当前位置： 文江博客话题详情

其他声音，然后是原始 .wav 文件

发布于 2024-11-10 17:34:37 字数 6525 浏览 12 评论 0原文

我使用的是 microchip v8.63 的 pic18F4550：我使用了 picdem 的 C 程序语言：我们创建了以下程序：我们检索转换为 8 位 8000Hz 的 .wav 文件的二进制数据（声音是：有人说的“红色”），我们将数据写入 picdem 的“rom”。每个值都会被写入端口==>有一个盒子连接到。

问题：我不能在这里听到原始声音（有人说是：“红色”），而不是听到响亮的其他声音（没有噪音或爆裂声），而是听到响亮的其他声音。

这就是代码：

unsigned int b = 0;
unsigned int i = 0;
unsigned int j= 0;

#pragma romdata const_table  = 0x1200

const rom char my_const_array[] = "0b01010101
,0b10101010
,0b10101010
,0b10101010
,0b10101001
,0b01010101
,0b01010110
,0b10100101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010100
,0b10110101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b11010101
,0b00101010
,0b10101011
,0b01010101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b11010100
,0b10101010
,0b10101010
,0b10110101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101101
,0b01010100
,0b10101010
,0b10011010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10110010
,0b10100101
,0b01010110
,0b10101010
,0b10100101
,0b01011010
,0b10101010
,0b10101010
,0b11001010
,0b10010101
,0b01011010
,0b10101001
,0b01010101
,0b01101010
,0b10101010
,0b10101101
,0b00101001
,0b01010101
,0b10101010
,0b10010101
,0b01010101
,0b10101010
,0b10101010
,0b11010010
,0b10010101
,0b01011010
,0b10101001
,0b01010101
,0b01011010
,0b10010101
,0b10101101
,0b00101001
,0b01010101
,0b10101010
,0b01010100
,0b11010101
,0b10100101
,0b01011010
,0b11001010
,0b01010101
,0b01011010
,0b10100101
,0b00101101
,0b01010101
,0b01010110
,0b10110010
,0b10010011
,0b01010110
,0b10010101
,0b00101011
,0b01010101
,0b01010101
,0b01101010
,0b01010100
,0b10101011
,0b01100101
,0b00101010
,0b10110101
,0b01010101
,0b01011010
,0b10010101
,0b00101011
,0b01010101
,0b00101010
,0b10110101
,0b01010011
,0b00110101
,0b10100100
,0b10101010
,0b11010101
,0b01001010
,0b10101010
,0b11010010
,0b10101101
,0b01100100
,0b10101010
,0b11010101
,0b01001010
,0b10101010
,0b10101010
,0b10101011
,0b01101001
,0b00101010
,0b10110101
,0b01001010
,0b10101010
,0b11001010
,0b10101011
,0b01010101
,0b00101010
,0b10101101
,0b01010010
,0b10101010
,0b10110010
,0b10101010
,0b11010101
,0b00101010
,0b10101011
,0b00101010
,0b10101010
,0b10101010
,0b10101010
,0b10110101
,0b00100101
,0b01011010
,0b10101010
,0b10010101
,0b01101010
,0b10011010
,0b10101101
,0b00100101
,0b01010110
,0b10101010
,0b10010101
,0b01010110
,0b10100101
,0b10101011
,0b01001001
,0b01010101
,0b10101010
,0b10010101
,0b01010110
,0b10100101
,0b01101010
,0b10101001
,0b01010101
,0b01101010
,0b10100101
,0b01010101
,0b01100101
,0b01010110
,0b10101010
,0b01010101
,0b01010110
,0b10010101
,0b01010101
,0b01010101
,0b01010101
,0b01101010
,0b10010101
,0b01001101
,0b01010101
,0b01001011
,0b01010101
,0b01010101
,0b01010101
,0b10100100
,0b10101010
,0b11010101
,0b01010010
,0b10101011
,0b01010100
,0b10110101
,0b01010101
,0b01001010
,0b10101011
,0b01010101
,0b00101010
,0b10101010
,0b10101010
,0b10101011
,0b01010100
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101101
,0b01010010
,0b10100101
,0b10101010
,0b10101010
,0b01011010
,0b10101010
,0b10101010
,0b10110101
,0b01001010
,0b10010101
,0b10101010
,0b10101001
,0b01010110
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b01010101
,0b01011010
,0b10101010
,0b10101010
,0b01010110
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b01010101
,0b01010110
,0b10101010
,0b10101010
,0b10100101
,0b01011010
,0b10101010
,0b10101010
,0b10010101
,0b01010101
,0b10010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b00000000";

