demo_audio使用ai_spreak双麦问题PCM采样率问题

demo_audio使用ai_spreak双麦问题PCM采样率不是设置的16k：
单麦没问题，双麦有问题，单麦设置16K输出PCM数据保存到SD卡的PCM数据播放16K双通道是可以正常播放
但是双麦情况下，输出PCM数据设置16K采样率，输出PCM设置保存到SD卡，正常播放应该在26K-28K采样率（使用32k采样率播放稍微快一点，22.1K播放慢了）。
帮忙查看验证一下是哪里问题？ **录音时间15秒，单麦15秒PCM数据大小936k，双麦15秒PCM数据大小1.37M** 
以下是保存到SD卡的PCM测试代码。
![输入图片说明](https://foruda.gitee.com/images/1714548332156247592/c79a7a43_1823587.png "微信图片_20240501152514.png")![输入图片说明](https://foruda.gitee.com/images/1714548686502632004/327f1db5_1823587.jpeg "2.jpg")

一下是保存到SD卡的aisp_task任务代码，代码跑的是#ifndef CONFIG_AISP_DIFFER_MIC_REPLACE_LINEIN里面
```

static void aisp_task(void *priv)
{
    short buf[ONCE_SR_POINTS * (2 + AISP_DUAL_MIC_ALGORITHM)];
    u32 time = 0, time_cnt = 0, cnt = 0;
    LDEEW_ENGINE_S *pstLfespdEng = NULL;
//    u32 memPoolLen = LDEEW_memSize();  //获取算法需要的heap大小
    u32 mic_len, linein_len;

printf("aisp_main run 0x%x,%s\r\n", (u32)LDEEW_version(), LDEEW_version());
 /*   printf("memPoolLen is:%d\n", memPoolLen);

dui_auth_info_t auth_info;
    // 此处信息请根据dui信息修改 https://www.duiopen.com/
    auth_info.productKey = "58f1aeeb54fadab27a6ce70fd222ec46";
    auth_info.productId = "279594353";
    auth_info.ProductSecret = "89249b0fb48d7c12454a079fc97aee72";
    extern int app_dui_auth_second(dui_auth_info_t *auth_info, u8 mark);
    if (0 != app_dui_auth_second(&auth_info, 0)) {
        printf("dui auth fail, please contact aispeech!!!\n");
        return;
    }
    puts("app_dui_auth_second ok\n");

void *pcMemPool = calloc(1, memPoolLen);  //申请内存
    if (NULL == pcMemPool) {
        return;
    }*/
#if 0
    /* start engine and pass auth cfg*/
    pstLfespdEng = LDEEW_RUN(pcMemPool, memPoolLen, "words=xiao ai tong xue,da sheng yi dian,xiao sheng yi dian,zan ting bo fang,xia yi shou;thresh=0.60,0.32,0.32,0.33,0.33;", wtk_handler, aec_handler); //唤醒词：小爱同学
    /* pstLfespdEng = LDEEW_RUN(pcMemPool, memPoolLen, "words=ni hao xiao le,da sheng yi dian,xiao sheng yi dian,zan ting bo fang,xia yi shou;thresh=0.60,0.32,0.32,0.33,0.33;", wtk_handler, aec_handler); //唤醒词：你好小乐 */
    if (NULL == pstLfespdEng || pstLfespdEng == (void *)0xffffffff) {
        printf("LDEEW_Start auth fail \n");
        free(pcMemPool);
        return;
    }
    printf("LDEEW_Start auth OK \n");
#endif
    __this->auth_flag = 1;

aisp_resume();
    int start_time = timer_get_ms();
    while (1) {
        if (__this->exit_flag) {
            break;
        }

if (!__this->run_flag) {
            os_sem_pend(&__this->sem, 0);
            continue;
        }

if (__this->exit_flag) {
            break;
        }

#ifndef CONFIG_AISP_DIFFER_MIC_REPLACE_LINEIN

if ((cbuf_get_data_size(&__this->mic_cbuf) < ONCE_SR_POINTS * 2 * (AISP_DUAL_MIC_ALGORITHM + 1))
            || (cbuf_get_data_size(&__this->linein_cbuf) < ONCE_SR_POINTS * 2)) {
            os_sem_pend(&__this->sem, 0);
            continue;
        }
        short tempbuf[ONCE_SR_POINTS * (2 + AISP_DUAL_MIC_ALGORITHM)];
        mic_len = cbuf_read(&__this->mic_cbuf, tempbuf, ONCE_SR_POINTS * 2 * (AISP_DUAL_MIC_ALGORITHM + 1));
        if (!mic_len) {
            continue;
        }
        linein_len = cbuf_read(&__this->linein_cbuf, (u8 *)tempbuf + mic_len, ONCE_SR_POINTS * 2);
        if (!linein_len) {
            continue;
        }

mic_len /= 2;
