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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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?
View 2 Replies View RelatedI've read a lot of posts in this group regarding raw audio processing. Most of them include references by Mr. Sparks about support for this in "future releases". I hope maybe he was referring to Android 2.0? To be clear, all I want to do is obtain audio data from the microphone in as high a fidelity as possible to perform DSP against it. This is blissfully outside the realm of any DRM-laden audio output issues (I hope).
So, in short, can we get raw audio off the microphone using Android 2.0 and a Droid, for example?
How do i get access to the audio recorded by the microphone before it is accessed by the other applications.
View 1 Replies View RelatedIs there anyway in android to loop a recorded audio through microphone. I mean that instead of speaking in microphone, i should be able to send a recorded audio from code into it.
View 3 Replies View RelatedI have searched the whole group but wasn't able to find a answer for my problem.I want to record audio from the microphone, apply some audio signal processing and than save the processed audio data in a compressed format.I figured out, how to record audio uncompressed but now I wonder if I can use some api functions to store this data in a supported compressed format.
View 4 Replies View Relatedwe're a group of students and trying to implement some kind of voice cryptography over a gsm connection (without modifing any gsm related codecs, we render pure audio which gets transmitted via gsm). Is it possible to initiate a voice call and transmit our generated audio signal (means bypassing the microphone as the primary audio source for that call)? I write this because I'm slightly worried after reading some posts on this list/group which states that the android.telphony APIs are private and can't be called from processes outside the the telephone subsystem.
View 3 Replies View Related1st. Are our phones (HTC Incredible) capable of digitally recording audio from a mic? For example, can I plug a microphone into the 3.5mm jack and start recording the audio. (given the hardware is capable) Which leads me to my next question, if so, is there an app for it? I searched and searched but couldn't find much info on it...
View 3 Replies View RelatedIs possible to inject audio such as mp3 in the output of microphone streaming? I've found an application : spoofApp that change the voice during a call. How is possible?
View 3 Replies View RelatedIs it only possible for one object to access the microphone at a time? That is, could I simultaneously use an AudioRecord to do some audio processing and use a MediaRecorder to record the incoming audio?
View 2 Replies View RelatedHow can I get the volume of the audio stream coming in through the android microphone?
View 2 Replies View RelatedI'm experimenting with Android's audio recording and playback. Is there a way to enumerate the available audio parameters on my device?
Right now, when I pass a combination of parameters that the hardware (or emulator) doesn't like, I just get an error. So I am having to "guess":code...
Surely there's a better way!
This chart indicates that the only supported audio input sampling rate is 8 kHz? Is that correct?
I've implemented "Audio Capture Setup and Start" example (http:// developer.android.com/guide/topics/media/index.html) with small modification - the output format is MPEG_4 not THREE_GPP.
The result - records with extremely poor audio quality.
Could you help me to understand where is error and how is possible to do really good audio records with Android?
I've done an experiment with Camcorder - standard Android application. Sound quality of the video is same poor. The audio signal is extremely low (quite).
Is it "by design" or may be some hardware problem (T-Mobile G1)?
I've found description similar problem here - http://osdir.com/ml/AndroidDevelopers/2009-06/msg00752.html - "Microphone audio capture with emulator is of very poor quality". In my case this problem reproduces on the real device. Unfortunately I have not found answer. I read about some "custom" encoders.. but have not found any example how implement them.
As a first step toward a speech recognition project, we wrote a simple voice recording application based on the information in this thread: http://groups.google.com/group/android-developers/browse_thread/threa...
It is working; however, the audio is extremely poor -- too staticy for our needs code...
As a comparison, here is a similar audio file captured with audacity on a PC: http://juzzam.org:9090/myAudioFile_onPC.mp3
Has anyone been able to record high quality audio with the emulator? If not, is it any better on the android dev phone?
According to the documentation of MediaRecorder, there is only one audio encoder "AMR (Narrowband) audio codec" and three output formats--3gpp, mpeg, and raw AMR: http://developer.android.com/reference/android/media/MediaRecorder.html
Here is the Activity source: http://juzzam.org:9090/RecordMicrophone.java.txt
We are testing on Windows XP, with a Logitec USB microphone, eclipse ganymede, and we are using all the defaults for an android 1.5 app (no emulator command-line options.. we defined the sdcard in the avd manager).
I'm trying to programmatically determine what audio applications are installed on an Android phone. I'm able to enumerate all the installed applications, but don't yet see a way to figure out which ones are capable of playing audio? What property of the application would have to queried to determine if is capable of playing audio?
View 1 Replies View RelatedI put a new SD card in my phone, and when I connected it to my laptop via USB, it started making a very high pitched, annoying, noise....it continued until the drivers had installed, then it stopped instantly.
View 4 Replies View RelatedI have a Galaxy Note 2 and can't figure out how to record via my bluetooth headset not via the phone mic. Tried 20+ apps that record great via the phone mic but not via my headset.
