Hi,

I'm a bit confused abotu the fft size, I tried different settings, but the one that's working doesn't seem to be right. I'm starting with interleaved pcm buffer of 2048 samples(1024 per channel), therefor I should initialised mPcmData with 1024 samples. The spectrum array size then should be 1024 too, 512 bin frequencies followed by 512 frequency labels. The xtract_init_fft initialisation really confuses me, in my understanding the fft size is 512, however the only value that works is 2048, in the screenshot below you can see different results using 2048, 1024 and 512 fft size.

#define PCM_SIZE 1024

// init
mPcmData    = std::shared_ptr<double>( new double[ PCM_SIZE ] );
xtract_init_fft( PCM_SIZE << 1, XTRACT_SPECTRUM );

// ...

// get pcm data 2048 samples
audio::Buffer32fRef buff = mPcmBuffer->getInterleavedData();

for( size_t k=0; k < PCM_SIZE; k++ )
    mPcmData.get()[k] = buff->mData[k*2];

// ...

// get spectrum
argd[0] = SAMPLERATE / (double)PCM_SIZE;
argd[1] = XTRACT_MAGNITUDE_SPECTRUM;
argd[2] = 0.0f;
argd[3] = 0.0f;
xtract_spectrum( mPcmData.get(), PCM_SIZE, _argd, mSpectrum.get() );

I'm trying to implement simpletest.c example in c++, the app throws malloc error, while running Guard Malloc the app breaks on vDSP_ctozD called by XTRACT_SPECTRUM, however despite it breaks, it output the data correctly(spectral bins, MFCCs).

The simpletest example crashes on Linux:

*** glibc detected *** /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest: free(): invalid next size (normal): 0x085ec250 *** ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(+0x75ee2)[0xb75e8ee2] /home/ryan/Downloads/LibXtract-master/src/.libs/libxtract.so.0(xtract_init_mfcc+0x494)[0xb773be44] /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest[0x804877f] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb758c4d3] /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest[0x804886d] ======= Memory map: ======== 08048000-08049000 r-xp 00000000 08:01 3550801 /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest 08049000-0804a000 r--p 00000000 08:01 3550801 /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest 0804a000-0804b000 rw-p 00001000 08:01 3550801 /home/ryan/Downloads/LibXtract-master/examples/simpletest/.libs/lt-simpletest 085d1000-085f2000 rw-p 00000000 00:00 0 [heap] b7512000-b752e000 r-xp 00000000 08:01 132020 /lib/i386-linux-gnu/libgcc_s.so.1 b752e000-b752f000 r--p 0001b000 08:01 132020 /lib/i386-linux-gnu/libgcc_s.so.1 b752f000-b7530000 rw-p 0001c000 08:01 132020 /lib/i386-linux-gnu/libgcc_s.so.1 b7545000-b7546000 rw-p 00000000 00:00 0 b7546000-b7570000 r-xp 00000000 08:01 131202 /lib/i386-linux-gnu/libm-2.15.so b7570000-b7571000 r--p 00029000 08:01 131202 /lib/i386-linux-gnu/libm-2.15.so b7571000-b7572000 rw-p 0002a000 08:01 131202 /lib/i386-linux-gnu/libm-2.15.so b7572000-b7573000 rw-p 00000000 00:00 0 b7573000-b7716000 r-xp 00000000 08:01 131085 /lib/i386-linux-gnu/libc-2.15.so b7716000-b7717000 ---p 001a3000 08:01 131085 /lib/i386-linux-gnu/libc-2.15.so b7717000-b7719000 r--p 001a3000 08:01 131085 /lib/i386-linux-gnu/libc-2.15.so b7719000-b771a000 rw-p 001a5000 08:01 131085 /lib/i386-linux-gnu/libc-2.15.so b771a000-b771d000 rw-p 00000000 00:00 0 b7730000-b7732000 rw-p 00000000 00:00 0 b7732000-b7749000 r-xp 00000000 08:01 3550740 /home/ryan/Downloads/LibXtract-master/src/.libs/libxtract.so.0.0.0 b7749000-b774a000 r--p 00016000 08:01 3550740 /home/ryan/Downloads/LibXtract-master/src/.libs/libxtract.so.0.0.0 b774a000-b774b000 rw-p 00017000 08:01 3550740 /home/ryan/Downloads/LibXtract-master/src/.libs/libxtract.so.0.0.0 b774b000-b774d000 rw-p 00000000 00:00 0 b774d000-b774e000 r-xp 00000000 00:00 0 [vdso] b774e000-b776e000 r-xp 00000000 08:01 131203 /lib/i386-linux-gnu/ld-2.15.so b776e000-b776f000 r--p 0001f000 08:01 131203 /lib/i386-linux-gnu/ld-2.15.so b776f000-b7770000 rw-p 00020000 08:01 131203 /lib/i386-linux-gnu/ld-2.15.so bfb03000-bfb24000 rw-p 00000000 00:00 0 [stack] Aborted (core dumped) ryan@ryan-VGN-T2XP-S:~/Downloads/LibXtract-master/examples/simpletest$ ^C ryan@ryan-VGN-T2XP-S:~/Downloads/LibXtract-master/examples/simpletest$

