Thank you niko for your quick response. Do you happen to know what the negative vanues mean and what does each buffer element represent? Is it a specific audio frequency?
On Jul 7, 8:04 pm, niko20 <[email protected]> wrote: > No, they should be real RAW 16bit PCM values. If you aren't getting > values that make sense at just 16 bit shorts, then you have something > else wrong in your code. Make sure you are not casting weird or > anything like that. > > -niko > > On Jul 7, 12:53 pm, jdarladimas <[email protected]> wrote: > > > > > > > > > Hello Developers, > > > In an application that I am developing, I am using the AudioRecord > > class to detect sounds from the microphone. > > The minimum Buffer Size that I am allowed to use is 4096. > > > So, I get the values from the microphone buffer and put them in a > > short[] array that has the same size as the microphone buffer. > > The range of those values are from -2^15=-32768 up to 2^15, > > which makes sense since I am using PCM_16_ENCODING and the size of a > > short element is 16 bits. > > > When I test the app, I notice that it is quiet, the buffer values tend > > to 0. > > On the other hand, when there is noise, both the positive and the > > negative buffer values tend to their maximum( 32768 and -32768 > > respectively). > > My question is what those buffer values represent... > > Are they quantization levels or something else?? Can anybody help me? > > It is really important.. > > > Thank you in advance -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
