利用Fmode模仿QQ魔音效果

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利用Fmode模仿QQ魔音效果

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前提

本文将讲解如何利用Fmode来实现qq的魔音效果。

(没有QQ的魔音效果好,因为本人不懂音律方面的知识,参数配置也是按照别人来的,所以效果没有QQ的好。)

继续阅读之前,你可以先看一下AndroidStudio利用ndk-build编译fmod

文章结束,提供源码下载

工具

1->as

2->ndk

3->fmod

正文

首先创建一个空的Android工程.

gradle.properties中加入如下语句:

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android.useDeprecatedNdk=true

app的build.gradle中android节点下加入:

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sourceSets {
main {
jni.srcDirs = []
jniLibs.srcDirs = ['src/main/libs']
}
}

在app/src/main目录下创建目录jni目录、assets目录、libs目录

然后录制一段话,随便说些什么,把录音文件放在assets目录下.

打开fmod文件夹

打开api->lowlevel-inc目录,将里面的所有文件拷贝纸jni目录下

打开api->lowlevel->libs目录

将fmod.jar复制到app\libs目录下

打开armeabi-v7文件夹,将里面的so文件复制到jni目录下

找到你的ndk安装目录

然后找到platforms->android-??(随意)->arch-arm->usr->include目录下 找到jni.h 也拷贝至jni目录下

Activity的布局文件:

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound0"
android:text="普通播放" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound1"
android:layout_marginTop="10dp"
android:text="萝莉模式播放" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound2"
android:layout_marginTop="10dp"
android:text="大叔模式播放" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound3"
android:layout_marginTop="10dp"
android:text="搞怪播放" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound4"
android:layout_marginTop="10dp"
android:text="空灵效果播放" />

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="playSound5"
android:layout_marginTop="10dp"
android:text="惊悚效果播放" />
</LinearLayout>

Activity代码:

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package org.fmod.example;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
org.fmod.FMOD.init(this);
}


public void playSound0(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 0);
}
}).start();
}

public void playSound1(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 1);
}
}).start();
}

public void playSound2(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 2);
}
}).start();
}

public void playSound3(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 3);
}
}).start();
}

public void playSound4(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 4);
}
}).start();
}

public void playSound5(View v) {
new Thread(new Runnable() {
@Override
public void run() {
playSound("sound.mp3", 5);
}
}).start();
}


@Override
protected void onDestroy() {
org.fmod.FMOD.close();
super.onDestroy();
}


public static native void playSound(String fileName, int type);

static {
System.loadLibrary("playsound");
}
}

打开terminal窗口,进入到app/src/main/java目录下

输入

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javah org.fmod.example.MainActivity //Activity的全路径

生成头文件,刷新一下 然后将生成的头文件移动至jni目录下.

打开生成的头文件,将include jni.h 的尖括号换成双引号(不然没有jni的代码提示)

myplaysound.cpp代码:

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//
// Created by Gloomy on 2017/6/30.
//

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "org_fmod_example_MainActivity.h"
#include "fmod.hpp"
#include "fmod_dsp_effects.h"

using namespace FMOD;

JNIEXPORT void JNICALL Java_org_fmod_example_MainActivity_playSound
(JNIEnv *env, jclass jcls, jstring filename_jstr, jint type) {
const char *filename = env->GetStringUTFChars(filename_jstr, NULL);
System *system;
Sound *sound;
Channel *channel;
DSP *dsp;
bool isPlaying = true;


System_Create(&system);
system->init(32, FMOD_INIT_NORMAL, NULL);

char *filePath = (char *) calloc(256, sizeof(char));
strcat(filePath, "file:///android_asset/");
strcat(filePath, filename);

try {
system->createSound(filePath, FMOD_DEFAULT, 0, &sound);
system->playSound(sound, 0, false, &channel);
switch (type) {
case 0://正常
break;
case 1://萝莉
system->createDSPByType(FMOD_DSP_TYPE_PITCHSHIFT, &dsp); //萝莉
dsp->setParameterFloat(FMOD_DSP_PITCHSHIFT_PITCH, 2.5f);
channel->addDSP(0, dsp);
break;
case 2://大叔
system->createDSPByType(FMOD_DSP_TYPE_PITCHSHIFT, &dsp);
dsp->setParameterFloat(FMOD_DSP_PITCHSHIFT_PITCH, 0.8f);
channel->addDSP(0, dsp);
break;
case 3://搞怪
float frequency;
channel->getFrequency(&frequency);
frequency *= 2.0f;
channel->setFrequency(frequency);
break;
case 4: //空灵
system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dsp);
dsp->setParameterFloat(FMOD_DSP_ECHO_DELAY, 300);
dsp->setParameterFloat(FMOD_DSP_ECHO_FEEDBACK, 20);
channel->addDSP(0, dsp);
break;
case 5://惊悚
system->createDSPByType(FMOD_DSP_TYPE_TREMOLO, &dsp);
dsp->setParameterFloat(FMOD_DSP_TREMOLO_SKEW, 0.5f);
channel->addDSP(0, dsp);
break;
}
} catch (...) {
goto end;
}

system->update();
do {
channel->isPlaying(&isPlaying);
usleep(1000 * 1000);
} while (isPlaying);

end:
free(filePath);
sound->release();
system->close();
system->release();

env->ReleaseStringUTFChars(filename_jstr, filename);
}

这些声音效果的配置是看别人的我也不太懂。如果有想要自定义,可以打开fmod_dsp_effects.h 去看里面的备注.

在jni目录下创建Android.mk Application.mk

Android.mk:

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LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := fmod
LOCAL_SRC_FILES := libfmod.so
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := fmodL
LOCAL_SRC_FILES := libfmodL.so
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := playsound
LOCAL_SRC_FILES := myplaysound.cpp
LOCAL_SHARED_LIBRARIES := fmod fmodL
LOCAL_CPP_FEATURES := exceptions
include $(BUILD_SHARED_LIBRARY)

Application.mk:

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APP_ABI := armeabi-v7a
APP_STL := gnustl_static

打开terminal窗口,路径保证在app\src\main下。

输入ndk-build(如果没有配置去配置ndk环境变量)

等待成功生成so文件.然后直接run项目到手机上就好啦!

源码下载

源码打包下载