Hi,

even though this seems pretty obvious I want to double check that xtract_f0 only accepts the spectrum to get the pitch, the results then should be the frequency in Hz, is this correct?

I'm testing the function with a software that generates tones and the results don't match, basically higher tones generate small numbers and lower tones generate big ones. Also the function seems to ignore input signals below 100Hz, the pcm signal is oscillating but the f0 doesn't move and I'm looking at the raw data. If help I can upload a short video to show the problem.

thanks.

hello, i keep getting a make error while building that says: simpletest.o: In function main': /home/mansi/SOFT/libxtract-0.6.6/examples/simpletest/simpletest.c:37: undefined reference toxtract_init_fft'come

please help to overcome this error

mansi

Hi Jamie, I'm not using MSVC, instead i'm trying to compile with MSYS2/MinGW64 in Windows. It's alway failing at ringbuf.c. It seems it has glibc dependencies and that seems to be a LINUX only C-library. What I am missing?

With my poor knowledge of make, I couldn't find how to build the docs. Tried make, make html, ... always says "no target". It would be nice to add a section about this in the README file.

I am trying to install LibXtract on my MacOSX, but it won't work. First of all, when I configure everything, I get the following message:

Summary:

fft: no (not using fftw3, no fft functions) simpletest example: yes PD external: yes

Although I have installed fftw 3.3.3. I tried by adding --with-ooura, but it won't change to fft: yes. Then when I hit make, the following message appears:

Undefined symbols for architecture x86_64: "_xtract_init_fft", referenced from: _main in simpletest.o ld: symbol(s) not found for architecture x86_64 collect2: ld returned 1 exit status make[3]: *** [simpletest] Error 1 make[2]: *** [all-recursive] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2

Are these problems linked? Does the make not work because it cannot find the fftw3 or is it another problem?

Thanks for helping!

I'm a bit confused about the documentation for xtract_irregularity_k and xtract_irregularity_k concerning the size of the data param - should it be the size of the FFT or the size of the magnitude spectrum bins? My hunch is the latter, these are the results I'm getting:

N = blocksize (512):

• xtract_irregularity_k: roughly between 28 - 29
• xtract_irregularity_j: always 0.012

N = blocksize / 2:

• xtract_irregularity_k: between 0.0 - 0.6
• xtract_irregularity_j: very large numbers (in the hundreds of thousands)

Any thoughts?

Thanks, Rich

This may be my mistake but I cannot figure out how to install the python bindings. I downloaded the latest version of the project through github. In the official documentation the only thing mentioned is that you need SWIG and python. In older documentations it is stated that you need to run ./configure with specific arguments in order to install the python bindings.

I have python 3.4.3 and SWIG is installed but I cannot find a configure file. When I run make the swig folder is not entered. If I manually enter the folder and run make I get the following results

../include/xtract/libxtract.h:300: Warning 314: 'def' is a python keyword, renaming to '_def' cc: error: Accelerate: No such file or directory cc: error: unrecognized command line option ‘-framework’ Makefile:21: recipe for target 'python' failed make: *** [python] Error 1

Also in the swig folder if I run the test.py I get the "Failed to load the library "xtract"" error.

