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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 ,

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 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

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,

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

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

Short question: is there way to tell EM to actually send data after send_data call? I''m building a file transferring app. I send Mashal.dump''ed metadata first, and then - the file contents (chunked). I found a silly bug: receive_data() gets marshalled metadata and the first chunk of the file in a single variable. Like that: c1.send_data("meta")

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:

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

...Jeremy Allison <jra at samba.org> * BUG 10187: Missing talloc_free can leak stackframe in error path. * BUG 10196: RW Deny for a specific user is not overriding RW Allow for a group. o Anand Avati <avati at redhat.com> * BUG 10224: vfs_glusterfs: Implement proper mashalling/unmarshalling of ACLs. o Andrew Bartlett <abartlet at samba.org> * BUG 10052: dfs_server: Use dsdb_search_one to catch 0 results as well as NO_SUCH_OBJECT errors. o Samuel Cabrero <scabrero at zentyal.com> * BUG 9091: s4-dns: dlz_bind9: Create dns-HOSTNAME ac...

...Jeremy Allison <jra at samba.org> * BUG 10187: Missing talloc_free can leak stackframe in error path. * BUG 10196: RW Deny for a specific user is not overriding RW Allow for a group. o Anand Avati <avati at redhat.com> * BUG 10224: vfs_glusterfs: Implement proper mashalling/unmarshalling of ACLs. o Andrew Bartlett <abartlet at samba.org> * BUG 10052: dfs_server: Use dsdb_search_one to catch 0 results as well as NO_SUCH_OBJECT errors. o Samuel Cabrero <scabrero at zentyal.com> * BUG 9091: s4-dns: dlz_bind9: Create dns-HOSTNAME ac...

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>

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 am a new member to the speex-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 speex for 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 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>