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2014/10/16 ¤W¤È 08:18:22
android Programming Glossary: magnitudeHow can I get the magnetic field vector, independent of the device rotation? http://stackoverflow.com/questions/11772923/how-can-i-get-the-magnetic-field-vector-independent-of-the-device-rotation X axis to be fully on the Y axis 0 m 0 I R geomagnetic m magnitude of geomagnetic field This vector should be constant for each..
JDBC vs Web Service for Android http://stackoverflow.com/questions/15853367/jdbc-vs-web-service-for-android loss rates and latencies that vary over many orders of magnitude in short spans of time. TCP really isn't great in this environment..
Set TextView text from html-formatted string resource in XML http://stackoverflow.com/questions/3235131/set-textview-text-from-html-formatted-string-resource-in-xml
http://stackoverflow.com/questions/3928202/get-microphone-volume would have to experiment with taking either the maximum magnitude byte from the returned byte array or perhaps the RMS average..
Getting decibel from an android microphone http://stackoverflow.com/questions/4271989/getting-decibel-from-an-android-microphone then on its basically all about the calibration and log magnitude. Essentially you will multiply or convolve by a frequency dependent.. a frequency dependent calibration and then take 10 the log magnitude over all or some of the frequency range. Then you'd have to.. a frequency flatness correction. You can then take the log magnitude of the result per unit time to determine wideband spl. Or you..
Android 2.3 Visualizer - Trouble understanding getFft() http://stackoverflow.com/questions/4720512/android-2-3-visualizer-trouble-understanding-getfft of currently playing audio content. The capture is a 8 bit magnitude FFT. Note that the size of the FFT is half of the specified.. it simple and I grabbed the first 31 bins. Here are the magnitudes of the first 31 bins 123 2 23 3 6 16 15 10 8 12 9 9 17 6 18..
Compare voice wav in android or voice tag ( voice commands ) API http://stackoverflow.com/questions/4935691/compare-voice-wav-in-android-or-voice-tag-voice-commands-api value in your transformed array represents the relative magnitude intensity of a particular frequency band . If the same person..
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.. your input complex array. Once you get the results use the magnitudes of the complex numbers in the results. Most of the magnitudes.. of the complex numbers in the results. Most of the magnitudes should be close to zero except the frequencies that have actual..
How to get frequency from fft result? http://stackoverflow.com/questions/7674877/how-to-get-frequency-from-fft-result are some massive spikes both positive and negative in magnitude around 110 232 and small spikes continuing in that fashion until.. i the imaginary components are at index 2 i 1 . To get the magnitude of the spectrum at index i you want re fft 2 i im fft 2 i 1.. the spectrum at index i you want re fft 2 i im fft 2 i 1 magnitude i sqrt re re im im Then you can plot magnitude i for i 0 to..
How can I get the magnetic field vector, independent of the device rotation? http://stackoverflow.com/questions/11772923/how-can-i-get-the-magnetic-field-vector-independent-of-the-device-rotation it with inclination I the vector would be rotated around the X axis to be fully on the Y axis 0 m 0 I R geomagnetic m magnitude of geomagnetic field This vector should be constant for each position on the earth. However results on your mobile phone..
JDBC vs Web Service for Android http://stackoverflow.com/questions/15853367/jdbc-vs-web-service-for-android a network transport layer that has high and variable packet loss rates and latencies that vary over many orders of magnitude in short spans of time. TCP really isn't great in this environment and particularly struggles with long lived connections...
Set TextView text from html-formatted string resource in XML http://stackoverflow.com/questions/3235131/set-textview-text-from-html-formatted-string-resource-in-xml
http://stackoverflow.com/questions/3928202/get-microphone-volume although I may have this wrong it could be from 0 to 256 . You would have to experiment with taking either the maximum magnitude byte from the returned byte array or perhaps the RMS average depending on your application's needs. The size of the byte..
Getting decibel from an android microphone http://stackoverflow.com/questions/4271989/getting-decibel-from-an-android-microphone how to record samples from the microphone without ALC. From then on its basically all about the calibration and log magnitude. Essentially you will multiply or convolve by a frequency dependent calibration and then take 10 the log magnitude over.. log magnitude. Essentially you will multiply or convolve by a frequency dependent calibration and then take 10 the log magnitude over all or some of the frequency range. Then you'd have to take some calibration measurements for example frequency sweeping.. filter by convolving it with an input signal to apply a frequency flatness correction. You can then take the log magnitude of the result per unit time to determine wideband spl. Or you can do an FFT on the input data to generate a frequency spectrum..
Android 2.3 Visualizer - Trouble understanding getFft() http://stackoverflow.com/questions/4720512/android-2-3-visualizer-trouble-understanding-getfft which is what I am using states Returns a frequency capture of currently playing audio content. The capture is a 8 bit magnitude FFT. Note that the size of the FFT is half of the specified capture size but both sides of the spectrum are returned yielding.. output of the byte array getFft was given 124 points to keep it simple and I grabbed the first 31 bins. Here are the magnitudes of the first 31 bins 123 2 23 3 6 16 15 10 8 12 9 9 17 6 18 22 8 4 5 2 10 3 11 3 4 11 8 15 16 11 12 12 Any help or explanation..
Compare voice wav in android or voice tag ( voice commands ) API http://stackoverflow.com/questions/4935691/compare-voice-wav-in-android-or-voice-tag-voice-commands-api the original WAV file into frequency domain data in which each value in your transformed array represents the relative magnitude intensity of a particular frequency band . If the same person speaks the same word twice the resulting time domain data..
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 audio.. floatIndex sample32 Then you use micBufferData to create your input complex array. Once you get the results use the magnitudes of the complex numbers in the results. Most of the magnitudes should be close to zero except the frequencies that have.. input complex array. Once you get the results use the magnitudes of the complex numbers in the results. Most of the magnitudes should be close to zero except the frequencies that have actual values. You need the sampling frequency to convert the..
How to get frequency from fft result? http://stackoverflow.com/questions/7674877/how-to-get-frequency-from-fft-result looked like x index of array y size of number returned . There are some massive spikes both positive and negative in magnitude around 110 232 and small spikes continuing in that fashion until around 1817 and 1941 where the spikes get big again then.. at odd indices i.e. the real components are at index 2 i the imaginary components are at index 2 i 1 . To get the magnitude of the spectrum at index i you want re fft 2 i im fft 2 i 1 magnitude i sqrt re re im im Then you can plot magnitude i for.. components are at index 2 i 1 . To get the magnitude of the spectrum at index i you want re fft 2 i im fft 2 i 1 magnitude i sqrt re re im im Then you can plot magnitude i for i 0 to N 2 to get the power spectrum. Depending on the nature of your..
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