Hi,

I'm trying to install LibXtract with the sudo make install command, but I am getting the following error message:

Making install in puredata install -d /usr/local/lib/pd/extra install -m 644 ../../examples/puredata/.libs/xtract.pd_darwin /usr/local/lib/pd/extra/xtract~.pd_darwin install: ../../examples/puredata/.libs/xtract.pd_darwin: No such file or directory make[2]: *** [install] Error 71 make[1]: *** [install-recursive] Error 1 make: *** [install-recursive] Error 1

I kind of think the "~" shouldn't be in the directory /usr/local/lib/pd/extra/xtract~.pd_darwin, but then again I'm really no expert...

Could you help me with this problem?

Thanks!

Hi all,

I need a dll version of the library yet have the following error message when I'm trying to build it on Windows 10:

C:\Users\XXX\Documents\Work\ExternalLibraries\Source\LibXtract>make install make[1]: Entering directory 'C:/Users/XXX/Documents/Work/ExternalLibraries/Source/LibXtract/src' The syntax of the command is incorrect. make[1]: *** [Makefile:92: .build/./delta.o] Error 1 make[1]: Leaving directory 'C:/Users/XXX/Documents/Work/ExternalLibraries/Source/LibXtract/src' make: *** [Makefile:31: install] Error 2

Both the main and develop branches give the same error. When I build it on MACOS, everything is OK.

Could you please help me with the issue.

Thanks in advance...

https://github.com/jamiebullock/LibXtract/blob/41273dd7a56ebe7f1a232cfa0b870ebb67eefd7d/src/vector.c#L323-L373

I was trying to implement a higher level API in Julia and I've found these two lines that seem wrong to me. Shouldn't it compute the euclidean distance between imag and real? The following two lines seems copied from the previous clause:

https://github.com/jamiebullock/LibXtract/blob/41273dd7a56ebe7f1a232cfa0b870ebb67eefd7d/src/vector.c#L367-L368

If you confirm, I can do a pull request

I got this error:

$ make install
make[1]: Entrando no diretório '/home/mojo/Downloads/LibXtract-master/src'

c-ringbuf/ringbuf.c: In function ‘ringbuf_read’:
c-ringbuf/ringbuf.c:242:17: warning: implicit declaration of function ‘read’ [-Wimplicit-function-declaration]
  242 |     ssize_t n = read(fd, rb->head, count);
      |                 ^~~~
c-ringbuf/ringbuf.c: In function ‘ringbuf_write’:
c-ringbuf/ringbuf.c:306:17: warning: implicit declaration of function ‘write’ [-Wimplicit-function-declaration]
  306 |     ssize_t n = write(fd, rb->tail, count);
      |                 ^~~~~
make[1]: Saindo do diretório '/home/mojo/Downloads/LibXtract-master/src'

make[1]: Entrando no diretório '/home/mojo/Downloads/LibXtract-master/examples'

make[2]: Entrando no diretório '/home/mojo/Downloads/LibXtract-master/examples/simpletest'

