slowdown

I'm wondering whether it's possible to slow down a sound in xcode. I mean I'll add some .mp3 file in my supporting files in xcode and I'll create app which will be able to speed it up or slow down. For example with slider. Is it even possible? If yes, could anyone help me with some idea? Thanks propstm AVAudioPlayer has a rate property which should be able to help you accomplish your goal. http://developer.apple.com/library/IOS/#documentation/AVFoundation/Reference/AVAudioPlayerClassReference/Reference/Reference.html The audio player’s playback rate. @property float rate Discussion This

I was working on migration scripts which selects data from one MySQL database and import through doctrine into another MySQL database. The problem was that after every chunk of created entities, my scripts slowed down. first 100 articles takes about 5 seconds to import, next 100 articles takes 7 seconds, next 10 seconds and so on. It is really big problem, because I need to import about 1.500.000 articles. I found out that php >=5.3 has garbage collector cleaner. So, when I import chunk of articles I call gc_collect_cycles(); to clear memory out of all entities which script will needs no more.

I currently have an asynctask which downloads a mp3 from a server. When the user starts to download it, a status bar notification is created. This displays the progress of the download in real time. My only concern is that the phone slows down almost too much. Is there any way to delay the progress displayed or a way to make my code faster? Thanks. Code below: public class DownloadFile extends AsyncTask<String, String, String> { CharSequence contentText; Context context; CharSequence contentTitle; PendingIntent contentIntent; int HELLO_ID = 1; long time; int icon; CharSequence tickerText; File

I am doing a sort_by_key with key-value int arrays of size 80 million. The device is a GTX 560 Ti with 2GB VRAM. When the available (free) memory before the sort_by_key is 1200MB , it finishes sorting in 200ms . But, when the available memory drops to 600MB , the sort_by_key for the same key-value arrays takes 1.5-3s ! I ran the program under Compute Visual Profiler . I found that the GPU timestamp jumps by 1.5-3s between the last kernel before sort_by_key and the first kernel call inside sort_by_key (which is a RakingReduction ). I suspect there is a memory allocation being done inside sort

EDIT: I decided to rewrite this to include a working example of my problem. Although this is pretty long, I hope that it proves to be useful for many in the future. import sys from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas from matplotlib.figure import Figure from PyQt4.QtGui import * from PyQt4.QtCore import * class MainWindow(QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.setGeometry(100, 100, 640, 480) showButton = QPushButton('Show') toolbarShowButton = self.addToolBar('Show button toolbar') toolbarShowButton.addWidget(showButton