        //重组数据
        for (u32 i = 0, j = 0; j < ONCE_SR_POINTS; ++j) {
#if AISP_DUAL_MIC_ALGORITHM
            buf[i++] = tempbuf[j * 2];
            buf[i++] = tempbuf[j * 2 + 1];
#else
            buf[i++] = tempbuf[j];
#endif
            buf[i++] = tempbuf[mic_len + j];
        }

#else

mic_len = cbuf_read(&__this->mic_cbuf, buf, sizeof(buf));
        if (!mic_len) {
            os_sem_pend(&__this->sem, 0);
            continue;
        }
#if CONFIG_AISP_LINEIN_ADC_CHANNEL == 1 && (CONFIG_AISP_LINEIN_ADC_CHANNEL < CONFIG_AISP_MIC0_ADC_CHANNEL || CONFIG_AISP_LINEIN_ADC_CHANNEL < CONFIG_AISP_MIC1_ADC_CHANNEL)
#if AISP_DUAL_MIC_ALGORITHM
        s16 temp = 0;
        for (u32 i = 0; i < ONCE_SR_POINTS; ++i) {
            temp = buf[3 * i + 1];
            buf[3 * i + 1] = buf[3 * i + 2];
            buf[3 * i + 2] = temp;
        }
#else
        s16 temp = 0;
        for (u32 i = 0; i < ONCE_SR_POINTS; ++i) {
            temp = buf[2 * i + 1];
            buf[2 * i + 1] = buf[2 * i];
            buf[2 * i] = temp;
        }
#endif
#endif

#endif
        time = timer_get_ms();
        /*Feed data to engine*/
            static FILE *fd = NULL;
            static int fd_size = 0;
        if (storage_device_ready() && fd_size != 12345678) {
            if(!fd){
                char name[64];
                sprintf(name,CONFIG_ROOT_PATH"test.pcm");
                fd = fopen(name,"wb");
                if(!fd){
                    printf("--->fopen err : %s\n",name);
                }else{
                    printf("--->fopen ok\n");
                }
            }
            if(fd){
                putchar('@');
                //fwrite(near_data_buf,sizeof(near_data_buf),1,fd);
                fwrite(buf,sizeof(buf),1,fd);
                fd_size += sizeof(buf);
                if(fd_size > 100*1024*1024 || (time - start_time) >= 15000 ){
                    fclose(fd);
                    fd = NULL;
                    fd_size = 12345678;
                }
            }
        }

//LDEEW_feed(pstLfespdEng, (char *)buf, sizeof(buf));	//单MIC时TODO

#ifdef WIFI_PCM_STREAN_SOCKET_ENABLE
#if (WIFI_PCM_STREAN_TEST == PCM_TEST_MODE_0)
        short temp_buf[ONCE_SR_POINTS];
        extern void wifi_pcm_stream_socket_send(u8 * buf, u32 len);
        cbuf_read(&__this->aec_cbuf, temp_buf, sizeof(temp_buf));
        for (u32 i = 0; i < ONCE_SR_POINTS; ++i) {
#if AISP_DUAL_MIC_ALGORITHM
            __this->send_buf[4 * i] = buf[3 * i];
            __this->send_buf[4 * i + 1] = buf[3 * i + 1];
            __this->send_buf[4 * i + 2] = buf[3 * i + 2];
            __this->send_buf[4 * i + 3] = temp_buf[i];
#else
            __this->send_buf[4 * i] = buf[2 * i];
            __this->send_buf[4 * i + 2] = buf[2 * i + 1];
            __this->send_buf[4 * i + 3] = temp_buf[i];
#endif
        }
        wifi_pcm_stream_socket_send((u8 *)__this->send_buf, sizeof(__this->send_buf));
#endif
#endif
        time_cnt += timer_get_ms() - time;
        if (++cnt == 100) {
            /* printf("aec time :%d \n", time_cnt); */
            time_cnt = cnt = 0;
        }
    }

task_kill("uda_main");

// free(pcMemPool);

__this->auth_flag = 0;
    __this->run_flag = 0;
}
```

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