There is audio file. Where few "words" with different time between them. I need to make as many .wav files as "words" in the file. Audio file is very clear, there is no noise, so it must be very easy to find the "words". Any ideas how to make it with C#? Maybe somebody knows any libraries?
Please check an example of waveform of the file:
NAudio is good. You'll be able to read the WAV header so you know what format was used to store the file. Then you can just scan it and grab the regions where the entropy is higher.
https://naudio.codeplex.com/releases/view/612263
Related
What I am wanting to do is have my program listen to a wav file that consists of highs and low and be able to determine what one is what
(basically converting the highs and lows in the wav files to 1's and 0's)
After some googling I haven't found anything that would be able to listen to an audio source or wav file directly to do this so I am currently stumped on what to do next...
I recommand you to take a look at the NAudio library which allow you to read a WAV file very easily.
Then you will probably need to detect the "highs and lows" yourself by analysing the databytes extracted from your WAV file and create the output file you are looking for also with NAudio (this is basically analysing and filling byte arrays).
This is a usefull article that can help you to understand how to do this :
Audio Formats - Mark Heath
And some other threads directly on stack : How to read the data in a wav file to an array
I got some short .wav files and after i get sequence how it should be played in time I need to "render" a one wav file which will contain that .wav files. I know I can append it but the problem is that some wav files should be played at one time, and also it need to be in rhythm (exact spaces).
How?
You will need to use some libraries like ffmpeg or SoX to do this.
Reference: http://ffmpeg.org, http://sox.sourceforge.net
I have two audio files that I need to merge on top of each other. Each mp3 is one side of a conversation, so in theory when I merge these two files together I should hear a complete conversation. Has anybody ever accomplished this in .Net?
I've seen examples of people concatenating audio files together, but I repeat, I don't want to do that. I want to merge/mix two audio tracks so the are on the same audio file.
Any help would be appreciated.
I am looking at the NAudio library. Actual code answers would be very helpful as well.
This should get you started with nAudio.
Convert the mp3's to wav32*
Mix the 2 wav (check this code)
Convert the mixed wav to mp3*
*the samples/discussion at nAudio shows how to convert between formats
I ended up using Sox to do the merge.
http://sox.sourceforge.net/
sox.exe -m fileone.mp3 filetwo.mp3 output.mp3
Sox doesn't have support for mp3s so you need to download this version which has those references compiled into the executable. Additionally you can search for the dll and the latest should pick them up.
http://www.codeproject.com/KB/aspnet/Compiling_SOX_with_Lame.aspx
Use a Process class to call this from .Net.
I am playing a .wav file stored in my computer and I am going to record the speech of an user into a .wav file. For recording i'm using this link.
http://www.c-sharpcorner.com/UploadFile/GemingLeader/696/
Now I want to compare these two .wav files. Can any one help me?
Thanks in advance.
look at the SpeechSDK5.1 http://www.microsoft.com/downloads/en/details.aspx?FamilyId=5E86EC97-40A7-453F-B0EE-6583171B4530&displaylang=en
If you look at the following: http://www.codeproject.com/KB/audio-video/SoundCatcher.aspx you can notice the Spectrogram, basically if the two spectrograms are exact same thing, then the audio is exact same thing. You need to capture the spectrogram data and use some sort of comparing algorithm to compare both data.
How can I break a large mp3 file into one or more mp3 files, and still have each part playable in a media player?
It's probably not going to be super easy to break an mp3 file into separate playable mp3 files. There is header information in the mp3 file that you will need to include in all of the split-up files. You might need to get a book or look for a file spec on mp3s, so you know what you're dealing with.
You might be best-off looking for a library that can deal with mp3 files, rather than trying to do it yourself with a FileStream.
Actually, breaking a MP3 file into seperate playable MP3 files is quite easy. A MP3 file consists of a lot of individual frames of iirc 1500bytes, where each has it's own header. Invalid data will be ignored by the player.
But, it would be a lot better if you where to split your files on frame boundaries, creating correct mp3 files. More info on the frame header can be found on this site: http://www.mp3-tech.org/programmer/frame_header.html
Please also consider the possibility that the music is prepended and/or appended with various meta tags, like ID3, APE and lyrics.