Android :: Possible With Droid / Java To Change Frequency Of A Soundfile?
Sep 17, 2010
I try to change the frequency of a single soundfile. I managed to do that in android with the SoundPool thing. But the result sounds really bad.
So I stepped about the Fourier Transformation - but I am not sure if this is what I am looking for.
I want to load a single file and change the frequency of that file every time that file is played. So I can create melodies out of one tone. Is that possible with android/java?
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Jun 11, 2010
Is there any Java API for that? How can I read this information.
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Nov 21, 2010
I'm a newbie developer in Android.
I want to make an app like SetCPU that can manipulate cpu frequency in Android.
But I couldn't find some related APIs or materials.
I want to know following two things sincerely.
1) Are there APIs to change cpu frequency in Android?
2) If not, are there some APIs in linux?
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May 17, 2010
Just got the 2.1 OTA upgrade on my Eris. The mail client is stuck on "manual" for my Exchange account. I deleted the account and re-added it, but it still won't let me change it. I can select "as items arrive" or any of the other schedules, but as soon as I leave that screen and go back to it I find that it's set back to manual. Any ideas?
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Jan 31, 2009
I am trying to discover the frequency of recored audio. I am kinda new to multimedia programming (I am very new to android). Is there a way to get raw frequency information from the Mic?
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Aug 23, 2013
Mobileuncle shows that my device is only on WCDMA 2000 with other frequencies grayed out...particularly WCDMA 850 which the one I want to access to get HSPA, right now only getting 2G.
It might be just a APN problem even though I've changed the APN several times with no results, so I'm wondering about changing the Frequency of the WCDMA, or accessing all frequencies?
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Apr 4, 2014
I have successfully rooted my T200 via Farmaroot, and got some utilities like cpuset on it to check for frequency.
On the Octocore MT6592, I notice some unique things:
In any other setting than hotplug, and utilizing the cfq scheduler the phone underperforms with Antutu benchmark with any other setting.
Both my min and max frequency at set at 1663.
The phone runs the stock build:
Android 4.2.2
Kernel 3.4.49
thl.T200.158A.20140221.JB9.FHD.EN.COM.16P256_MT659 W_V2.0.13
However, reading through the mediatek's website for the chipset, it appears it can handle a max frequency of 2Ghz. For testing purposes I'd like to set that. And give it a try.
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Mar 8, 2010
Is there a way to tell which frequency band(s) a droid is currently using? I want to buy one of the z boost repeaters and it would be nice to be able to save and get a single band model, but how can I tell? I would assume my droid could tell me what it's currently using..
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Nov 8, 2009
I love the Droid so far but have a couple issues with vibrate. When I recieve a notification I have it set to vibrate but it only vibrates with a couple quick pulses. This may not be enough vibration for me to notice at times while its in my pocket. Is there away to adjust the frequency of vibrations?
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Sep 28, 2010
Is there any tool we can convert ddx file to java?
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Sep 4, 2010
Is it possible to adjust the update frequency for the stock weather app on the X? Or does anyone know how often it updates? I think it is getting it's data from AccuWeather.com.
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Jun 15, 2010
I am writing an app that has a consistent code base, but has different resources that make it a new "app". My ant script copies AndroidManifest.xml, res and assets dirs for a particular app prior to kicking off the build. This approach works great if all the apps have the same application package name. However, I want to be able to install more than one app from this common code base, so I must change the application package name. If I change the package names in each AndroidManifest.xml, then R.java gets generated with the new package name. This causes all my references to the resources constants in my common code base to throw an error. It would be great if I could specify the package name I want aapt to use when generating R.java. Does anyone know if this is possible?
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Aug 23, 2010
Is it safe to do Menu>Device Selection>Show Other Frequency Sets on my Droid and run it like a Nexus One 1gHz processor? I have a stock kernel and am currently at 800mhz after the autodetect.
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Jun 7, 2009
Is it possible to change the minWidth/minHeight values in Java context (not with XML widget definition)?
