What is the possible reason for this?.thanks for any help #include<stdio.h>

On Tue, Sep 15, 2015 at 12:31:25PM +0900, Timo Sirainen wrote: > On 12 Sep 2015, at 04:45, Bradley Giesbrecht <pixilla at macports.org> wrote: > > > > Is the Dovecot Object Storage plugin still available for purchase? > > > > It's available, but at least for now we're only selling it to big customers. Well how big? Would a univeristy with 25.000 users

Hi; I would like to fit a contiuous right skewed dist. to a set of data. So, I want to use MLE or Robust estimation of the parameters, then use A-D or K-S test or Robust alternative for the goodness-of -fit. Also I would rank the fitted distributions according to the p-value of the test. Does anyone know how I do this in R. any backages of Robust estimation and for goodness-of-fit? Thank you

Hi Could anyone please tell me what to do to resolve this error message? I tried to run a gam with the mgcv package and got the following error: "Error in qr.qty(qrc, sm$S[[1]]): NA/NaN/Inf in foreign function call (arg 5)" (I have 116 covariates, I'm using the "cr" basis to speed things up, the binomial family and, where necessary, have set the required k to lower than

Hi, I tried to load a .RData object on unix system using R, it gives error: Error: restore file may be empty -- no data loaded In addition: Warning message: file 'junk3.RData' has magic number '' Use of save versions prior to 2 is deprecated This happens only for using MY user account for the Unix system. I tried to use a friends's user account to load the same data

Dear List, I have two questions about how to do predictions using lrm, specifically how to predict the ordinal response for each observation *individually*. I'm very new to cumulative odds models, so my apologies if my questions are too basic. I have a dataset with 4000 observations. Each observation consists of an ordinal outcome y (i.e., rating of a stimulus with four possible

Hi all, I am new to the mailing list , and i need your help. i want to compress audio raw data (PCM) after i have captured them in (sensor) and get them as 16-bit integr samples. that is, when i capture voice for,say, 1 second, i get an array of 8 kilo sample, and I NEED TO COMPRESS THIS SO THAT I GET A SMALLER SIZE BEFORE I TRANSMIT THEM WIRELESSLY. Does Speex allow me to such compression ? Any

Hi All, i have configured speex1.2rc1 for xscale-elf (ARM architecture) ,then executed MAKE and MAKE INSTALL. so, i obtained libspeex.a in the /usr/local/lib with libogg.a compiled as well. but i when i link the library to my program (by adding LDFLAGS += -lspeex -lm ), and try to compile, i get this error: /usr/lib/gcc/xscale-elf/3.4.3/../../../../xscale-elf/bin/ld: cannot find -lspeex collect2:

Dear Sirs! My name is Mohamad TALIAA and I am supposed to be the BUDDY for Viola Rossini at the Univeristy of Vienna! The ERASMUS Bureau at Vienna just provided me with a wrong email address! I reported to them the mistake but I just was told to look for it maybe on the internet or change the extension at the end. Now I just came to your site as i looked for Viola Rossini at google.at I also

On 25 Sep 2015, at 17:56, Hans Morten Kind <Kind at adm.uib.no> wrote: > > On Tue, Sep 15, 2015 at 12:31:25PM +0900, Timo Sirainen wrote: >> On 12 Sep 2015, at 04:45, Bradley Giesbrecht <pixilla at macports.org> wrote: >>> >>> Is the Dovecot Object Storage plugin still available for purchase? >>> >> >> It's available, but at

I'm using winbind for authentication agains Windows 2003 server here at the college. The system has successfully joined he Windows domain and domain logins works wonderful 5 minutes after booting. That's my problem, domain logins does not work until the winbind daemon has established contact with the password server, and this take approx 5 minutes after a reboot. I think the problem is

Hello, I was trying to compile R-base-0.64.1 on Linux/Alpha (RedHat 6.0). It compiled but it couldn't pass the make check (choked with tests/Examples/modreg-Ex.R). I used gdb, and it turned out that the src/library/modreg/src/sinerp.f was the problem. else if(j.eq.nk)then c1 = 0d0 c2 = 0d0 c3 = 0d0 endif > p1ip(1,j) = 0d0-