It seems that this question has been asked before, I just would like to know whether there is an update in Android.I plan to write an audio application involving low delay audio I/O (appr. < 10 ms). It seems not to be possible based on the methods proposed by the SDK, hence is there - in the meantime - a way to achieve this goal using the NDK?
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I've started to recognize a peculiar problem. During a phone conversation on my Hero, I will start talking, and the other person will start talking just after that (maybe a second or two), then they stop, as they apparently now hear me "interrupting" them. In other words, to them, they started talking first, then I start but to me, I started talking first! (No, I am not purposely interrupting them) It's hard to describe, but it seems that there may be a delay in my audio getting to them. It seems to happen with all callers. Did I make this clear? Now, I am wondering if this happens when I am away from home as well, as I use an Airave device at home. Does anyone else experience this? Does anyone have a suggestion on how to test this? Or a solution?
View 8 Replies View RelatedI use a BT A2DP headset with route planners Sygic and Navigon running on a HTC Flyer tablet with Android HC. With every spoken instruction the first 2~3 seconds are lost because of some delay when audio is started. I know for sure that this delay is not in the headset.
View 1 Replies View RelatedDoes anyone know if there is a way for either meridian or the regular android player to recognize audio tags on lossless audio files?
View 1 Replies View RelatedIs there an Android equivalent to the iOS Core Audio / Audio File Stream Services? I need to be able to read audio bytes from a network and feed them to the audio system under my control, so I can do my own timeouts / reconnects / range requests / etc. without interrupting the audio playback (since the system audio thread would be playing audio already enqueued). It seems that MediaPlayer doesn't give me this level of control. Is there a lower-level framework that does, either in the SDK or NDK?
View 2 Replies View RelatedI want combine two audio files. (A audio file + B audio file = AB audio file)So, my search result is:
1. useing an AudioTrack.
2. decode PCM from audio file.
3. combine PCM.
This is currect? It there another way?
I want to record a sample from the microphone, then I want to play the recorded file maximizing the volume and apply some audio effect, like modifing sample rate or addind an echo.Waht is the best way? is there an example?
View 1 Replies View RelatedCould you please let me know how to do the audio record in android emulator and play the same recorded audio. Could you please help me in proceeding in development.I tried with MediaPlayer API's also.Its not working.
View 5 Replies View RelatedIs there a way to determine the audio format of an audio file in Android? On normal java I do it like this:
File file= new File(...);
AudioInputStream stream = AudioSystem.getAudioInputStream(file);
AudioFormat format= stream.getFormat();
I am writing a application which will write to a file. Now I want to show the contents of the file but How do I delay the show function so that there is enough time for the writing to be done before continuing?
View 2 Replies View RelatedI am using WebView in a number of screens in my application, and notice that it takes couple of seconds when starting up for the first time. What can I do to speed it up besides trying to create one in a separate thread beforehand?
View 3 Replies View RelatedI am new to android development, also new to java. I have many years of experience with OO PHP, so it's not hard for me to quickly learn Java and Android, but I still don't know many things like Thread class. I just started developing a simple app. What I want to do is that when a button is clicked, then the TextView is update in this way: the background is changed to black (by default it's set to white) Then it should wait a half a second and then set the background back to white and update the text inside the TextView
Here is my code, it's inside my Activity class:
public synchronized void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.btnPlay: showNewDraw(); break; } protected void showNewDraw() { textResult.setBackgroundColor(Color.BLACK); textResult.setText("Before sleep"); try { Thread.sleep(500); } catch (Exception e) { textResult.setText("Something wrong"); } textResult.setBackgroundColor(Color.WHITE); textResult.setText("After sleep"); }
The way it works now is that it seems to actually take 1/2 second from the time the button is pressed and text is updated, but the background is not reset to black and back to white - it always stays white. Either it is being set to black and instantly reset to white or it's just never set to black. What should I do in order for the "delay" effect to work?
I need to let service sleep for 0.5 sec just as using Thread.sleep(); is there any method??
View 1 Replies View RelatedI want to make a dummy progress dialog appear for 2 or 3 seconds. It won't actually do anything other than say detecting.
I have the code:
CODE:................
But what do I put in between the show, and the dismissal to have the dialog appear for a few seconds?
I am having a hugely annoying issue with delays using HTTPClient and post the first time I call execute on the client the response takes 5 seconds to come back. Subsequent calls take around 100 to 200 ms. I am using the Apache client so does anyone know why this takes so long? The client setup looks like below
CODE:.........
The timing for this look like below.
CODE:......................
I'm in a process of creating a memory game. My problem is that whenever i click for the second time, i can't even see toggled button. To be clear - first click toggles the togglebutton, so i can see the number it holds, the second click on a different togglebutton is suposed to toggle it, show me the number and then proceed to either set a score +1 if numbers are the same, or reverse them back again if they're different.
Below is the code that i use as my onClick function, i've been thinking about putting some kind of sleep or delay function somwhere in the second "if block" - (if(klikniecia ==2)).
CODE:...........
I think, about setting a delay here, so i can see both of the cards, regardles if the're the same or not before reverting them.
CODE:...................................
I am using a menu in my application Same as this post... I am using a gallery view for display my menu items
Text Gallery on Android?
Problem is that, i implement onItemSelected listener for gallery, so that when new item is selected data related to that topic loaded. But i also want to allow user to scroll the gallery fully. but each time when user move to next item onItemSelected() function called and it start loading data.
