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Hi, welcome back and this video, I'll show you how to load all the files in Python and how to process

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them with processing, I mean, things like reversing the old you, slicing the audio, merging different

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audio tracks, increasing the volume of audio, etc. So all these you can do via Python.

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So I have this empty ripple here with an empty main that's pure file.

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But I do have this beat that wave file, which you can probably open its own ripple.

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If not, click here and download it just to listen what this audio is about, but I can play it on a

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ripple.

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It's a three seconds audio.

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So first, let's get some basic info about this audio file and to do that with Python.

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First, we have to load these audio file as sort of an audio object type in Python.

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And you can work with audio objects in Python using the P y dub library, which I'm going to install

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if you have forked this ripple.

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This should be installed by default.

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So that package?

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And once I stole that package, I can import from P y dub import all segment.

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This is a central class that allows us to create all the objects.

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So to create an audio object now you can see audio equals two.

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So a variable or you can just say original to denote the original audio object because we're going to

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create other old use based on this original object.

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So we're going to create a reverse.

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I'll do it.

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We're going to create another all day, which is only the first two seconds of these three second long

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audio and so on.

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So the original is audio segment, and you don't do that as you may expect, but use.

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A methods, depending on what type of all your file formats you have, in our case, we have a W a V,

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so I'm going to use from W a v a method of this class.

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And if you give the path to the file which is beat that w a V that should create this original all the

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object type we can print the type of this original and also print original just to see what we have.

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Run.

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All right.

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So original, it's not defines.

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Yeah, I got a typo here.

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Sorry.

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Run again.

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And so this is the type this one here.

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So it's in all these segments.

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So this method outputs all this segment instances, and this is how the object looks like.

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But that's boring.

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So let's do some fun now with audio.

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So from the original, we could create another object and hold the object.

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Reverse, for example, equals to original dot versus a methods of all the object types.

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So reverse.

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And this audio doesn't get any arguments and required arguments.

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So this is enough.

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But how do we see?

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How do we listen to this reverse audio?

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Well, you can refer to that variable and apply the export methods and then specify a path to the file.

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So in my case, I'm writing reverse that w a v run and a new file has been created here on my directory.

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If I click that play.

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If you have a good year, then you'll be able to distinguish the difference, you see the original one.

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Yeah, so they are different right now.

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Let's talk for a while and see where did I get these methods and that methods?

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Well, for a complete list of methods, you can apply to this.

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All these segments object instance, you can do print the original run.

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And so these are the methods.

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So of course, we cannot go through all of them, but we're going to go through the most important ones

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that you will be using.

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So reverse we tried reverse.

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If you go to our, you see these are in alphabetical order, you see reverse here and we also use export.

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This one in here.

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There are some things, though, which are not methods.

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For example, if you want to extract only the first two seconds of the original audio file, the way

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to do that is so let me comment that out by using least slicing syntax.

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So let's say first to another variable, which will hold the two seconds all your object first to its

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original from the second zero two.

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You don't write two, but you write 2000 because this expects milliseconds.

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You can also omits the zero.

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That's not necessary.

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I prefer to keep it.

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It makes the code more readable and first to that exports to save all the objects to a file on disk.

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Let's say first to that way file run.

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And this is a file generated.

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You see, it's two seconds long.

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The original one was three seconds.

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So.

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Right now, if you want to see the length of and all the objects you can use, the Python Lend function

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so original you run and you'll see it's something like three thousand five hundred sixty seven milliseconds.

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So which means it's around 3.5, six, seven seconds here on Ripple, it shows.

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S and No.

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S an integer, so three seconds, but that's all we're Apple shows.

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It's on the audio player to merge two audio files.

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You can do this.

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Merged equals to original plus.

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Reversed, so we are merging that to that.

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In other words, we are a pending reversed two original so original will be the first reverse will come

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after that.

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Let's export it to a file on disk and to listen to it.

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It's a merged.

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You see, it's seven seconds now because each of those audio files were 3.5 seconds each.

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Right, sounds good.

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You could also add an empty a silence between these two.

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To do that, you could do.

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I'll just segment that's silent.

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Plus that silent for, let's say, a thousand milliseconds, so one second, let's override the existing

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file, so run.

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And listen to merge that wave.

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So you see, it's eight seconds now.

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One second silence, then starts again.

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One more time.

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Right.

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So that is how you keep adding all your files, appending audio files to other audio files.

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You can also use a multiplication operator.

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So let's say you want two original tracks before.

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So one after another and then a silence and then the reverse all do.

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So run that.

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No, it's going to be something like 11 seconds.

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Yeah, it's 11 seconds.

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I'm not a music expert, but this is sounding good to me so far.

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And lastly, I would like to show you how to increase the volume of your audio.

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Let's say we want the reversed port to be 15 more decibels.

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To do that, what we can do is, we can say, reversed equals to reverse.

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So the original plus 15 as intuitive as that, so now reversed is has a higher volume.

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And then we add reverse here.

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So reverse at this point will have a higher volume.

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Therefore, we ready to execute this and listen to the merged file.

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Yeah, so I think you were able to listen to tell that the volume of the lost part was higher.

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And that is the complete code.

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Let's have some more fun with music of the falls in the next video.

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Thank you.