size

问题 I am trying to do a quick spectral analysis on the streaming audio data to capture vowels (something like JLip-sync). Using PyAudio to capture the voice data in small chunks (1024) for short durations (0.0625 sec.). Using numpy.fft for the analysis, and to get rid of leakage using numpy.hanning window. I am using 4096*4 as the sampling rate (not 44100 or 22050, and open to discussion as well; 4096*4 being nearest to 22050). Considering the frequencies I am interested in (ranging from 300 Hz

问题 I'm trying to change the default java icon that appears in taskbar everytime I run my .jar program. I managed to change it with frame.setIconImage(img); but this makes icon way too small, I want it to be as big as other programs icons and have a high quality. Any way I can do that? Thanks. 回答1: As you only supplied a single icon, Windows will then scale that icon to whatever size it needs displaying it in the taskbar (could be 16x16, 32x32 or other sizes, depending on the desktop them and

问题 I have all of my images in the drawable-hdpi folder. And I finished all of my layouts for all screen sizes. But i forgot to put the images in the drawable-mdpi folder and drawable-ldpi folder. If a phone with an mdpi screen density were to download my application would it just use the images in the drawable-hdpi folder? Or would an error occur because there are no images in the mdpi folder? The only images in the mdpi and ldpi folder is the icon. 回答1: The phone is gonna take the images from

问题 Hey I need to get the width of the screen in my application. The application will run on 2.1 and upwards. I have set it up like the one below. The method is deprecated and i should proabably use getSize or a other way. But the question is: Will this work on android versions like 3.0+ and 4.0+, or will it make the app crash. I have used a deprecated method in a thread before and it made the app crash on ice cream devices. Will the method below work ? Display display = getWindowManager()

问题 I tried: #include <vector> int main () { std::vector<int> v; int size = v.size; } but got the error: cannot convert 'std::vector<int>::size' from type 'std::vector<int>::size_type (std::vector<int>::)() const noexcept' {aka 'long unsigned int (std::vector<int>::)() const noexcept'} to type 'int' Casting the expression to int like this: #include <vector> int main () { std::vector<int> v; int size = (int)v.size; } also yields an error: error: invalid use of member function 'std::vector<_Tp,

问题 I want to get the list of all files with their paths & sizes for my mac system. From that, I want to filter only those files which have file size above 100 MB. I got the size of my system using the below code. NSError *error; NSFileManager *fileManager = [NSFileManager defaultManager]; NSDictionary *fileAttributes = [fileManager attributesOfFileSystemForPath:@"/" error:&error]; Now I want to get the list of files with their paths and sizes. I searched a lot but those couldn't meet to my

问题 The following code #include <vector> #include <iostream> using namespace std; int main() { vector<int> value; cout << value.size() << endl; // output 0 cout << value.size() - 1 << endl; // output 18446744073709551615 } Why the second output is not -1? What happens at the second cout? 回答1: vector::size() is of type size_t which is an unsigned type, and unsigned integers can't represent negative numbers. 回答2: Unsigned integer types in C++ do “wrap around arithmetic” a.k.a. clock arithmetic a.k

问题 My current problem is that I have a JFrame with a 2x2 GridLayout. And inside one of the squares, I have a JPanel that is to display a grid. I am having a field day with the java swing library... take a look Image Java is automatically expanding each JLabel to fit the screen. I want it to just be those blue squares (water) and the black border and not that gray space. Is there a way I can just set the size of that JPanel permanently so that I don't have to go through changing the size of the

问题 I want to dimension RAM dependent on the innodb_buffer_pool_size. But all what I find is the dependence of the innodb_buffer_pool_size on RAM. Can you tell me on which parameters on the innodb_buffer_pool_size depends? Number of queries? Number of transactions? I want to find out the formula which calculates the RAM dependent on innodb_buffer_pool_size. Can you help me? Thank you very much for your advice! 回答1: Sizing innodb_buffer_pool_size : If all the queries/transactions are touching tiny

问题 Is it possible to change strings (content and size) in Lua bytecode so that it will still be correct? It's about translating strings in Lua bytecode. Of course, not every language has the same size for each word... 回答1: Yes, it is if you know what you're doing. Strings are prefixed by their size stored as an int. The size and endianness of that int is platform-dependent. But why do you have to edit bytecode? Have you lost the sources? 回答2: After some diving throught Lua source-code I found