#pragma romdata

//void Delay(unsigned int);
void main (void)
{   

    TRISD = 0x00;               // PORTD  als uitgang
    TRISB = 0b00110000;         // RB4 en RB5 als ingang
    TRISA = 0x00;               // RA output

    RCONbits.IPEN = 0;          // prioriteit uit
    INTCONbits.GIE = 1;         // enable interrupt
    INTCONbits.RBIE = 1;        // interrupt portB aan

    while(1)
    {   
        _asm sleep _endasm  
    }
}

#pragma interrupt ISR
void ISR (void)
{

    if (INTCONbits.RBIF==1)
    {
        if(PORTBbits.RB5==0) 
        {
            TBLPTR = (short long) 0x1200;

            for(i = 0 ; i<sizeof(my_const_array); i++) {
                _asm TBLRDPOSTINC _endasm
                LATAbits.LATA2=TABLAT;

                b = 0;

                do{
                    b++;
                }while(b < 200);



            }
        }
    }   
    INTCONbits.RBIF = 0;

}
原文

I'm using the pic18F4550 from microchip v8.63: I used the C program language for the picdem: We created the following program: We retrieve the binary data of a .wav file converted to 8bit 8000Hz(the sound is: someone say's "red"), we write the data to the 'rom' of the picdem. Each value will be write to the port => there is a box connected to.

the problem: I can't here, the original sound (someone say's: "red") instead of that a hear a loud other sound (no noise or crackles) but a loud other sound.

That's the code:

unsigned int b = 0;
unsigned int i = 0;
unsigned int j= 0;

#pragma romdata const_table  = 0x1200

const rom char my_const_array[] = "0b01010101
,0b10101010
,0b10101010
,0b10101010
,0b10101001
,0b01010101
,0b01010110
,0b10100101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010100
,0b10110101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b11010101
,0b00101010
,0b10101011
,0b01010101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b11010100
,0b10101010
,0b10101010
,0b10110101
,0b01010101
,0b01010101
,0b01001010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101101
,0b01010100
,0b10101010
,0b10011010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10110010
,0b10100101
,0b01010110
,0b10101010
,0b10100101
,0b01011010
,0b10101010
,0b10101010
,0b11001010
,0b10010101
,0b01011010
,0b10101001
,0b01010101
,0b01101010
,0b10101010
,0b10101101
,0b00101001
,0b01010101
,0b10101010
,0b10010101
,0b01010101
,0b10101010
,0b10101010
,0b11010010
,0b10010101
,0b01011010
,0b10101001
,0b01010101
,0b01011010
,0b10010101
,0b10101101
,0b00101001
,0b01010101
,0b10101010
,0b01010100
,0b11010101
,0b10100101
,0b01011010
,0b11001010
,0b01010101
,0b01011010
,0b10100101
,0b00101101
,0b01010101
,0b01010110
,0b10110010
,0b10010011
,0b01010110
,0b10010101
,0b00101011
,0b01010101
,0b01010101
,0b01101010
,0b01010100
,0b10101011
,0b01100101
,0b00101010
,0b10110101
,0b01010101
,0b01011010
,0b10010101
,0b00101011
,0b01010101
,0b00101010
,0b10110101
,0b01010011
,0b00110101
,0b10100100
,0b10101010
,0b11010101
,0b01001010
,0b10101010
,0b11010010
,0b10101101
,0b01100100
,0b10101010
,0b11010101
,0b01001010
,0b10101010
,0b10101010
,0b10101011
,0b01101001
,0b00101010
,0b10110101
,0b01001010
,0b10101010
,0b11001010
,0b10101011
,0b01010101
,0b00101010
,0b10101101
,0b01010010
,0b10101010
,0b10110010
,0b10101010
,0b11010101
,0b00101010
,0b10101011
,0b00101010
,0b10101010
,0b10101010
,0b10101010
,0b10110101
,0b00100101
,0b01011010
,0b10101010
,0b10010101
,0b01101010
,0b10011010
,0b10101101
,0b00100101
,0b01010110
,0b10101010
,0b10010101
,0b01010110
,0b10100101
,0b10101011
,0b01001001
,0b01010101
,0b10101010
,0b10010101
,0b01010110
,0b10100101
,0b01101010
,0b10101001
,0b01010101
,0b01101010
,0b10100101
,0b01010101
,0b01100101
,0b01010110
,0b10101010
,0b01010101
,0b01010110
,0b10010101
,0b01010101
,0b01010101
,0b01010101
,0b01101010
,0b10010101
,0b01001101
,0b01010101
,0b01001011
,0b01010101
,0b01010101
,0b01010101
,0b10100100
,0b10101010
,0b11010101
,0b01010010
,0b10101011
,0b01010100
,0b10110101
,0b01010101
,0b01001010
,0b10101011
,0b01010101
,0b00101010
,0b10101010
,0b10101010
,0b10101011
,0b01010100
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b10101101
,0b01010010
,0b10100101
,0b10101010
,0b10101010
,0b01011010
,0b10101010
,0b10101010
,0b10110101
,0b01001010
,0b10010101
,0b10101010
,0b10101001
,0b01010110
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b01010101
,0b01011010
,0b10101010
,0b10101010
,0b01010110
,0b10101010
,0b10101010
,0b10101010
,0b10101010
,0b01010101
,0b01010110
,0b10101010
,0b10101010
,0b10100101
,0b01011010
,0b10101010
,0b10101010
,0b10010101
,0b01010101
,0b10010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b01010101
,0b00000000";