All i want to do is to put some delay in onItemSelected() function, so that if in between that delay user scroll next item than there is no need to load data of previous but for the current. Time may be 1 second. If user dose not go for next item in 1 second, that data of that item must be loaded.
I thought to start a thread,but each time for onItemSelected() there will be new thread...
I try this to.
CODE:............
But Fond Exception.
CODE:.............................
Is it possible to set a delay at which the scroll bar at the right side appears? The idea is that when the user begins to scroll, the scroll bar does not show up immediately, but if the user scrolls long enough.
I was looking for some time now and found just a getter method getScrollDefaultDelay (), which gets the time in ms when the scroll bar dissapears. How could I control the delay in my case?
I have my own BroadcastReceiver instance for Intent.ACTION_HEADSET_PLUG action.
There is about 1-2 seconds delay between actual physical unplugging a headset and a moment when my BroadcastReceiver is notified about that.
CODE:........................
How to decrease the delay?
I want to be able to call the following method after a specified delay. In objective c there was something like:
[self.performSelectorAfterDelay @selector(DoSomething) with Object:nil afterDelay:5];
Is there an equivalent of this method in java? For example I need to be able to call a method after 5 seconds. Code...
Our team has been working on a live video application for Android and we'd like to get to a very low end-to-end delay. We use H.264 coded video, RTP packetization, and RTSP to reach the player. We have been experimenting with CIF resolution on Android 2.0. We have been experiencing about 3 seconds of delay on the player side. Any tips on how we could reduce it?
View 2 Replies View RelatedI am working on a game that displays its graphics through a modified SurfaceView.The game scrolls around a map based on the location of the main character.That all works fine.I am trying to add a feature to the game that allows you to touch the screen and drag the camera around to see other parts of the map.This is where I am running into trouble.The game's SurfaceView overrides 'public boolean onTouchEvent (MotionEvent event)'to call another method in the game's thread which handles the events.Sometimes, this works fine (although the frame rate drops significantly while the screen is touched).Other times, there will be a delay of several seconds before the game responds to a touch event, during which time the game continues, but the user loses all control.During these delays, a message sometimes appears stating that my activity is not responding, and giving the options to 'Force close' or 'Wait'.If the user selects 'Wait', the game almost always resumes right away, but these delays are obviously not acceptable.The delays occur only the first time the screen is touched after the game is started.Once the game has resumed after a delay, the touch events work just fine again.
View 6 Replies View RelatedI have* two activities*,
*1st one* has a ques and 4 options.
*2nd one* is like a result page (... displaying if your ans is correct or not ...and showing the right ans ..)
Now what i want is when a user clicks :
on a right option [or wrong option] ..i want to turn that Image button into green [ red] .*.and wait for a while* ..and then go to the result activity ..
*so my only concern is onclick of a ImageButton ... how to wait for a while .. and then move to other activity* * * any kind of suggestion will do ..
This is something pretty small but annoying none the less. When I run Lattitude, and it shows my location on the map, my name is spelled wrong. I have gone into my gmail settings and changed my name, which was spelled wrong in there. Is there a delay in updating to lattitude?
View 1 Replies View RelatedI am streaming an rtsp video to Android. How could I calculate network metrics like packet loss, jitter or delay?
View 1 Replies View RelatedI wrote an app that saves a camera picture to the SD card, then accesses the file later to display it into an ImageView. This works fine for all devices except the HTC Droid Eris (maybe the version Eris is running?):
ImageView img = (ImageView) findViewById(R.id.ImgProfile1);
BitmapFactory.Options options = new BitmapFactory.Options(); options.inSampleSize = 4; Bitmap bm = BitmapFactory.decodeFile("sdcard/" + filename, options); img.setImageBitmap(bm); Is there a different method of referring to the sdcard location on 1.5, 1.6, or the Eris itself?
I have a Receiver for BOOT_COMPLETED intent and it will start a Service by calling startService with an intent and the Service processes that intent in onStartCommand function by spawning a thread that does a HTTP post to a server.On powerup, sometimes it takes 3 to 5 seconds to get the active data connection on phone, when this happens Service fails to do HTTP post as there is no data connection. Is it possible for the Receiver to send the intent to Service using startService with a delay.? so that when onStartCommand of Service is called data connection is ready to post data.
View 2 Replies View RelatedI want to show automatic checklist in android. For example I can have 4 list of item with unchecked check box adjutant to that.After 5 sec. delay I want to check the first item then move on to second. At the end of 20 sec. I should have all 4 check box checked one by one.Any idea how should I go on doing this ? I can use list view with checkbox option on.right?I am a .net programmer and this is new experience for me so any comment / advise is appreciated.
View 2 Replies View RelatedI'm using VideoView to play an RTSP video stream. It works fine, however on my Android phone the audio lags the video by about 3 seconds. If I watch it on my computer with VLC both the audio and video are in sync. Has anyone else experienced this audio delay before and how might I go about correcting it on the phone.
View 4 Replies View RelatedAn app I'm developing opens a TCP socket connection to a server. That works great, no problems. What I want to do is simulate network delay and slow speeds, but the changes don't do anything. I telnet in to the emulator console just fine and can set the delay and speed changes, but they don't affect my app in any way. Even disabling data entirely (gsm data off) doesn't do anything. However, all of the settings affect the browser, just not my app. I'm just using a regular Java socket (java.net.Socket). What am I missing?
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