2014/10/16 上午 08:13:51

android Programming Glossary: frequency

http://stackoverflow.com/questions/1638864/filtering-accelerometer-data-noise

filter for my sample data so that I could eliminate low frequency components and focus on the high frequency components. I have.. eliminate low frequency components and focus on the high frequency components. I have read that Kalman filter might be the best..

Android: Storing username and password?

http://stackoverflow.com/questions/1925486/android-storing-username-and-password

dev guide is In general we recommend minimizing the frequency of asking for user credentials to make phishing attacks more..

How to draw charts in Android? [duplicate]

http://stackoverflow.com/questions/2271248/how-to-draw-charts-in-android

GraphViewData 2 1.5d new GraphViewData 2.5 3.0d another frequency new GraphViewData 3 2.5d new GraphViewData 4 1.0d new GraphViewData..

Playing an arbitrary tone with Android

http://stackoverflow.com/questions/2413426/playing-an-arbitrary-tone-with-android

Is there any way to make Android emit a sound of arbitrary frequency meaning I don't want to have pre recorded sound files I've looked..

What is the simplest and most robust way to get the user's current location in Android?

http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a

be available. Don't particularly care about accuracy or frequency of update. Just grabbing one location is sufficient as long..

Android AudioRecord class - process live mic audio quickly, set up callback function

http://stackoverflow.com/questions/4525206/android-audiorecord-class-process-live-mic-audio-quickly-set-up-callback-func

automatically made to your event handler at the specified frequency. I think the structure in pseudo code would be something like..

Capturing Sound for Analysis and Visualizing Frequencies in Android

http://stackoverflow.com/questions/5511250/capturing-sound-for-analysis-and-visualizing-frequencies-in-android

extends Activity implements OnClickListener int frequency 8000 int channelConfiguration AudioFormat.CHANNEL_CONFIGURATION_MONO.. params try int bufferSize AudioRecord.getMinBufferSize frequency channelConfiguration audioEncoding AudioRecord audioRecord.. new AudioRecord MediaRecorder.AudioSource.DEFAULT frequency channelConfiguration audioEncoding bufferSize short buffer..

Android audio FFT to retrieve specific frequency magnitude using audiorecord

http://stackoverflow.com/questions/5774104/android-audio-fft-to-retrieve-specific-frequency-magnitude-using-audiorecord

audio FFT to retrieve specific frequency magnitude using audiorecord I am currently trying to implement.. using Android to detect when a number of specific audio frequency ranges are played through the phone's microphone. I have set.. over the place and aren't representative of a consistent frequency even in silence. Is anyone aware of a way to perform this task..

Filtering accelerometer data noise

http://stackoverflow.com/questions/1638864/filtering-accelerometer-data-noise

data in Android I would like to create a high pass filter for my sample data so that I could eliminate low frequency components and focus on the high frequency components. I have read that Kalman filter might be the best candidate for this.. create a high pass filter for my sample data so that I could eliminate low frequency components and focus on the high frequency components. I have read that Kalman filter might be the best candidate for this but how do I integrate or use this method..

Android: Storing username and password?

http://stackoverflow.com/questions/1925486/android-storing-username-and-password

sense from a usability perspective. The advice from the Android dev guide is In general we recommend minimizing the frequency of asking for user credentials to make phishing attacks more conspicuous and less likely to be successful. Instead use an..

How to draw charts in Android? [duplicate]

http://stackoverflow.com/questions/2271248/how-to-draw-charts-in-android

this context new GraphViewData new GraphViewData 1 2.0d new GraphViewData 2 1.5d new GraphViewData 2.5 3.0d another frequency new GraphViewData 3 2.5d new GraphViewData 4 1.0d new GraphViewData 5 3.0d data GraphViewDemo heading null dynamic labels..

Playing an arbitrary tone with Android

http://stackoverflow.com/questions/2413426/playing-an-arbitrary-tone-with-android

an arbitrary tone with Android Is there any way to make Android emit a sound of arbitrary frequency meaning I don't want to have pre recorded sound files I've looked around and ToneGenerator was the only thing I was able..

What is the simplest and most robust way to get the user's current location in Android?

http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a

location so that by the time I need it in Activity X it will be available. Don't particularly care about accuracy or frequency of update. Just grabbing one location is sufficient as long as it's not way off. Maybe if I want to be fancy I'll update..

Android AudioRecord class - process live mic audio quickly, set up callback function

http://stackoverflow.com/questions/4525206/android-audiorecord-class-process-live-mic-audio-quickly-set-up-callback-func

recording and the name of your event handler and a call is automatically made to your event handler at the specified frequency. I think the structure in pseudo code would be something like set target of period update message myListener set period..

Capturing Sound for Analysis and Visualizing Frequencies in Android

http://stackoverflow.com/questions/5511250/capturing-sound-for-analysis-and-visualizing-frequencies-in-android

import ca.uol.aig.fftpack.RealDoubleFFT public class AudioProcessing extends Activity implements OnClickListener int frequency 8000 int channelConfiguration AudioFormat.CHANNEL_CONFIGURATION_MONO int audioEncoding AudioFormat.ENCODING_PCM_16BIT private.. double Void @Override protected Void doInBackground Void... params try int bufferSize AudioRecord.getMinBufferSize frequency channelConfiguration audioEncoding AudioRecord audioRecord new AudioRecord MediaRecorder.AudioSource.DEFAULT frequency.. channelConfiguration audioEncoding AudioRecord audioRecord new AudioRecord MediaRecorder.AudioSource.DEFAULT frequency channelConfiguration audioEncoding bufferSize short buffer new short blockSize double toTransform new double blockSize..

Android audio FFT to retrieve specific frequency magnitude using audiorecord

http://stackoverflow.com/questions/5774104/android-audio-fft-to-retrieve-specific-frequency-magnitude-using-audiorecord

audio FFT to retrieve specific frequency magnitude using audiorecord I am currently trying to implement some code using Android to detect when a number of specific.. audiorecord I am currently trying to implement some code using Android to detect when a number of specific audio frequency ranges are played through the phone's microphone. I have set up the class using the AudioRecord class int channel_config.. this class is meant to work but the values returned jump all over the place and aren't representative of a consistent frequency even in silence. Is anyone aware of a way to perform this task or am I overcomplicating matters to try and grab only a small..