linux下usb音频记录程序，采样8000，双通道，记录10s切换记录下一个文件，统计是否丢包，文件名为系统当前时间，文件记录路径在/mnt/disk/record/Audio/下，用c写

以下是一个简单的C语言程序，可以在Linux下录制USB音频，并按照要求进行文件切换和丢包统计：

#include <stdio.h>
#include <stdlib.h>
#include <alsa/asoundlib.h>
#include <time.h>
#include <unistd.h>

#define SAMPLE_RATE 8000
#define CHANNELS 2
#define RECORD_TIME 10
#define RECORD_PATH "/mnt/disk/record/Audio/"

int main()
{
    int err;
    int pcm;
    snd_pcm_t *capture_handle;
    snd_pcm_hw_params_t *hw_params;
    unsigned int rate = SAMPLE_RATE;
    unsigned int channels = CHANNELS;
    unsigned int buffer_time = RECORD_TIME * 1000 * 1000;
    char filename[100];
    int file_count = 0;
    int lost_count = 0;
    int total_count = 0;

    // 初始化录音设备
    if ((err = snd_pcm_open (&capture_handle, "default", SND_PCM_STREAM_CAPTURE, 0)) < 0) {
        fprintf (stderr, "cannot open audio device %s (%s)\n", "default", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
        fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_any (capture_handle, hw_params)) < 0) {
        fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_set_access (capture_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
        fprintf (stderr, "cannot set access type (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_set_format (capture_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
        fprintf (stderr, "cannot set sample format (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_set_rate_near (capture_handle, hw_params, &rate, 0)) < 0) {
        fprintf (stderr, "cannot set sample rate (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_set_channels (capture_handle, hw_params, channels)) < 0) {
        fprintf (stderr, "cannot set channel count (%s)\n", snd_strerror (err));
        exit (1);
    }

    if ((err = snd_pcm_hw_params_set_period_time_near(capture_handle, hw_params, &buffer_time, 0)) < 0) {
        fprintf(stderr, "cannot set period time (%s)\n", snd_strerror(err));
        exit(1);
    }

    if ((err = snd_pcm_hw_params_set_buffer_time_near(capture_handle, hw_params, &buffer_time, 0)) < 0) {
        fprintf(stderr, "cannot set buffer time (%s)\n", snd_strerror(err));
        exit(1);
    }

    if ((err = snd_pcm_hw_params (capture_handle, hw_params)) < 0) {
        fprintf (stderr, "cannot set parameters (%s)\n", snd_strerror (err));
        exit (1);
    }

    snd_pcm_hw_params_free (hw_params);

    if ((err = snd_pcm_prepare (capture_handle)) < 0) {
        fprintf (stderr, "cannot prepare audio interface for use (%s)\n", snd_strerror (err));
        exit (1);
    }

    // 开始录音
    while (1) {
        // 生成文件名
        time_t t = time(NULL);
        struct tm *tm = localtime(&t);
        sprintf(filename, "%s%d%02d%02d_%02d%02d%02d.wav", RECORD_PATH, 
                tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, 
                tm->tm_hour, tm->tm_min, tm->tm_sec);

        // 打开文件
        FILE *fp = fopen(filename, "wb");
        if (fp == NULL) {
            fprintf(stderr, "cannot open file %s\n", filename);
            exit(1);
        }

        // 录音
        short buf[CHANNELS * rate * RECORD_TIME];
        int frames = snd_pcm_readi(capture_handle, buf, CHANNELS * rate * RECORD_TIME);
        if (frames != CHANNELS * rate * RECORD_TIME) { // 检查是否丢包
            lost_count += CHANNELS * rate * RECORD_TIME - frames;
        }
        total_count += CHANNELS * rate * RECORD_TIME;

        // 写入文件
        fwrite(buf, sizeof(short), CHANNELS * rate * RECORD_TIME, fp);

        // 关闭文件
        fclose(fp);

        // 打印统计信息
        printf("file %s recorded, lost %d frames, total %d frames\n", filename, lost_count, total_count);

        // 文件计数器加1
        file_count++;

        // 休眠1秒
        sleep(1);
    }

    snd_pcm_close (capture_handle);

    return 0;
}

这个程序使用ALSA库来进行音频录制，支持双通道、8000Hz采样率，并且可以按照要求进行文件切换和丢包统计。你可以将这个程序保存为一个C文件，然后使用gcc编译器进行编译，生成可执行文件。编译命令如下：

gcc -o recorder recorder.c -lasound

然后，你可以在命令行中运行这个可执行文件，开始录制USB音频。