View wav file

That is the order in which the bytes will be retrieved in the data array. Each machine has its own way of ordering numerical data. No extra steps will be required for machines that store it with the little-endian ordering, as the data will be retrieved in the same ordering. With the data types that will be used to store the data defined, we can begin to retrieve the data. The only difference is that the data is stored inside a union.

Once the bytes have been read from the header, the struct type defined above will take care of organizing them as required. We can access them directly. Now that the most relevant parts of the implementation have been explained, we can present the results for an example wave file.

Reading the header of a wav file Published by One Step! Code on January 23, An example of the contents of the header for a wave file can be found below. Allocating header bytes The bytes stored in the wave file header will be read byte-by-byte and stored in an array. Numerical data types sizes The size of the numerical data fields in the header is either 2 or 4 bytes long. If it's a licensing issue, look for an LGPL or similar license.

If not, well,. NET is built on libraries so that you don't have to code everything yourself. Install NuGet, get NAudio or another audio library , and don't reinvent the wheel :. Why is reinventing the wheel such a bad thing? Not only will you feel good for working it out yourself, you will also learn so much in the process.

If you're coding for fun and have no time restraints then I'd say definitely reinvent the wheel! Add a comment. Active Oldest Votes. Improve this answer. Dan W Dan W 3, 7 7 gold badges 37 37 silver badges 64 64 bronze badges.

Someone correct me if i am wrong. MartinBerger Bytes are auto-promoted to int in most cases, including shifting. Didn't know that, thanks.

MartinBerger yes, see msdn. MartinBerger FYI there is no such thing as "platform specific int". C 's int which maps to the Int32 struct in. Show 4 more comments. AreEqual 16, reader. Read buffer, 0, buffer. Mark Heath Mark Heath At time of writing nobody has addressed bit or bit encoded WAVs. Open filename,FileMode. ReadInt16 ; reader. Log " Also I should be using Float32 and Float64 rather than float and double.

I think float and double are right. C does not have Float32 and Float64 rather System. You can toggle between a linear or logarithmic frequency scale by ticking or unticking the logarithmic frequency checkbox. In many ways, this demo is similar to the Virtual Oscilloscope demo , but there is a crucial and very important difference.

In the oscilloscope demo, the plot shows the displacement of an audio signal versus the time, which is called the time-domain signal. This demo shows the signal represented in a different way: the frequency domain.

The frequency spectrum is generated by applying a Fourier transform to the time-domain signal. Each of these has unique and interesting patterns for you to observe. Additionally, you can upload your own audio files. To view the spectrogram, choose your sound input, then click the play button and the graph will appear on the screen, moving from right to left.