Thanks for your answers ... Well, since the same source code works on your computer and not on mine, I think the chopping problem is on my emulator. My computer is not as good as yours but it´s a Turion X2 notebook with 2gb ram, so if on a computer like this the emulator is not able to record and playback audio at the same time, even not fast enought to handle the audio stream before AudioRecord warns a buffer overflow, then I really don´t know what to try next. I hope I can find a phone to try the app in a real device. Also, I will try the sdk 1.6.
About ani´s post, I do understand it, but I´m using Windows XP SP3 and Android runs as linux but the API works for other people so this shouldn´t be an OS flaw. Also, I believe that if the emulator accepts 8k as record and playback sample rate (it doesn´t accept any othet value) then it should work properly for recording and playing the same audio stream in this SR. It ´s not the best option but if there´s a need for "manual" ressampling, it can be done. What can´t is the action of properly recording audio. Anyone else facing this same problem on SDK 2.1, AMD processor, windows xp sp3? On 15 mar, 11:17, ani <anish198519851...@gmail.com> wrote: > It is the problem with your driver which creates this chopping > effect.It is not able to read the data properly and if you check your > kernel messages there would be a buffer overrun message.This happens > because Linux is not RTOS and audio is running in real time. > > What you are recording is noise also along with voice data.So you need > noise cancellation algorithm also if you want proper sound. > > There is one more problem with respect to sampling rate.If your driver > supports "x" sampling rate and you want to sample at "y" sampling rate > then there is resampling that takes place which causes some loss in > data.So your re-sampler also should be good enough to do re-sampling. > > Generally audio re-samplers provided by android is not of good quality > and if you do playback and recording simultaneously then you can make > out that playback is not proper(there would be some audio distortion > in your playback audio). -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
