How to implement equalizer in Android 2.1?

Question

I know this has been asked earlier but I was not able to find much needed information.

I have implemented equalizer in 2.3. But I want to implement it it in 2.1

There are 2 ways I came across:

1. Either import the java library code from 2.3 to 2.1. But I do not have much hope with this.
2. Or, use JNI & Android NDK and use some out of box C/C++ libraries. (Please suggest are there any libraries available)

If any other solution is viable then please suggest.

Answer 1

As is mentioned in How to implement Equalizer in Android2.1? you will need to implement your own signal processing in native code with JNI