WaveFile.cpp:75:8: warning: constante de caractere multi-caractere [-Wmultichar]
   75 |   case 'FFIR':
      |        ^~~~~~
WaveFile.cpp:81:31: warning: constante de caractere multi-caractere [-Wmultichar]
   81 |     if (header.riff.format != 'EVAW')
      |                               ^~~~~~
WaveFile.cpp:89:8: warning: constante de caractere multi-caractere [-Wmultichar]
   89 |   case ' tmf':
      |        ^~~~~~
WaveFile.cpp:124:8: warning: constante de caractere multi-caractere [-Wmultichar]
  124 |   case 'atad':
      |        ^~~~~~
WaveFile.cpp:143:29: warning: constante de caractere multi-caractere [-Wmultichar]
  143 |  if (header.riff.chunkID != 'FFIR')
      |                             ^~~~~~
WaveFile.cpp:148:28: warning: constante de caractere multi-caractere [-Wmultichar]
  148 |  if (header.fmt.chunkID != ' tmf')
      |                            ^~~~~~
/usr/bin/ld: ../../src/libxtract.a(scalar.o):(.bss+0x0): múltiplas definições de "wavelet_f0_state"; ../../src/libxtract.a(init.o):(.bss+0x0): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(scalar.o):(.bss+0x10): múltiplas definições de "ooura_data_autocorrelation_fft"; ../../src/libxtract.a(init.o):(.bss+0x10): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(scalar.o):(.bss+0x30): múltiplas definições de "ooura_data_spectrum"; ../../src/libxtract.a(init.o):(.bss+0x30): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(scalar.o):(.bss+0x50): múltiplas definições de "ooura_data_mfcc"; ../../src/libxtract.a(init.o):(.bss+0x50): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(scalar.o):(.bss+0x70): múltiplas definições de "ooura_data_dct"; ../../src/libxtract.a(init.o):(.bss+0x70): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(vector.o):(.bss+0x30): múltiplas definições de "ooura_data_spectrum"; ../../src/libxtract.a(init.o):(.bss+0x30): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(vector.o):(.bss+0x10): múltiplas definições de "ooura_data_autocorrelation_fft"; ../../src/libxtract.a(init.o):(.bss+0x10): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(vector.o):(.bss+0x0): múltiplas definições de "wavelet_f0_state"; ../../src/libxtract.a(init.o):(.bss+0x0): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(vector.o):(.bss+0x50): múltiplas definições de "ooura_data_mfcc"; ../../src/libxtract.a(init.o):(.bss+0x50): definido primeiro aqui
/usr/bin/ld: ../../src/libxtract.a(vector.o):(.bss+0x70): múltiplas definições de "ooura_data_dct"; ../../src/libxtract.a(init.o):(.bss+0x70): definido primeiro aqui
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:85: simpletest] Erro 1
make[2]: Saindo do diretório '/home/mojo/Downloads/LibXtract-master/examples/simpletest'

make[1]: *** [Makefile:10: install] Erro 2
make[1]: Saindo do diretório '/home/mojo/Downloads/LibXtract-master/examples'

make: *** [Makefile:32: install] Erro 2

Hi

I just successfully executed the command make swig and I wanted to give my feedback on how I did it.

1. First things first, you should be able to execute make install in the root of the project. So before anything else, do this. This should install LibXtract to /usr/local. If that didn't work execute following command: make install PREFIX=/usr/local

2. Next up, let's install swig: In Ubuntu (or WSL for that matter). This is done by these commands:

git clone https://github.com/swig/swig.git

cd swig
sudo apt-get install automake
./autogen.sh
./configure
sudo apt-get install bison flex
make
sudo make install

You can choose where you want to clone the project to. I just did it in the folder where I want to use LibXtract.

3. when you'd execute 'make swig' in the root folder of the project you would probably get following error:

xtract_wrap.c:154:11: fatal error: Python.h: No such file or directory
 # include <Python.h>
           ^~~~~~~~~~
compilation terminated.

This is because the devtools of Python aren't installed or your OS cannot find them. Before installing the devtools, check your Python version with python --version. You should install the right devtools for your version.

sudo apt-get install python<version here>-devtools

An overview of all the commands in different OS's: https://icetutor.com/question/fatal-error-python-h-no-such-file-or-directory/

I still had a problem. Even though I installed the devtools, I couldn't import Python.h . I use anaconda and that was the problem.

Open swig/Makefile in an editor of your choice and change the value of the -I flag to the location of your devtools. In anaconda you'd get something like /home/youruser/anaconda3/include/python3.6m.

So, on line 22 and 23 change these values:

	@swig -I/path/to/devtools -python $(NAME).i
	@$(CC) $(CFLAGS) $(NAME)_wrap.c -o $(NAME)_wrap.o -I$(INCLUDEPY) -I/path/to/devtools

Also, the provided test file is outdated. sei-nicolas created an alternative one in issue #93 (find it here)

I hope this helps! cheers

It seems like all downloads/releases are gone. The readme points to https://github.com/jamiebullock/LibXtract/downloads but that says there aren't any downloads. Since there are also no tags set there are no releases to download anywhere :) Was this a deliberate change or an accident?