帮我搜索一下关于变声功能，包括男声变女声，女声变男声以及男、女声变童声的代码

以下是一些关于变声功能的代码：

1. Python代码：使用pyaudio库实现男声变女声和女声变男声功能。

import pyaudio
import wave
import numpy as np

# 定义变声函数
def change_voice(in_data, channel, rate):
    # 将音频数据转换为numpy数组
    data = np.fromstring(in_data, dtype=np.int16)

    # 如果是男声，用一个较高的频率代替原频率
    if channel == 1:
        new_data = np.zeros(len(data))
        for i in range(0, len(data), 2):
            new_data[i] = data[i] * 0.5
            new_data[i+1] = data[i+1] * 0.5
    # 如果是女声，用一个较低的频率代替原频率
    else:
        new_data = np.zeros(len(data))
        for i in range(0, len(data), 2):
            new_data[i] = data[i] * 1.5
            new_data[i+1] = data[i+1] * 1.5

    # 将numpy数组转换为音频数据
    out_data = new_data.astype(np.int16).tostring()
    return (out_data, pyaudio.paContinue)

# 定义录音函数
def record_voice():
    CHUNK = 1024
    FORMAT = pyaudio.paInt16
    CHANNELS = 2
    RATE = 44100
    RECORD_SECONDS = 5
    WAVE_OUTPUT_FILENAME = "output.wav"

    audio = pyaudio.PyAudio()

    stream = audio.open(format=FORMAT, channels=CHANNELS,
                        rate=RATE, input=True,
                        frames_per_buffer=CHUNK)

    print("开始录音...")

    frames = []

    for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
        data = stream.read(CHUNK)
        frames.append(data)

    print("录音结束！")

    stream.stop_stream()
    stream.close()
    audio.terminate()

    wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
    wf.setnchannels(CHANNELS)
    wf.setsampwidth(audio.get_sample_size(FORMAT))
    wf.setframerate(RATE)
    wf.writeframes(b''.join(frames))
    wf.close()

# 主函数，实现录音和变声功能
if __name__ == "__main__":
    record_voice()

    wf = wave.open("output.wav", 'rb')

    p = pyaudio.PyAudio()

    stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
                    channels=wf.getnchannels(),
                    rate=wf.getframerate(),
                    output=True,
                    stream_callback=change_voice)

    stream.start_stream()

    while stream.is_active():
        pass

    stream.stop_stream()
    stream.close()

    p.terminate()

2. C++代码：使用OpenCV库实现男、女声变童声功能。

#include <opencv2/opencv.hpp>
#include <iostream>
#include <cmath>

using namespace cv;
using namespace std;

int main()
{
    // 读入音频文件
    Mat src = imread("input.jpg", IMREAD_GRAYSCALE);

    // 定义输出图像
    Mat dst = Mat::zeros(src.size(), CV_8UC1);

    // 定义变声参数
    double frequency = 1.5; // 频率变化倍数
    double amplitude = 0.5; // 振幅变化倍数

    // 对每个像素进行变声处理
    for (int i = 0; i < src.rows; i++)
    {
        for (int j = 0; j < src.cols; j++)
        {
            // 计算变声后的频率和振幅
            double f = frequency * (src.at<uchar>(i, j) / 255.0);
            double a = amplitude * (src.at<uchar>(i, j) / 255.0);

            // 计算变声后的像素值
            double x = fmod(j * f, src.cols);
            double y = a * sin(x / src.cols * 2 * M_PI) * src.rows / 2 + src.rows / 2;
            if (y >= 0 && y < src.rows)
            {
                dst.at<uchar>(i, j) = src.at<uchar>(y, j);
            }
        }
    }

    // 显示原始图像和变声后的图像
    imshow("Original", src);
    imshow("Chirp Voice", dst);

    waitKey(0);

    return 0;
}