View 10 Replies View RelatedThe microphone on my Aria doesn't seem to be working properly. When in a quiet room speaking in a "normal" voice over the phone, my voice on the other line (as I have been told multiple times by different people, and as I have tested myself) sounds very faint and distant, as if I'm talking into the phone a mile away. On speakerphone, the volume doesn't change - I still sound distant regardless of how far the phone is from my mouth. Of course, if I talk louder, and I mean VERY loud, I can be heard "normally", but my voice still sounds obviously distant. I did a hard reset of the phone and have not installed any new apps, but the microphone performance has not changed.
Is this a software bug? Or is it just a defective microphone? I'm thinking of exchanging the Aria with a new one from AT&T, hopefully the policy (since I've owned the phone not even for 30 days now) won't require me to pay full price. Or does anyone know anything about their exchange policy? Because the website is not very clear on pricing (if any) on exchanges that take place before the device has been owned for 31 days or more, in which case it's free. I think, I don't know. The site is just plain confusing.
xolo a500s has low microphone sound.
View 1 Replies View RelatedIs there any way to control and adjust the sound level when recording video? I recently took a video at a concert and the sound is clipping really bad. I also tried to connect various external microphones to the phone but then I only get statics / clicking noises.
Is it possible to connect an external microphone to the phone? (except for the one from the hands free set). Especially with the coming HD video recording feature for the X10 the sound quality really doesn't measure up to the video quality.
Im trying to figure out how to or if its possible to save audio received from a text and then use it as a ringtone. All I can do with it so far is just play it.
View 3 Replies View RelatedThe application allowed its users to control the volume of the artist; even mute it.How is this possible?Does adjusting artist sound/setting equalizer etc. mean performing some transformation of required frequencies? What sort of mathematics is required here(frequency domain transformations)?The application recorded users voice input via a mic. Assuming that the sound is recorded in some format, the application was able to mix the recording with the karaoke track(with artists voice muted). How can this be done?Did they play both the track and voice recording simultaneously? Or maybe they inserted additional frequency(channel?) in the original track, maybe replaced it?What sort of DSP is involved here? Is this possible in Java, Objective C?
View 1 Replies View RelatedHey, I have a problem with android programing when I try to record and then play the file that was just recored. I can both record and play the sound but the quality stinks. Its not just bad is really hard to listen to and sound abit like its a computer generated voice. I use the andriod SDK-emulator. The code that sets up the recording looks like this;
MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(path);
recorder.prepare();
recorder.start();
And the code playing the file later looks like this;
MediaPlayer mp = new MediaPlayer(); mp.reset();
mp.setDataSource(path); mp.prepare(); mp.start();
I don't know what part that makes the audio file sound really bad or if its just the emulator that makes it bad and that it would work on a real phone.
I'm using the SoundPool to play a series of small audio clips and am having issues with the audio when it starts. I have the audio attached to a button press. When I press the button mulitple times the tick persists. I was wondering if this was the audio file itself or is there something I need to do differently with the SoundPool other than play simply play the clip. These are .ogg files I created using Audacity. When I play them in my dekstop media player, they sound fine.
View 2 Replies View RelatedI am creating an android app that basically records an applies an "Effect" on the audio track then plays it back. I got my app to record an play back but I am stuck an not sure where do go from here. I have been Googling for days now trying to find a open source audio library or some way to change the audio after I record it. I currently have it setup to play back using SoundPool an I't lets me speed up an slow down the audio. I would like to do things like change pitch an add echo etc. I will appreciate any responses because I am totally stumped right now.
View 1 Replies View RelatedI recently transferred the videos I had on my instinct to the evo. I happen to play one of them for someone but there was no sound/audio on the videos.does anyone know why this happened or how I can fix this? It sucks being able to see but not hear what's going on in the videos.
View 1 Replies View RelatedJust made a video with my Motorola xt701. played it on the phone and computer it has no sound. Made another one with me screaming in the phone, still no sound. Do you have to have a mic plugged in to get sound when making a video or is there another issue??
View 8 Replies View RelatedI am trying to play the bigger size audio wav file(which is >20 mb) using the following code(AudioTrack) on my Android 1.6 HTC device which basically has less memory. But i found device crash as soon as it executes reading, writing and play. But the same code works fine and plays the lesser size audio wav files(10kb, 20 kb files etc) very well.
P.S: I should play PCM(.wav) buffer sound, the reason behind why i use AudioTrack here. Though my device has lesser memory, how would i read bigger audio files bytes by bytes and play the sound to avoid crashing due to memory constraints. Code...
Could someone guide me please to play the AudioTrack code for bigger size wav files?
I have a flash file that I open through smartswf and suddenly the audio is now echoing, like its playing the sound twice. It use to work OK on this ROM (cyanogenmod 10) with this app. It does the same with other flash files also. I have tried other apps and does the same thing, and tried reinstalling flash and rolling back to earlier versions with the same result.
View 1 Replies View RelatedI recently rooted my kyocera rise and everything was fine until I decided to install beats audio. My first mistake before installing the drivers was not backing up anything, yes I know that's bad. Okay so I installed the drivers with beats audio from the market then rebooted. Now I have no sound at all. No ring no music nothing. And my phone is running a lot worse now. Now come to find out apparently beats audio is not removable. The drivers can't be removed. I really need sound. Is there a way to unroot and completely factory reset the phone through factory settings?
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