Android :: AudioTrack - Clicking Sound

Dec 15, 2009

I am getting this clicking sound when playing static pcm data. Anybody out there is having the same problem? This is not the data issue.

Android :: AudioTrack - Clicking Sound


Android :: AudioTrack - Clicking Error

Jan 21, 2010

I am trying to resolve the clicking problem while using the AudioTrack. It takes place only when playing the first part of the wave (pcm) buffer when the offset to the write is 0 (zero). track.write(buffer, offset, minBufferSize); It tells me that there is something wrong with the pcm data. Could it be because the wave data, I generate using Audacity, has some header as opposed to the pure pcm which does not? I was looking for the converter tools to generate pure pcm but found none. Applications I found generate only wave data so I am not able to test this assumption. At this point I am sure that filling the buffer is correct. Any ideas?

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Stop Sound With Media Player After Clicking Another Sound Button

Aug 2, 2012

how can i stop sound with media player after clicking another sound button? and how can i set alarm/ringtone/notification when long press adding admob on my app, ive read all posts i could google but still i get errors,\

code:
final MediaPlayer sound01 = MediaPlayer.create(this, R.raw.sound01);
Button s01 = (Button) findViewById(R.id.button01);
s01.setText(this.getString(R.string.quote01));
s01.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
[code]....

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Android :: AudioTrack Stop/release - AudioTrack Plays In The STREAM Mode

Dec 25, 2009

I need to stop the AudioTrack, regardless what's in the buffer, immediately when executing the stop/release. The AudioTrack plays in the STREAM mode. It appears that the AudioTrack finishes playing what's in the buffer and than stops. It seems that it's such a fundamental flaw since there are so many audio applications out there.

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HTC EVO 4G :: Clicking Sound At Boot

Oct 14, 2010

This may not be important at all but I did think this was a bit strange. After I rooted, I noticed a clicking type of sound coming from the camera whenever I booted the phone. Its kind of alarming but not sure if I am the only one.

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HTC Desire :: Barcode App - Clicking Sound

Apr 25, 2010

Ive just downloaded the Barcode scanner App from the market and when i use the Barcode Scanner my phones starts making clicking sounds, Is his normal with this app?

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Motorola Droid :: Clicking Sound On Keyboard

Feb 9, 2010

Anyone else have a clicking sound coming from there physical keyboard when you press each button?

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HTC Incredible :: Google Goggles - Clicking Sound

Jun 10, 2010

Whenever I take a picture in Google Goggles, i hear 2 clicking sounds coming from the phone. The first sounds comes when the capture button is pressed, and the second sound comes as soon as the picture is taken. I don't hear these noises when taking pictures through the regular camera app. It sounds like it's coming from inside the phone.

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HTC Droid Eris :: Turn On The Clicking Sound

Jul 2, 2010

I just did a factory reset on my phone to clear up some lag. It has definitely helped, but I'll wait and see after a few days. Anyway, I'm just about finished putting all of my customizations back, but there's 1 thing I had before that I can't find: When I click on an icon on the desktop screen, or in a menu, I used to have a clicking sound. I remember there was a setting for it, but I can't seem to find it.

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Samsung EPIC 4G :: Constant Clicking Sound - Sounds Electrical

Dec 1, 2010

My "beloved" Epic was working perfectly last night but this morning as it sits here, it is making a low clicking noise (about every 3-5 seconds). Almost sounds like electrical something. Nothing has happened to the phone (no water, dropped or anything).

Has anyone experienced this with their phone? I only got it less than 2 weeks ago too. The phone is perfect so far (obviously room for improvements with 2.2 but I am actually quite happy as is). I am so hesitant to even have to replace it because my battery life has been amazing! I feel like a got very lucky with this one. I still have tons of juice left by the time I go to bed at night (which is when I recharge it.)

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Samsung Captivate :: Change Clicking Noise To Another Sound When Touch Screen?

Jul 20, 2010

Are u able to change the clicking noise to another sound when u touch the screen?

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HTC Droid Eris :: Pinch Zoom In Google Maps And This Darn Clicking Sound

Dec 21, 2009

So I just picked up my Eris yesterday. For the most part it is working great right now but a couple things are a little annoying.

First, pinch zoom isn't working in the Google Maps app. Should it? Works great in the browser when surfing the web but not in maps for some reason.

Second, it clicks at me. For example, I'll hit the red power/call end button when I'm done using it to turn off the display. Then I'll set it down on the table or something and it makes these little intermittent click sounds just sitting there. After 5 minutes or so it stops. It isn't constant, just a couple clicks ever 10-30 seconds for a little bit then stops.

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Motorola Droid :: Clicking Sound From Droid Earpiece

Jun 22, 2010

I hear this faint clicking sound coming from the earpiece whenever I'm on a phone call.

