Call Audio Stream Modification in Android 4.0 ICS

by

It’s technically possible to inject audio into the voice call uplink on some platforms (Qualcomm’s MSM8960 and APQ8064, for example). Support exists at the hardware level and at the device driver level. But to make that functionality available to normal applications you’d have to create a custom Android ROM where you’ve added all the necessary user-space parts in both the Java layers and native layers of Android.

So the short answer is: no, there’s no standard way of doing this as an app developer (doesn’t matter if you use the SDK or NDK).
If you’re working for an OEM or by some other means are able to build and flash your own Android ROMs you can probably get the information you need by asking your platform vendor.

More Related Contents:

  1. Play an audio clip onto an ongoing call
  2. Inject uplink audio in call with Snapdragon MSM8960 SoC
  3. Stream audio to a phone call Android
  4. Playing an arbitrary tone with Android
  5. Android MediaPlayer works fine in Custom audio Streaming application up to Android 2.1 but not in higher versions
  6. Play audio file from the assets directory
  7. Android dialer application
  8. Android – Getting audio to play through earpiece
  9. How to make a phone call programmatically?
  10. android: Detect sound level
  11. Call from second sim
  12. initiate a phone call on android with special character #
  13. Why does it take so long for Android’s MediaPlayer to prepare some live streams for playback?
  14. AudioTrack, SoundPool or MediaPlayer Which Should I use?
  15. Android – build separate APKs for different processor architectures
  16. Lame MP3 Encoder compile for Android
  17. Speech to Text from own sound file
  18. Why is redirecting stdout/stderr on android not working?
  19. Android AudioRecord with CHANNEL_IN_STEREO read raw Audio buffer resulted in mixed Left and Right audio
  20. Android OpenAL?
  21. How to draw waveform of Android’s music player? [closed]
  22. Creating a WAV file from raw PCM data using the Android SDK
  23. Sharing audio file
  24. How to correctly set MediaPlayer audio stream type
  25. How to prevent VideoView/MediaPlayer from stopping other apps’ audio?
  26. Playing multiple sounds using SoundManager
  27. How to change audio tempo and pitch individuality using ffmpeg?
  28. Mixing Audio Files
  29. Detecting outgoing call and call hangup event in android
  30. How to generate the AAC ADTS elementary stream with Android MediaCodec

Leave a Comment