Real speech will be not clear after using noise suppression

[dttlgotv]

Hi, I tried to use noise suppression to clear some noise. It seems well that much noise can be suppressed. But real people voice will be reduced and people voice sounds not clear and low.

So I have to use 'agc' to normalize it. But It sound worse. Any idea for it? Is the parameter not right in your codes below?

        gain_config.targetLevelDbfs = 1;
    gain_config.compressionGaindB = 50;
    gain_config.limiterEnable = kAgcTrue;


    if (WebRtcAgc_Init(agcInst, 0, 255, kAgcModeAdaptiveDigital, 16000) == -1 || WebRtcAgc_set_config(agcInst, gain_config) == -1) {
        fprintf(stderr, "Could not WebRtcAgc_Init\n");
    }

Thanks a lot for your answer.

Best, John