读取wav文件的文件头
时间: 2023-10-23 17:08:48 浏览: 54
可以使用Python中的wave模块来读取.wav文件的文件头信息,示例代码如下:
```python
import wave
with wave.open('audio.wav', 'rb') as wav_file:
# 获取所有的文件头信息
file_info = wav_file.getparams()
print(file_info)
```
其中参数`'audio.wav'`是.wav文件的路径。执行上述代码,即可输出.wav文件的文件头信息。
相关问题
c语言读取wav文件的文件头
可以使用以下代码读取wav文件的文件头:
```
#include <stdio.h>
typedef struct {
char chunkID[4];
int chunkSize;
char format[4];
char subchunk1ID[4];
int subchunk1Size;
short audioFormat;
short numChannels;
int sampleRate;
int byteRate;
short blockAlign;
short bitsPerSample;
char subchunk2ID[4];
int subchunk2Size;
} WavHeader;
int main() {
FILE *fp;
WavHeader header;
fp = fopen("test.wav", "rb");
if (fp == NULL) {
printf("Error opening file\n");
return -1;
}
fread(&header, sizeof(header), 1, fp);
printf("ChunkID: %c%c%c%c\n", header.chunkID[0], header.chunkID[1], header.chunkID[2], header.chunkID[3]);
printf("ChunkSize: %d\n", header.chunkSize);
printf("Format: %c%c%c%c\n", header.format[0], header.format[1], header.format[2], header.format[3]);
printf("Subchunk1ID: %c%c%c%c\n", header.subchunk1ID[0], header.subchunk1ID[1], header.subchunk1ID[2], header.subchunk1ID[3]);
printf("Subchunk1Size: %d\n", header.subchunk1Size);
printf("AudioFormat: %d\n", header.audioFormat);
printf("NumChannels: %d\n", header.numChannels);
printf("SampleRate: %d\n", header.sampleRate);
printf("ByteRate: %d\n", header.byteRate);
printf("BlockAlign: %d\n", header.blockAlign);
printf("BitsPerSample: %d\n", header.bitsPerSample);
printf("Subchunk2ID: %c%c%c%c\n", header.subchunk2ID[0], header.subchunk2ID[1], header.subchunk2ID[2], header.subchunk2ID[3]);
printf("Subchunk2Size: %d\n", header.subchunk2Size);
fclose(fp);
return 0;
}
```
linux c语言读取wav文件的文件头
以下是读取wav文件头的C代码示例:
```c
#include <stdio.h>
#include <stdint.h>
typedef struct {
char chunk_id[4];
uint32_t chunk_size;
char format[4];
} riff_header_t;
typedef struct {
char subchunk1_id[4];
uint32_t subchunk1_size;
uint16_t audio_format;
uint16_t num_channels;
uint32_t sample_rate;
uint32_t byte_rate;
uint16_t block_align;
uint16_t bits_per_sample;
} fmt_chunk_t;
typedef struct {
char subchunk2_id[4];
uint32_t subchunk2_size;
} data_chunk_t;
int main(int argc, char** argv)
{
if (argc < 2) {
printf("Usage: %s <wav_file>\n", argv[0]);
return 1;
}
FILE* fp = fopen(argv[1], "rb");
if (!fp) {
printf("Failed to open file %s\n", argv[1]);
return 1;
}
// Read RIFF header
riff_header_t riff_header;
fread(&riff_header, sizeof(riff_header), 1, fp);
// Make sure it's a WAV file
if (strncmp(riff_header.chunk_id, "RIFF", 4) ||
strncmp(riff_header.format, "WAVE", 4)) {
printf("%s is not a WAV file\n", argv[1]);
fclose(fp);
return 1;
}
// Read fmt chunk
fmt_chunk_t fmt_chunk;
fread(&fmt_chunk, sizeof(fmt_chunk), 1, fp);
// Make sure it's a PCM file
if (fmt_chunk.audio_format != 1) {
printf("%s is not a PCM file\n", argv[1]);
fclose(fp);
return 1;
}
// Read data chunk
data_chunk_t data_chunk;
fread(&data_chunk, sizeof(data_chunk), 1, fp);
// Print information
printf("Channels: %d\n", fmt_chunk.num_channels);
printf("Sample rate: %d\n", fmt_chunk.sample_rate);
printf("Bits per sample: %d\n", fmt_chunk.bits_per_sample);
printf("Data size: %d\n", data_chunk.subchunk2_size);
fclose(fp);
return 0;
}
```
这个示例读取了一个WAV文件的文件头,并打印了一些信息,如通道数、采样率、每个样本的位数和数据大小。请注意,此代码仅适用于标准的PCM WAV文件。如果您要处理其他类型的WAV文件,请根据需要修改代码。
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