使用alsa库写一个音频记录程序，需要按指定路径生成日期文件夹，按当前时间创建文件名，最后再根据，然后以10秒为一个单位时间保存成wav标志文件，可以使用通用播放器播放

好的，我可以帮你解答这个问题。

首先，你需要安装alsa库。你可以在终端中输入以下命令：

sudo apt-get install libasound2-dev

接下来，你需要编写一个C程序来记录音频。以下是一个示例程序，可以按照你的要求生成日期文件夹，创建文件名，并且每10秒保存一个wav文件：

#include <alsa/asoundlib.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <string.h>

#define SAMPLE_RATE 44100
#define SAMPLE_WIDTH 16
#define CHANNELS 2
#define PERIOD_SIZE 1024
#define BUFFER_SIZE (PERIOD_SIZE * 2 * SAMPLE_WIDTH / 8 * CHANNELS)

void create_directory(const char *path) {
    struct stat st = {0};

    if (stat(path, &st) == -1) {
        mkdir(path, 0700);
    }
}

char *get_time_string() {
    char *time_str = malloc(sizeof(char) * 20);
    time_t now = time(NULL);
    strftime(time_str, 20, "%Y%m%d_%H%M%S", localtime(&now));
    return time_str;
}

int main(int argc, char *argv[]) {
    snd_pcm_t *handle;
    snd_pcm_hw_params_t *params;
    snd_pcm_uframes_t frames;
    char *buffer = malloc(BUFFER_SIZE);

    snd_pcm_hw_params_alloca(&params);

    // Open the default PCM device
    if (snd_pcm_open(&handle, "default", SND_PCM_STREAM_CAPTURE, 0) < 0) {
        printf("Error opening PCM device!\n");
        return -1;
    }

    // Set hardware parameters
    if (snd_pcm_hw_params_any(handle, params) < 0) {
        printf("Error setting hardware parameters!\n");
        return -1;
    }

    if (snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) {
        printf("Error setting access mode!\n");
        return -1;
    }

    if (snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE) < 0) {
        printf("Error setting sample format!\n");
        return -1;
    }

    if (snd_pcm_hw_params_set_channels(handle, params, CHANNELS) < 0) {
        printf("Error setting channel count!\n");
        return -1;
    }

    unsigned int sample_rate = SAMPLE_RATE;
    if (snd_pcm_hw_params_set_rate_near(handle, params, &sample_rate, 0) < 0) {
        printf("Error setting sample rate!\n");
        return -1;
    }

    if (snd_pcm_hw_params_set_period_size_near(handle, params, &frames, 0) < 0) {
        printf("Error setting period size!\n");
        return -1;
    }

    if (snd_pcm_hw_params(handle, params) < 0) {
        printf("Error setting hardware parameters!\n");
        return -1;
    }

    // Start capturing audio
    create_directory("recordings");
    char *date_str = get_time_string();
    char *dir_path = malloc(sizeof(char) * (strlen("recordings/") + strlen(date_str) + 1));
    strcpy(dir_path, "recordings/");
    strcat(dir_path, date_str);
    create_directory(dir_path);

    int i = 0;
    while (1) {
        char *file_name = malloc(sizeof(char) * (strlen(dir_path) + 25));
        sprintf(file_name, "%s/%s_%04d.wav", dir_path, date_str, i++);
        FILE *file = fopen(file_name, "wb");
        if (file == NULL) {
            printf("Error creating file %s!\n", file_name);
            return -1;
        }

        fwrite("RIFF", 1, 4, file);
        unsigned int file_size = 0;
        fwrite(&file_size, 1, 4, file);
        fwrite("WAVE", 1, 4, file);

        fwrite("fmt ", 1, 4, file);
        unsigned int fmt_size = 16;
        fwrite(&fmt_size, 1, 4, file);

        unsigned short audio_format = 1;
        fwrite(&audio_format, 1, 2, file);

        unsigned short num_channels = CHANNELS;
        fwrite(&num_channels, 1, 2, file);

        unsigned int sample_rate = SAMPLE_RATE;
        fwrite(&sample_rate, 1, 4, file);

        unsigned int byte_rate = SAMPLE_RATE * CHANNELS * SAMPLE_WIDTH / 8;
        fwrite(&byte_rate, 1, 4, file);

        unsigned short block_align = CHANNELS * SAMPLE_WIDTH / 8;
        fwrite(&block_align, 1, 2, file);

        unsigned short bits_per_sample = SAMPLE_WIDTH;
        fwrite(&bits_per_sample, 1, 2, file);

        fwrite("data", 1, 4, file);
        unsigned int data_size = 0;
        fwrite(&data_size, 1, 4, file);

        snd_pcm_prepare(handle);

        int frames_read = 0;
        while (frames_read < PERIOD_SIZE) {
            int frames_to_read = PERIOD_SIZE - frames_read;
            int frames_read_now = snd_pcm_readi(handle, buffer + frames_read * CHANNELS * SAMPLE_WIDTH / 8, frames_to_read);
            if (frames_read_now < 0) {
                printf("Error reading from PCM device!\n");
                fclose(file);
                return -1;
            }
            frames_read += frames_read_now;
        }

        fwrite(buffer, 1, BUFFER_SIZE, file);

        data_size = frames_read * CHANNELS * SAMPLE_WIDTH / 8;
        file_size = data_size + 36;
        fseek(file, 4, SEEK_SET);
        fwrite(&file_size, 1, 4, file);
        fseek(file, 40, SEEK_SET);
        fwrite(&data_size, 1, 4, file);

        fclose(file);

        usleep(10000000);  // Wait 10 seconds
    }

    free(buffer);
    snd_pcm_close(handle);

    return 0;
}

这个程序使用了alsa库来捕获音频，并且以wav格式保存到指定的文件夹中。你需要根据你的需求修改程序中的路径和文件名格式。

你可以使用以下命令编译程序：

gcc -o record record.c -lasound

然后你可以运行程序：

./record

程序将会一直运行，每10秒保存一个wav文件。你可以使用通用播放器来播放这些文件。

希望这个回答对你有所帮助！