private void showInfo() {
        String[] dtype = new String[]{
            "none", "no noise shaping", "triangular spectral shape", "ATH based noise shaping", "ATH based noise shaping(less amplitude)"
        };
        String[] ptype = new String[]{
            "rectangular", "triangular", "gaussian"
        };
        System.out.println(String.format("frequency : %d -> %d", ResamplerHelper.srcSamplingRate, ResamplerHelper.dstSamplingRate));
        System.out.println(String.format("attenuation : %gdB", ResamplerHelper.attentuation));
        if (ResamplerHelper.srcFloat && ResamplerHelper.srcFloat == ResamplerHelper.dstFloat) {
            System.out.println("bits per sample : float -> float");
        } else {
            if (ResamplerHelper.srcFloat) {
                System.out.println(String.format("bits per sample : float -> %d", ResamplerHelper.dstBPS * 8));
            } else if (ResamplerHelper.dstFloat) {
                System.out.println(String.format("bits per sample : %d -> float", ResamplerHelper.srcBPS * 8));
            } else {
                System.out.println(String.format("bits per sample : %d -> %d", ResamplerHelper.srcBPS * 8, ResamplerHelper.dstBPS * 8));
            }
        }
        System.out.println(String.format("channels : %d -> %d", ResamplerHelper.srcChannels, ResamplerHelper.dstChannels));
        if (ResamplerHelper.monoChannel > -1) {
            System.out.println(String.format("mono channel : %d", ResamplerHelper.monoChannel + 1));
        }
        System.out.println(String.format("length : %d bytes, %g secs", ResamplerHelper.length,
                (double) ResamplerHelper.length / ResamplerHelper.srcBPS / ResamplerHelper.srcChannels / ResamplerHelper.srcSamplingRate));
        if (ResamplerHelper.dither == 0) {
            System.out.println("dither type : none");
        } else {
            System.out.println(String.format("dither type : %s, %s p.d.f, amp = %g",
                    dtype[ResamplerHelper.dither], ptype[ResamplerHelper.pdf], ResamplerHelper.noiseAmp));
        }
        System.out.println();
    }