audiorecord

Hi all! Sorry in advance for my English. :) I am trying to make an audio recognition app with Echoprint code. One instance works fine, but we would like to listen simultaneously with several AudioRecords. For example, instead of analyzing 20 seconds of a song for recognition, we would like to have, for example, 3 audio recorders with 3 matches to improve the results. Ex. one listening from the 0s to 20s, another one listening from 0s to 10s and another one listening from 10s to 20s. That way we will have 3 matches-responses, which we expect will give us more accuracy or more possibilities of

I am trying to build application which records audio from the microphone for the later processing. Everything works fairly well, except the following problem: During the voice call (in and out) the recorded file gets no audio data, it contains just NULLs. I am using AudioRecorder and MediaRecorder, both have the same problem. The question is if this is normal API behavior or I am missing something? Here some additional info: Permissions: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.RECORD_AUDIO" /> SDK:

Here is a sample of the relevant code im working on: AudioRecord recorder = setupAudio(); recorder.startRecording(); SetupAudio method: public AudioRecord setupAudio() { AudioRecord recorder; minBufferSizeInBytes = AudioRecord.getMinBufferSize( RECORDER_SAMPLERATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT); Log.e("MoverAudio","BufferSize: " + minBufferSizeInBytes); recorder = new AudioRecord(MediaRecorder.AudioSource.CAMCORDER, RECORDER_SAMPLERATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, minBufferSizeInBytes); return recorder; } RECORDER_SAMPLERATE =

I'm developing an audio processing application where I need to record audio, and then process it to obtain features of that recording. However, I want the audio in a playable format to play it after with MediaPlayer. I've seen that to record audio to process it it's better to use AudioRecord, because I can get the raw audio from there. But then I can't write the data to a file in a playable format (is there any library to do this in android?). I used this method to record raw data and then write it into a file: http://andrewbrobinson.com/2011/11/27/capturing-raw-audio-data-in-android/ But when

In my Android App, I would like to take in some audio from the mic of the smartphone and play it immediately, live, like a microphone, with no lag. I am currently thinking of using AudioRecord and AudioTrack classes (from what I have read), but I'm not quite sure how to proceed. I checked out some other questions on Stack Overflow but they don't exactly answer what I would like to do. And most are from 2012. So how can I use these classes to input and output audio simultaneously? ALSO: I had a look at the MediaRecorder API , but from what I read, that requires you to save the audio to a file,