Home Audio Editor

Home Audio Editor Tutorial - How To Use Home Audio Editor




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Audio/Sound/MP3 Editor: Editing Basics

If you have never used an audio editor on the PC before, Home Audio Editor is a great choice to start with. With its lightening speed and unmatched visual representation, Home Audio Editor will get you up to speed in no time. Home Audio Editor's Help File gives a good introduction for new users. We recommend downloading the FREE evaluation version, and reading through the Getting Started section of the help file (which is launched automatically when you first run Home Audio Editor).

Sound Basics
Sound is simply a variation in air pressure. Analog devices record or reproduce this by attempting to mimic the air pressure variations. A loudspeaker, for example, modifies the pressure of the surrounding air by moving a cone in and out of its shell. Similarly, a microphone picks up these variations in air pressure. Its diaphram (like the cone in the loudspeaker) moves with the pressure changes, and the pickup detects the changes and converts them to an electrical signal.

Digital audio goes a step further, by quantifying these changes. Many times a second, the current position is recorded as a number. The frequency at which this takes place is called the Sampling Frequency, or Sample Rate. By storing numbers instead of arbitrary magnetic positions, digital audio is able to more accurately reproduce the original sound.

Each sample is represented by a number corresponding to the level of the audio at that point. A Compact Disc holds digitized audio that was sampled 44,100 times per second. Each sample is represented as a 16-Bit number, giving it 65,536 possible levels for each sample. The number of bits used to store each sample is referred to as the Bit Resolution.

PC Sound Editing
Sound editing on the PC has been around for quite a while. As PCs become faster and less expensive, sound editing becomes easier and more practical.

Operations that would take hours a few short years ago can be accomplished in mere seconds these days. Home Audio Editor expands on that, and attempts to be faster at most things than most other editors.

Wave-form Display
The most basic concept in audio editing is the Wave-Form Display. This is basically a visual representation of the sound you are working with. This may not seem to make sense at first -- you certainly can't "see" sound -- but it will become second nature before you know it. It is a good idea to familiarize yourself with the concept by experimenting on some sound files, and getting a feel for how each sound "looks" on your screen.

Visual Representation
Imagine if we draw out these numbers on your computer screen. Louder sounds will look larger than smaller sounds. Imagine even further if you could "zoom in" on the sound -- viewing more detail, and less data. This is the heart of a sound editing application -- the ability to show the audio in a visual manner that makes sense to the user.

Waveform Display: 64:1 Zoom
Waveform Display @ 64:1 Zoom


Home Audio Editor attempts to make the wave-form look as true as possible. Lots of coding time went behind our wave-form display technologies, and we hope to have achieved a really nice effect. Other editors offer a very limited view -- some require specific zoom ratios, or don't allow as much detail. Home Audio Editor lets you zoom to any integral zoom ratio.

Waveform Display: 1:1 Zoom
Waveform Display @ 1:1 Zoom


A one to one, or 1:1, zoom ratio means that each pixel represents exactly one audio sample. This way you can see every audio sample on its own. Zooming out increases the number of samples that make up each pixel, allowing you to view more data, with less detail.

Trying it Out
The best way to learn to understand a wave-form display is to try it out. If you have some sound files, open one up in Home Audio Editor. Zoom in and out on the wave-form, and play the audio back using the audio controls toward the bottom of the window.

Once you get the feel for the visual representation, the rest is quite easy!

Actually Editing Sound
Once you understand the idea of visualizing your audio, you can do things like:
  • Select a portion of audio with your mouse (just like you might do with text)
  • Perform an operation on the selection
  • Delete the selection
  • Copy, Cut, and Paste the selection
Adding to the standard Copy/Paste, sound editors usually have an additional Paste mode: Paste Mix. This Mixes the sound on the clipboard with the destination sound.

Home Audio Editor lets you "nudge" the selection in the Paste Mix dialog, so you can preview and adjust until you're pasting exactly where you wanted to: where it sounds the best. You can also adjust the volume level of the pasted audio.

Getting Started
You can download a FREE Evaulation version of Home Audio Editor by visiting our Downloads page. While the Save feature is disabled in the Evaluation, you can try out all of the above concepts. If you like what you see, you can Buy Home Audio Editor for only $29.95.

Once you get the hang of sound editing on the PC, you can read about Home Audio Editor's features to see what Home Audio Editor offers that other editors don't.


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