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Oct 6, 2010
I have a layout xml file with a linear layout. One of the children is again a ViewGroup Relative layout. In my java code i want to change the width of this child Viewgroup for my requirements. I tried this
ViewGroup childViewGroup = (LinearLayout)findViewById(childViewGroup);
LayoutParams l = childViewGroup.getLayoutParams();
l.width = 360;
childViewGroup .setLayoutParams(l);
I couldn't do this because findViewById(childViewGroup) doesn't fetch ViewGroups it does only for Views. Note: I cant define a whole new layout.xml for this minor requirement since it is huge layout file and might cause performance overhead. I wanted to just change the width of the child view group in my java activity code.
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Jul 17, 2009
I already know the frequency for the carrier signal and all the technology around gps. The question i have: Is it somehow possible to get the received frequency of the signal? I am asking, because i want to derive some functions from doppler navigation for which i need the received frequency of the gps signal, in order to compare it with the carrier frequency. I know, that this is very hardware related, are there any possibilities to grab the information i want to?
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Jul 21, 2009
I tried use ADB shell to execute "echo 528000 > /sys/devices/system/ cpu/cpu0/cpufreq/scaling_max_freq" to set CPU frequency successfully. But i can't find any API for applet to control CPU frequency. Have any API for this function? or Have any API that has execute shell command capability?
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Mar 25, 2010
I'm doing a voice recording using AudioRecord class and the main requirement that the frequency must be 16000 Hz. I'm using only emulator in development process for now and met the problem that I can't set frequency more than 8000, otherwise I get bufferSize -2, and can't create instance of AudioRecord with such buffer. Thank you to Szabolcs Vrbos, he told me that this problem is only with emulator and several Samsung phones, device can record with higher frequency.I need a word from Android engineers that I will be able to record voice with 16000 Hz frequency on for instance HTC Hero (Android 1.5)or similar device with os 1.5 or higher.
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Jul 28, 2010
Any app to check that the cpu frequencies are being set to low values that I selected from setCPU while the screen is off ?
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Feb 11, 2009
I wanted to get the frequency of accelerometer output. How many readings can I get per second? And to what precision do I get?
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Jun 9, 2009
I wish to obtain the frequency of an input signal from the mic. Can anyone send me some pointers on how this may be accomplished.
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Oct 9, 2010
Is there a way to set update frequency on the gmail application? I don't want the gmail app to constantly check for updates and drain battery.
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Oct 17, 2010
I am looking for some help. I'm new to android, and java development. I've got a pretty good handle on the basics, but I'm having an issue figuring out some more advanced operations. I'm working a guitar tuner, which is a stepping stone to a chromatic piano tuner. There is no public API for frequency analysis, so I'm thinking I need to write into code a Fast Fourier Transform, and I'll assume I need to import a different package for this. Once I display the frequency of any given note, I need it to reference it's offset to a pre-measured Mhz. There is alot to write, I'm aware, but my first step is to try to figure out HOW to get the frequency, and display it in the UI.
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Oct 11, 2010
I am trying to understand how to go about determining the frequency of various sounds captured on the phone via microphone. I am attempting to display a graph plotting the frequency of the note.
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May 3, 2010
I started using Pure Calendar today and love it.here is a "Select Update Frequency" setting that can change from 6 hours to "When Calendar is Modified."I left mine on 6 hours to begin with, but I have noticed that when I modify my Exchange or my Google Calendar (on my phone OR on my computer), the Pure Calendar widget updates almost instantly.Anybody know why? Is it a bug in the Widget? Or is it supposed to update the Widget instantly despite being set to 6 hours?
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Nov 1, 2012
So, I want an app where I store different texts, which then later pops up when I want, like every 24hr or every morning. I would like to make this app myself because I want it simple and to understand it completely.
I am not new to programming, but I don't know this language. Do you think this would be hard for me, to create this app, but with "full guidance", .
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Oct 5, 2012
Is there some app that would show me cpu frequency being used over a period of time in, say, a graph view? I want to see what freq is my phone is using while the screen is off.
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May 19, 2010
i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
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Mar 16, 2009
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
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Apr 16, 2010
How often does HTC do updates? My mate has a blackberry storm and it seems to always be updating on her, it drives her crazy!
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