I want to give audio-input to a FFT code (KissFFT) written in C, on a real-time basis. While I can give a simple test signal (like sine wave) by writing the sine function as input, I am not sure how I should convert an audio-signal (e.g.: song) into a form that can be taken as input by the KissFFT C code.
View 3 RepliesSo I have a project in which I am processing audio signals in real-time. I want to create a class to do this using the ASIO driver. I don't want to use a cross platform library nor do I want to use windows API as it is very slow.
View 2 Replies View RelatedI am trying to get user's voice as an audio input to a c++ program and store it in a text file (.txt)
I have been searching over the web to find some kind of library or something like OpenCV(video library) for while now but nothing seems to be there.
After entering the values of the matrix, it is giving me segmentation error. also "if possible", correct it
#include<iostream>
using namespace std;
int main()
{
[Code]......
I have been looking and i'm stuck on this. I wrote this program to find quarks and their charge and mass but i need it to give me 5 different ones. so i made an array but when i run it it gives me this
"Unhandled exception at 0x001631c6 in DiasQuarkP1V0.exe: 0xC0000005: Access violation reading location 0xd5bf0c38." and it shows the xstring library.
this is my main, is their anything wrong with my code?
#include "StdAfx.h"
#include <stdio.h>
#include <string>
using namespace std;
int main() {
Quark solution[5]={};
[Code] .....
The brief is to write a program that implements a musically-interesting or musically-useful audio effect/process in C without external libraries other than those prescribed (PortMedia/PortMIDI/PortSMF/PortAudio, Libsndfile).
View 6 Replies View RelatedI have programmed a game where you guess a number (1-6) and if the number is equal to the random number then give the player score + 10. But if I have selected for example 4 players then if the game will give player 1 a score it gives player 2 a score instead? What can be causing this error?
Code:
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int cube;
int number[4];
[Code] .....
The program should ask the user how many students were surveyed and dynamically allocate an array of that size. The program should then allow the user to enter the number of movies each student has seen.
#include <iostream>
#include <string>
using namespace std;
[Code].....
The problem I'm having is that where I declare movies = [numStudents]; the semicolon after the numStudents array is giving me this error - "error: expected a '{' introducing a lambda body".
I'm creating a bank system. So I know to make a deposit to the balance, which add ups what is the balance to i have add.
When i run the deposit function, its work well in some ways. If balance(text file) has the value 10, add i addSum 20, the balance will become 30, same as the text file will become 30. so its work well to add positive number.
double deposit(double balance){
double addSum = 0;
system("CLS");
cout<< "Welcome to deposit."<<endl;
cout<<"Enter a sum you wish to add to your account:";
[Code] .......
When I withdraw from 30 which is the balance, then i takeSum, for example i take away 30. The balance will become 30 - 30 = 0
When i make another withdraw from example -150, it will be -150.
Which shows correct.
But when i make a deposit from -150 and i addSum 130, the balance shows -500, and it should had been -20.
double withdraw(double balance) {
double takeSum = 0;
system("CLS");
cout<< "Welcome to withdraw."<<endl;
cout<<"Enter a sum you wish to take away from your account:";
cout << balance << '
[Code] .....
What is causing this problem, also when function deposit and withdraw close, it goes to readBalance function, should go to menu.
double readBalance(double balance) {
int option;
system("CLS");
cout<<"Welcome to balance."<<endl;
cout<<"Your balance is:"<<endl;
[Code] .....
Not a major issue since I got this to work but for some reason both my random numbers are the same and not sure why ...
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
public class ComputerAssistedInstructions {
private static Random rand1 = new Random();
private static Random rand2 = new Random();
[Code] .....
Write a C++ program to implement the following description:
1. Define a global structure and name it GStruct with the following members:
a. X as integer
b. Y as integer.
2. Define a local structure inside the main and name it LStruct with the following members:
a. X as integer
b. Y[3] as GStruct
3. Inside the main declare two variables V1 and V2 of type LStruct.
4. Give values to all of their members by using input statement (cin).
5. If V1 equal V2 print "They are equal" else print "Not Equal".
#include <iostream>
using namespace std;
struct GStruct {
int x;
int y;
};
int main() {
[Code] .....
I want to develop a soft like Microphone,Other words for that I speak some words for mic, play from earphone immediately!
.h file
#define InBlocks 4 //input buffer numbers
#define OutBlocks 4 //output buffer numbers
#define INP_BUFFER_SIZE 160
pWaveHdr1=reinterpret_cast<PWAVEHDR>(malloc(sizeof(WAVEHDR)));
pWaveHdr2=reinterpret_cast<PWAVEHDR>(malloc(sizeof(WAVEHDR)));
[code].....
Im using the remquo function in the cmath library as follows:
int quotient;
double a = remquo (10.3, 4.5, "ient);
This gives the correct remainder (a = 1.3) and quotient (quotient = 2).
Infact about 50% of the answers are right when I play around, however, trying something like:
int quotient;
double a = remquo (2.25, 1.5, "ient);
yields an incorrect quotient of 2 and remainder of 0.
I do think this has something to do with float arithmetic. I recall tinkering with the float number 0.500 and that the CPU actually saves it as 0.50000000000000231. However if my suspicion of float arithmetic as the suspect is correct, I do not understand why a tenth decimal would make such a drastic difference as changing the quotient result.
