[android-developers] Recording High Frequencies ,can not working well in htc one x,nexus on .

2012-09-05 Thread tom tang
I need to record frequencies above 20kHz. My program can work well in almost devices,but it can not work well in htc one x,nexus on . ts like the phone has a low pass filter that eliminates these frequencies , Anybody knows how can I fixed this bug?? TKS!! -- You received this message because y

Re: [android-developers] Recording High Frequencies

2012-03-14 Thread Chris Stratton
On Wednesday, March 14, 2012 7:44:03 AM UTC-4, Spooky wrote: > > You didn't mention your sampling frequency Remember Nyquist? To > reproduce any digital signal, you MUST sample at twice the frequency of > the highest frequency you want to reproduce. In this case, you'd have to > sample at a

Re: [android-developers] Recording High Frequencies

2012-03-14 Thread Mark Murphy
On Wed, Mar 14, 2012 at 7:44 AM, Jim Graham wrote: > On Tue, Mar 13, 2012 at 01:06:55AM -0700, Aledis wrote: > >> I need to record frequencies about 17kHz. I'm using MediaRecorder like >> this: > > You do realize, I hope, that most humans, by the time they're 18 or so, > have lost all hearing abou

Re: [android-developers] Recording High Frequencies

2012-03-14 Thread Jim Graham
On Tue, Mar 13, 2012 at 01:06:55AM -0700, Aledis wrote: > I need to record frequencies about 17kHz. I'm using MediaRecorder like > this: You do realize, I hope, that most humans, by the time they're 18 or so, have lost all hearing about around 16 kHz, right? > recorder = new Medi

[android-developers] Recording High Frequencies

2012-03-14 Thread Aledis
Hello, I need to record frequencies about 17kHz. I'm using MediaRecorder like this: recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);