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error in reading a wav file with C++

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问题 I have a .wav file and I want to read it in C++. I have done some research on the RIFF file header and wrote a code to load it. #include <iostream> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> using namespace std; #define BUFFER_LEN 4096 int main(int argc,char * argv[]) { // Buffers etc.. char ChunkID[4], Format[4], Subchunk1ID[4],Subchunk2ID[4]; int ChunkSize,Subchunk1Size, SampleRate, ByteRate,Subchunk2Size; short AudioFormat, NumChannels, BlockAlign,

Failed to open file file.wav as a WAV due to: file does not start with RIFF id

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问题 I am getting this error when trying to open a RIFF file (which as I understand it is a type of WAV) in python. Failed to open file file.wav as a WAV due to: file does not start with RIFF id When I inspect it with various tools which leads me to believe that it is really a WAV / RIFF file. $ file file.wav file.wav: MBWF/RF64 audio, stereo 96000 Hz $ file -i file.wav file.wav: audio/x-wav; charset=binary $ mediainfo file.wav General Complete name : file.wav Format : Wave Format profile : RF64

Failed to open file file.wav as a WAV due to: file does not start with RIFF id

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I am getting this error when trying to open a RIFF file (which as I understand it is a type of WAV) in python. Failed to open file file.wav as a WAV due to: file does not start with RIFF id When I inspect it with various tools which leads me to believe that it is really a WAV / RIFF file. $ file file.wav file.wav: MBWF/RF64 audio, stereo 96000 Hz $ file -i file.wav file.wav: audio/x-wav; charset=binary $ mediainfo file.wav General Complete name : file.wav Format : Wave Format profile : RF64 File size : 4.10 GiB Duration : 2h 7mn Overall bit rate mode : Constant Overall bit rate : 4 608 Kbps

How to extract frequency out of WAV sample data?

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问题 I'm developing an application in c to read simple PCM WAV files. My question is, how should I interpret the samples from the data chunk, so that I can extract the sample's frequency? Given a WAV example, how can the original data represent frequencies. E.g. this data chunk, 24 17 1e f3, for stereo, 16 bits, the left channel sample is, 0x1724 = 5924d, means 5924Hz ? How can that be, for samples that are signed or frequencies that humans can´t hear? 回答1: Your assumption is incorrect. The sample

How to extract frequency out of WAV sample data?

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I'm developing an application in c to read simple PCM WAV files. My question is, how should I interpret the samples from the data chunk, so that I can extract the sample's frequency? Given a WAV example, how can the original data represent frequencies. E.g. this data chunk, 24 17 1e f3, for stereo, 16 bits, the left channel sample is, 0x1724 = 5924d, means 5924Hz ? How can that be, for samples that are signed or frequencies that humans can´t hear? AShelly Your assumption is incorrect. The sample data is simply a digital representation of the actual sound wave. The numbers represent wave

Reading writing WAV/RIFF Tags

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问题 I'm writing a simple audio recording utility which I want also to be able to tag the resulting files with meta data. It's pretty easy to find libraries to tag MP3 files with ID3 tags, but I'm more interested in lossless codecs like WAV and possibly FLAC. As I understand it WAVE files are really a subset of the RIFF file type which can contain both waveform "chunks" and metadata "chunks". Can anyone point me in the direction of libraries, specifications, or sample projects that would help me