└── README.md


/README.md:
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 1 | # HubeRSoundX
 2 | 无需任何高级权限的强力音频处理App<br>
 3 | 兼容**Android 12**及以上系统<br>
 4 | 具体发布时间详见 **BiliBili**（同名）<br>
 5 | **YouTube**将在两个月内同步发布，详见 youtube.com/@ameikarewa2116
 6 | ## 认识并了解 HubeRSoundX (以下简称HSX)
 7 | HSX理论上是全局音频处理，但如下场景可能无效：<br>
 8 | 1. 通话<br>
 9 | 2. 带有Offload且低延迟模式的游戏，如部分音游或MOBA类<br>
10 | 3. 开启了AAudio的低延迟的音乐播放器或游戏类App<br><br>
11 | **HSX(5.1)内置了独创HxCore曲线算法，同时借助Android DynamicsProcessing API，在可调的10段均衡器基础上同时进行二次音频渲染，能够尽可能地发挥硬件极限<br><br>
12 | 不同于Wavelet和Poweramp，HSX将通过多个Eq曲线，大幅度推动扬声器、耳机、音箱的低频动态范围。<br><br>**
13 | HSX支持多频段前级脉冲，能够在音频进入后级均衡器渲染前，进行一次音频 * **预渲染** * ，模拟各个设备的最优频响优化，甚至模拟环绕声、监听频响曲线
14 | ## 关于算法 - HxCore
15 | HxCore是在DynamicsProcessing API的基础上进行Eq和频响曲线计算，同时借助多声道逻辑计算每个声道独立的Eq，模拟不同的声音相位等<br><br>
16 | 如下是示例（前级预渲染）：
17 | ```java
18 | private void initializeEqBands(float[] freq, float[] freq_t, float[] gain_on, float[] gain_on_t) {
19 |     eqBands = new DynamicsProcessing.EqBand[HxControlCore.maxBandCount_Pre];
20 |     eqBands_T = new DynamicsProcessing.EqBand[HxControlCore.maxBandCount_Pre];
21 |     if (freq == null) {
22 |         freq = HxControlCore.frequencies_jbl_flip;
23 |     }
24 |     if (freq_t == null) {
25 |         freq_t = HxControlCore.frequencies_jbl_flip;
26 |     }
27 |     if (gain_on_t == null) {
28 |         gain_on_t = Default;
29 |     }
30 |     for (int i = 0; i < HxControlCore.maxBandCount_Pre; i++) {
31 |         eqBands[i] = new DynamicsProcessing.EqBand(true, freq[i], gain_on[i]);
32 |         eqBands_T[i] = new DynamicsProcessing.EqBand(true, freq_t[i], gain_on_t[i]);
33 |     }
34 | }
35 | private void initializeEqBands(float[] gain_on) {
36 |     initializeEqBands(null, null, gain_on, null);
37 | }
38 | ```
39 | ```java
40 | /* 频响曲线 */
41 | public static float[] HxCore_Surround_L = {0, 6f, 3, 0, 5, 2, 5, 3, 0, 0, 0};
42 | public static float[] HxCore_Surround_R = {0, 5, 0, 0, 2.5f, 0, 3, 3, 0, 0, 0};
43 | public static float[] JBL_Flip = {0, 0, 10, 7, 1.2f, 0, -2, -2.5f, 0, 0, 0};
44 | public static float[] JBL_PartyBox = {0, 9, 3.6f, 0, 0, 0, 0, 0, 0, 0, 0};
45 | public static float[] Origin_Voice = {4f, 1.5f, -0.44f, 0.7f, 2f, -4.5f, 0.2f, 1.7f, 3f, 0.8f, 0};
46 | public static float[] N12T_Origin = {9, -1, -6.6f, -4, 8.5f, -7.7f, -2.35f, -6, 1, 1, 1};
47 | public static float[] JBL_PS3300 = {1.5f, 5f, 3.7f, 1.9f, -3.6f, 1.5f, 3f, 1.9f, 1.75f, 1f, 0.6f};
48 | public static float[] Default = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
49 | ```
50 | Mbc多频段压缩同样经过HxCore算法进行了传参优化：
51 | ```java
52 | /* HXCORE LIMITER */
53 | public static float[] JBL_PartyBox_Mbc = {6, 4, 3, 0, 0, 0, 0, 0, 0, 0, 0};
54 | public static float[] N12T_Origin_Mbc = {1, 8, 7, 7, 10, 0, 10, -6, 6, 0, 4};
55 | 
56 | private static final float LIMITER_DEFAULT_ATTACK_TIME = 1;
57 | private static final float LIMITER_DEFAULT_RELEASE_TIME = 60;
58 | private static final float LIMITER_DEFAULT_RATIO = 10;
59 | private static final float LIMITER_DEFAULT_THRESHOLD = -2; 
60 | private static float LIMITER_DEFAULT_POST_GAIN = 0;
61 | public static DynamicsProcessing.Limiter HxCore_LIMITER;
62 | private void initializeMbcBands(float[] freq, float[] gain_on) {
63 |     eqBands_Mbc = new DynamicsProcessing.MbcBand[HxControlCore.maxBandCount_Pre];
64 |     if (freq == null) {
65 |         freq = HxControlCore.frequencies_jbl_flip;
66 |     }
67 |     for (int i = 0; i < HxControlCore.maxBandCount_Pre; i++) {
68 |         eqBands_Mbc[i] = new DynamicsProcessing.MbcBand(true, freq[i],
69 |                 LIMITER_DEFAULT_ATTACK_TIME,
70 |                 LIMITER_DEFAULT_RELEASE_TIME,
71 |                 LIMITER_DEFAULT_RATIO,
72 |                 LIMITER_DEFAULT_THRESHOLD,
73 |                 3.5f,
74 |                 2f,
75 |                 1.1f,
76 |                 2,
77 |                 gain_on[i]);
78 |     }
79 | }
80 | private void initializeMbcBands(float[] gain_on) {
81 |     initializeEqBands(null, null, gain_on, null);
82 | }
83 | ```
84 | 并与DynamicsProcessing.LIMITER协同工作，尽可能防止过高的低频电流声，同时防止音频爆音现象
85 | 


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