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Android :: How To Use AudioRecord And AudioTrack?

Apr 30, 2009

I want to use AudioRecord and AudioTrack classes(in SDK 1.5) in my program. Where can I find how to use it. Is there any API demo program for this?. If not it is greatly appreciated if someone can post a sample code in this forum.

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Android :: How Do We Use AudioTrack Class?

Apr 23, 2009

I'm currently initiating the AudioTrack() for MODE_STREAM. I load some bytes using the write() and I see that it is working but once hit the play() call nothing happens. what is the matter? should I do something else that is not obvious? Any tips Google friends? My settings: streamType - STREAM_MUSIC sampleRateInHz - 44100 channel Config - CHANNEL _CONFIGURATION_STEREO audioFormat - ENCODING_PCM_16BIT bufferSizeInBytes - 256K the total size (in bytes) of the buffer where audio data is read from for playback. mode - MODE_STREAM.

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Android :: How To Play Music From AudioTrack

Feb 15, 2010

I want to play music from online mp3 link.I am reading the music data into a stream and trying to play it using audio track. But itz giving only noise.No music i could listen.Same buffer I can play in Media Player,But i could not play in audio track.

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Android :: Synchronizing AudioTrack And AudioRecord

Jan 21, 2010

My application uses AudioTrack in streaming mode and AudioRecord simultaneously.My problem is that I start them at the same time, but I have no guarantee that they will actually start playback ecording in the same timestamp. The reason I need this kind of accuracy is because I use echo cancellation (subtracting audio played to speaker from the recording).My echo canceller doesn't require an exact delay, but the delay introduced between AudioTrack and AudioRecord moves in the range of 250ms (between different runs), and that's too much - each run is different because they start themselves asynchronously. The API doesn't provide me a way to make sure they start in the same time, so I thought about measuring this starting delay somehow and then using it in my calculation.Does anyone have an idea how to do that, utilizing their API or in any other way?

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Android :: Audio Stuttering When Using AudioTrack

Apr 13, 2010

I'm in the process of wring a music player that can play SID tracks (music from the Commodore 64), and everything is progressing nicely, except that I sometimes get audio stuttering.The stuttering only happens when the player is in the background, and another application has focus. It's most noticeable when a cpu heavy app(like Google Earth) is running in the foreground.I have tried adjusting the priority of my thread and increasing the AudioTrack buffer size, but nothing has solved the stuttering problem.I believe the problem is that generating the audio takes quite a lot of cycles (I'm at 15-30% cpu load), and that my audio thread is being starved and cant keep up with AudioTrack's constant need for data.I'm must be doing something wrong, I can't imagine that gui threads should be able to starve a high priority audio thread.I hope someone have some ideas on how to get my player stutter free, as I'm at a loss :)

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Android :: Memory Leak In AudioTrack?

Jun 27, 2009

If I create and release multiple AudioTrack objects, the GREF count continually increases which eventually causes an application crash. Even with a forced garbage collection, I end up with the same high GREF count at the end of the loop.In my application, I continuously create AudioTracks from variable lenght buffers.I guess I can try and use a fixed size pool of AudioTracks each with a buffer large enough to fit my longest sound, and try and reuse them.Is there a better/correct way to completely clear resources used by an AudioTrack?

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Android :: How To Realize AudioTrack Class In SDK 1.1?

Aug 10, 2009

There is a AudioTrack Class in SDK 1.5 which can play PCM buffer directly.But it is not exist in SDK 1.1. I want to play PCM buffer in SDK1.1,but i don't know how.

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Android :: AudioTrack Sanity Test

Oct 2, 2009

I am trying to determine if I should go the ndk way to work on a music synth app, but first wanted to do a sanity check in the java layer by testing how many sine tones i could play concurrently, and so I tried this. And it's pretty low: I can only play about 4 or 5 tones before the obtainBuffer timeouts start increasing in number. Also, changing the media volume while the tones are playing disrupts the output.

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Android :: Service + AudioTrack - WAKE_LOCK?

Jan 25, 2010

I'm currently writing an app that uses a Service. A thread in the service generates an infinite stream of audio, and writes it to the AudioTrack. I want the audio to keep playing indefinitely until the user stops it. Based on my understanding of the PowerManager class, it looks like I should need a PARTIAL_WAKE_LOCK to keep the CPU awake so the audio can continue playing.

However, I left the audio playing on my phone with no wake lock, running on battery, in airplane mode, with all five items on the power control widget disabled, and the audio just kept right on playing for at least 15 minutes. Afterwards, I looked at the battery history, and it showed "Running (100%)", even though the Partial wake usage was negligible. Is there something special about AudioTrack which prevents the CPU from entering its deep sleep state? Should it be necessary for my service to grab a PARTIAL_WAKE_LOCK and its associated permission?

