Move delete AudioMixer closer to point of re-allocation

                                                       keyValuePair.string());

            }

            if (status == NO_ERROR && reconfig) {

                delete mAudioMixer;

                // for safety in case readOutputParameters() accesses mAudioMixer (it doesn't)

                mAudioMixer = NULL;

                readOutputParameters();

                delete mAudioMixer;

                mAudioMixer = new AudioMixer(mNormalFrameCount, mSampleRate);

                for (size_t i = 0; i < mTracks.size() ; i++) {

                    int name = getTrackName_l(mTracks[i]->mChannelMask, mTracks[i]->mSessionId);