duration

问题 my Problem concerns AudioUnits. In order to design a voicechanging App for iPhone (with Objective-C xCode) i use RemoteIO audioUnit sample from this website: http://atastypixel.com/blog/using-remoteio-audio-unit/ The audioUnit buffers are set to a length of 256 samples. For my project i need alot more (about 22050). The quoted page says that the length of the audioUnit buffers can be adjusted like this: float aBufferLength = 0.005; // In seconds AudioSessionSetProperty(kAudioSessionProperty

问题 I have a html5 <audio> tag in page, but how can I know its duration time? <audio controls=""> <source src="p4.2.mp3"> </audio> 回答1: 2018 solution: You will get undefined or NaN (not a number) when the audio metadata isn't loaded yet. Therefore some people suggested to use onloadedmetadata to make sure the metadata of the audio file is fetched first. Also, what most people didn't mention is that you have to target the first index of the audio DOM element with [0] like this: -- Vanilla

问题 String realTimeStr = "5.2345"; Double realTimeDbl = Double.parseDouble(realTimeStr); long realTimeLng = (long) (realTimeDbl*1000); SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSSS", Locale.getDefault()); log("Duration: " + sdf.format(new Date(realTimeLng - TimeZone.getDefault().getRawOffset()))); Current output: Duration: 00:00:05.0234 Desired output: Duration: 00:00:05.2345 I also tried another method, still no good: String realTimeStr = "1.4345"; Double realTimeDbl = Double

问题 String realTimeStr = "5.2345"; Double realTimeDbl = Double.parseDouble(realTimeStr); long realTimeLng = (long) (realTimeDbl*1000); SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSSS", Locale.getDefault()); log("Duration: " + sdf.format(new Date(realTimeLng - TimeZone.getDefault().getRawOffset()))); Current output: Duration: 00:00:05.0234 Desired output: Duration: 00:00:05.2345 I also tried another method, still no good: String realTimeStr = "1.4345"; Double realTimeDbl = Double

问题 First of all I want to mention two things, One: My code isn't perfect (esspechially the eval parts) - but I wanted to try something for my self, and see if I could duplicate the jQuery Animation function, so please forgive my "bad" practices, and please don't suggest that I'll use jQuery, I wanted to experiment. Two: This code isn't done yet, and I just wanted to figure out what makes it work badly. So the animation runs for about 12 seconds while the duration parameter I entered was 15

问题 Preface: I am new to writing my own jQuery code and have had help writing the animateContinously() function below. I'm using backstretch.js to have a full browser viewport/background slideshow and jQuery animate() function to change the color (with the help of the jquery-color.js plugin) of the text that shows on top of the backstretch controlled images, depending on which backstretch image is showing. It works, but the backstretch() duration and animate() delay are out of sync if I set them

问题 This is copied straight out of my console: >>> import isodate >>> import datetime First statements are as expected. 1 month duration not longer than 10 years duration. >>> duration = isodate.parse_duration("P1M") >>> duration > isodate.duration.Duration(0, 0, 0, years=10, months=0) False But then I get 1 month duration is longer than 10 years duration all of a sudden. >>> duration = isodate.parse_duration("P1M") >>> isinstance(duration, isodate.Duration) True >>> duration > isodate.duration

问题 I have the following vector A: A = [34 35 36 5 6 7 78 79 7 9 10 80 81 82 84 85 86 102 3 4 6 103 104 105 106 8 11 107 201 12 202 203 204]; For n = 2 , I counted the elements larger or equal to 15 within A : D = cellfun(@numel, regexp(char((A>=15)+'0'), [repmat('0',1,n) '+'], 'split')); The above expression gives the following output as duration values: D = [3 2 7 4 6] = [A(1:3) **stop** A(7:8) **stop** A(12:18) **stop** A(22:25) **stop** A(28:33)]; The above algorithm computes the duration

问题 Hi again with a boost question: I need to calculate the time spent in my function in my boost thread: here is the code: boost::posix_time::microseconds tes( 12 ); int i = 0; while( true ) { boost::posix_time::ptime start = boost::posix_time::microsec_clock::local_time( ); myFunction( ); boost::this_thread::sleep( tes ); boost::posix_time::ptime end = boost::posix_time::microsec_clock::local_time( ); boost::posix_time::time_duration elapsed = end - start; } so I tried many times but the

问题 I am using Tweepy to capture streaming tweets based off of the hashtag #WorldCup, as seen by the code below. It works as expected. class StdOutListener(StreamListener): ''' Handles data received from the stream. ''' def on_status(self, status): # Prints the text of the tweet print('Tweet text: ' + status.text) # There are many options in the status object, # hashtags can be very easily accessed. for hashtag in status.entries['hashtags']: print(hashtag['text']) return true def on_error(self,