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Android :: AudioTrack Stop - Release ?

Dec 16, 2009

It doesn't seems as if the the stop and release immediately terminates the audio played by the MODE_STREAM track. It looks like it finishes playing the rest of the buffer and then stops.

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Android :: AudioTrack Start Called From Thread

Dec 8, 2009

I am getting the 'AudioTrack::start called from thread' when starting an AudioTrack. I am using it in a thread. I asume I shouldn't but why? I see it as a major limitation.

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Android :: Is AudioTrack Fundamentally Designed To Be Singleton?

Dec 14, 2009

Is the AudioTrack fundamentally designed to be a singleton? Methods on the OnPlaybackPositionUpdateListener receive just one argument, which is the AudioTrack itself. And since the AudioTrack does not have getTag/setTag methods I don't see any way to distinguish among multiple AudioTracks in the OnPlaybackPositionUpdateListener methods short of keeping track of references. So, if it's so why it's not implemented as a singleton? Any thoughts. I am trying to implement concurrent use of the AudioTrack. Anybody has any experience with this approach? Am I wasting time?

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Android :: Increase Speaker Volume Using AudioTrack

Jun 26, 2009

how to increase the volume of speaker using AudioTrack? the streamed audio is playing in speaker, but not loud as voice call. Here my code..............

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Android :: AudioTrack Cutting Audio Short

Dec 15, 2009

I am trying to play a 0.1s tone using audio track. I have done this succesfully in stream mode by calling play() then writing the array of short containing the data. However when I use STATIC mode and also in stream mode if I write the data before i call play() only about 0.06s of the audio is played. I have tried changing the buffer size but this has not effect.My understanding is that I have to write the data before I call play for static mode to work. Does anyone know what could be going wrong here?

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Android :: Continuous Raw Audio Playback Using AudioTrack

Dec 29, 2009

I am trying to play raw audio samples ( 16 bit, stereo, @ 32000KHz) using AudioTrack, in "MODE_STREAM" mode. I could play the first video buffer successfully but, After having received "onMarkerReached" for that raw audio buffer, I wonder how to push more audio data in AudioTrack ? without closing/stopping it. Writing more data to AudioTrack in "onMarkerReached" callback does not help. I am using the same thread to construct the AudioTrack and pump in audio - buffers and receive callbacks.

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Android :: ObtainBuffer Timed Out In AudioTrack.write

Sep 1, 2010

After stopping and restarting playback of an audiotrack stream, on some devices I consistently get;

W/AudioTrack( 2453): obtainBuffer timed out (is the CPU pegged?) 0x64acc0 user=00010000, server=00000000

after freezing for a couple of seconds. This happens whether I just pause() and flush() my audiotrack or release() and recreate it.

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Android :: AudioTrack - 51 - WARNING - ObtainBuffer() Timed Out

Nov 4, 2009

I am using MediaPlayer to play background music and SoundPool to play sound effects. All Audio data is stored in .ogg file format. Sometimes it happens that the MediaPlayer playback is interrupted for a fraction of a second if SoundPool.play() is called. Whenever this happens, the following two warnings are printed to logcat:

11-04 01:49:05.113: WARN/AudioTrack(51): obtainBuffer timed out (is the CPU pegged?) 0x2b6e8 user=000cc520, server=000cb710 11-04 01:49:05.113: WARN/AudioTrack(51): *** SERIOUS WARNING *** obtainBuffer() timed out but didn't need to be locked. We recovered, but this shouldn't happen (user=000cc520, server=000cb710)

Do you have any ideas what could cause the warning messages and/or how to avoid them? I.e. how to prevent SoundPool.play() from interrupting MediaPlayer playback?

An other warning that's sometimes appearing is: 11-04 01:55:49.793: WARN/AudioFlinger(51): write blocked for 89 msecs There seems to be no connection to the above messages, but do you have any ideas what causes this message and/or how to avoid it?

Here's some more detailed background information, maybe they are useful: My OpenGL powered game is split into three threads: One for rendering, one to take care about the game logic and the main thread to process user input. All Audio data is accessed through a central AudioManager class, which is only used in the game logic thread. (So this does not seem like a threading issue. Needless to say that synchronizing all methods has not solved the problem). The game runs smoothly at ~60 frames per second. According to DDMS the game causes ~33% system load (~10% in kernel space and ~23% in user space) on a G1. Even the idle task gets ~24% CPU time assigned while the game is running and input happens through the touch screen! (So it does not look like a performance problem) The MediaPlayer playback interruption always happens if SoundPool.play () is called in response of a touch screen input. Although touch screen input and SoundPool.play() happen in different threads. I've tried suspending the UI thread for various different delays between 8 and 32 msec after a MotionEvent has been processed, but again, without success...

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