I'm using Code:Blocks 12.11 on windows 7, with the built-in MinGW compiler. When I try and compile a program that has an error in it (misnamed variable, missing include, extra semi-colon somewhere, anything) instead of saying something about what went wrong it just has this:
Process terminated with status 1 (0 minutes, 0 seconds)
0 errors, 0 warnings (0 minutes, 0 seconds)
Which is not particularly useful for debugging.
when I want to use the same socket connected to the host to send() and recv() for the second time, recv() will return 0 without anything in buffer. Basically I am doing:
1. connect to the website
2. send packets
3. receive packets
4. send packets again (I think this one is working since it's not giving me SOCKET_ERROR)
5. receive packets again (this one is returning 0 so as "connection closed")
source code: [URL] ....
as you can see, I have sock2, which when I use for second send/recv it's working fine, however I will do more communication, and having sockets for all of that and connecting them.
i have a audio file that i want to play via C+.
View 4 Replies View RelatedI'd like to be able to output sound over skype as if it were coming from my headset, how would I go about this?
View 1 Replies View RelatedI have a RGB STRIP connected to Arduino, when im communicating via Serial. All works great! So next i wanted to make some audio visualisation.. So i found some samples etc.. and then i created the Audio Visualisation via C# using BASS.NET, when R has been BASSes, G medium frequency and B high frequency. But isnt looking good, so i started thinking, what 3 variables in song has can use, but this is bad idea.. I got idea to change to random color when its get "beat" or BASS hit some value. I tryied 4 hours of doing it, searching, programming... But i cant do it...
So, my question is how to detect the beat or just anything event for Audio Visualisation. Best output form WASAPI. Only what i can do is get FFT and Audio Spectrum from WASAPI by BASS.NET, but thats all. My audio skills is so low for this.
I tried playing audio using irrKlang in openGL.But i ended up with some problems.
I have attach my source file and also my output file here.
I am trying to retrieve information from a website [URL] .... and have written a C code as follows:
Code:
#include <stdlib.h>#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
int main(int argc, char* argv[]) {
/* Exit status to return */
int exitStatus = 0;
[Code] .....
The output of this program should be:
From To
4504111 B0LPF3
4504111 P62993
The first print option [printf("%s", url)] gives the url output as [URL] .... which on being manually pasted in any web-browser gives the correct output but the program fails to give the output.
I'm making a game with the following class structure:
GameControl - The class that actually runs the game, with a while(!closed) // run the game loop.
State - A class that handles the state of the game, for example if the game is rendering the scene it would be in one state, and if it is rendering the menu, it would be in another.
ComponentManager - A class that manages all of the components of what is being done, for instance, the Scene class would contain a bunch of components handling the drawing of each tree, physics, the camera, etc. The manager will put them all together.
Component - A component of whatever is being done. A tree (and its rendering code) would be an example of a component of the scene. The camera would be another. The component does not necessarily have to be drawn, it could be handling something like physics (and would throw physics events to other components that need to move in a certain way).
The GameControl class has its loop, which would call the update function on the current State (there are classes that inherit State and override the update function of State).
In the update function of the base class "State", it would take all of the active ComponentManagers and update them. There are classes that inherit the base class ComponentManager and override its update function.
Each ComponentManager would update each of the Components that it owns.
This is the organizational structure that I came up with to make the game scalable and changeable . If, for instance, I wanted to add multiplayer at some point, I would add a class that inherits the State that controls the gameplay called "MultiplayerGameState". This would just add a new ComponentManager that inherits the ComponentManager that controls the player and all of the living things that are moving around. Then, the MultiplayerGameState class would recieve the multiplayer messages coming in and add other player Components for the other players.
My code is giving me various errors like "Forward definition of class State" and "Invalid use of incomplete type State". Unless I made some stupid error that I didn't catch, these are being caused by me including the classes in ways that some of the classes do not see the full definitions of the classes they need to see (because of the preprocessor directives preventing classes from being included multiple times.
Code: (Not implemented exactly as shown above, but I think the main difference is that the main class is not in GameControl, it's in OgreFramework.cpp)
The base classes: [URL] ...
States: [URL] ...
ComponentManagers: [URL] ...
Components: [URL] ...
The project: [URL] ...
My question is: is there a better way to implement my organizational system so that these errors don't occur?
I've implemented the merge sort algorithm and used the 'merge' part for counting the number of split-inversions in an array as part of an assignment for an online course. How ever, the out put array is not a sorted version of the input array and as a result the number of split inversions obtained is wrong. I think that there is some thing wrong in the way I am indexing arrays.
I've used ' cout ' to print the values of indexes to see exactly what values are being passed in during the recursions.
Code:
#include <iostream>
using namespace std;
int length=0,mid=0,inv=0;
void mergesort(int arr[], int first, int last) {
cout << "first: " << first << " " << "last: " << last;
cout << endl;
[code].....
I'm trying to make a windows-focused , I will make it portable after , audio function that plays sounds according to my midi file. I know there is playsound, but it's not what I desire. I'm curious if Beep plays through the sound card or is similar to printf("a") ? I'm just looking for a low level solution.
View 1 Replies View Relatedhow to open an audio file using c. write a code to open an audio file.
View 2 Replies View RelatedI'm interested in learning how to write the software for audio synthesizers. a friend of mine started on the hardware side for them and, as i have no experience with this type of code.
View 7 Replies View Relatedwork for a radio station as their webmaster, and we have been looking into online streaming options for the last few months for our website. Pretty much everyone charges a monthly fee for this type of service and I feel like it is something I am capable of doing myself.
At the station we have a computer dedicated to operating the music/talk. On this computer there is a program that ques all the music, ads, ect.. This would be my audio source: Either the program playing all the music, or the computer itself.
The problem I have been pondering all night is how would I access this input source? The only audio input I am familiar with accessing is .mp3 or .wav files. How can I code my program to access this audio the program is producing and stream it to people on the web?