#pragma romdata

//void Delay(unsigned int);
void main (void)
{   

    TRISD = 0x00;               // PORTD  als uitgang
    TRISB = 0b00110000;         // RB4 en RB5 als ingang
    TRISA = 0x00;               // RA output

    RCONbits.IPEN = 0;          // prioriteit uit
    INTCONbits.GIE = 1;         // enable interrupt
    INTCONbits.RBIE = 1;        // interrupt portB aan

    while(1)
    {   
        _asm sleep _endasm  
    }
}

#pragma interrupt ISR
void ISR (void)
{

    if (INTCONbits.RBIF==1)
    {
        if(PORTBbits.RB5==0) 
        {
            TBLPTR = (short long) 0x1200;

            for(i = 0 ; i<sizeof(my_const_array); i++) {
                _asm TBLRDPOSTINC _endasm
                LATAbits.LATA2=TABLAT;

                b = 0;

                do{
                    b++;
                }while(b < 200);



            }
        }
    }   
    INTCONbits.RBIF = 0;

}

如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论， 你可以免费 注册 一个本站的账号。

评论（2）

§普罗旺斯的薰衣草 2024-11-17 17:34:37

这是一个开放式问题，我无法给你绝对的答案，但我可以给你一些尝试的想法。

  1. 您确定数据正确吗？获取数组 my_const_array[] 并编写一个小程序将其转换回 8 位 wav 并确保您听到正确的声音。对我来说，您列出的波形数据看起来非常短，只有大约 430 个样本，因此在 8000Hz 时，声音将需要大约 50 毫秒才能播放。这是正确的吗？此外，大约一半 (200+) 的样本值为“0b01010101”。

  2. 尝试切换每个字节的位顺序，从而翻转每个二进制值。 IE 0b01010101 变成 0b10101010

  3. 您是否以正确的速度计时？

我建议您将录制的语音样本替换为更可测量的内容（例如方波），然后记录输出以进行比较。

This is an open-ended question, I won't be able to give you the absolute answer, but I can give you some ideas to try.

  1. Are you sure the data is correct? Take the array my_const_array[] and write a small program to convert it back to an 8bit wav and make sure you hear the right sound. To me the wave data you have listed looks very short, there's only ~430 samples so at 8000Hz the sound will take around 50ms to play. Is that correct? As well, about half (200+) of your samples are the value '0b01010101'.

  2. Try switching the bit ordering of every byte, so flip every binary value. IE 0b01010101 becomes 0b10101010

  3. Are you clocking it out at the right speed?

I would suggest you replace your recorded voice sample with something more measurable like a squarewave, and then record the output for comparison purposes.

回复 原文
屋顶上的小猫咪 2024-11-17 17:34:37

你的程序可能是错误的！

我假设您使用的是一位 DAC，因此：

Line..

LATAbits.LATA2=TABLAT;

将仅将第一个（零）位复制到 CPU 引脚 RA2，其余 7 位将丢失。

Your program is probably wrong!

I suppose that you are using a single bit DAC so:

Line..

LATAbits.LATA2=TABLAT;

will copy only first (zero) bit to CPU pin RA2 the rest 7 are lost.

回复 原文
~没有更多了~

关于作者

国粹

暂无简介

文章
评论
27 人气
发私信

相关话题

更多

热门标签

操作系统 程序设计 IT运维 Linux系统管理 JavaScript 服务器应用 solaris C/C++ PHP Shell BSD Vue.js aix Oracle Python HTML 系统管理 HTML5 CSS 前端
更多

推荐作者

十二

文章 0 评论 0

飞烟轻若梦

文章 0 评论 0

OPleyuhuo

文章 0 评论 0

wxb0109

文章 0 评论 0

旧城空念

文章 0 评论 0

-小熊_

文章 0 评论 0

更多

友情链接

文江博客
    我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站，即表示您同意使用 Cookies 和您的相关数据。
    原文