Welcome to AVS Audio Editor, powerful, full-featured and easy to use digital audio editor!

AVS Audio Editor will be of interest to professionals and amateurs, it is very easy to use, it lets you perform a lot of operations without any difficulties. Once you get started you will be surprised to see the variety of possibilities this program offers to you.

So what are the main functions of AVS Audio Editor? Suppose you have recorded some audio data, now you can do whatever you want with it: cut it, copy, paste, move - the same operations that you can do with the text in a word processor. In case you make a mistake, press the Undo button, and try again.

Friendly interface allows you to perform lots of different operations in an easy way. You can use it to record your own music, voice or other audio material, edit it, mix it with other audio or musical parts, add various effects to it, and master it so that you can burn it onto a CD, post it on the World Wide Web, or e-mail it. AVS Audio Editor supports all major audio file formats.

AVS Audio Editor has a great variety of audio effects and tools: Delay, Flanger, Reverb, Phaser, Amplify and lots of others.

AVS Audio Editor main window comprises the following parts:

• Main Menu

• Top Toolbar

• Effects and Filters Panel

• Waveform Editing Space

• Bottom Toolbar

• Status Bar

AVS Audio Editor can be operated with the help of Main Menu elements. Flexible system of menu elements is a perfect tool for navigating and operating the application, controlling all the processes.

The Main Menu has the following structure:

The Top Toolbar consists of the following buttons:

In the table below you will find the functions you can perform with the help of each button:

Button	Name	Description
	New...	Use it to create a new audio file.
	Open	Use it to open an existing audio file. AVS Audio Editor supports a wide variety of data types. When you load a file for editing, AVS Audio Editor converts the audio file type to its own internal temporary file type for faster editing and better handling of larger file sizes.
	Save	Use it to save the active audio file with its current file name and location.
	Save as	Use it to save the active audio file with a different file name and/or location, in a different file format.
	Cut	Use it to remove the selection from the active file and place it to the program internal clipboard.
	Copy	Use it to copy the selection into the program internal clipboard. It is used when you work with one file within one copy of AVS Audio Editor.
	Paste	Use it to insert the contents of the internal clipboard at the insertion point or to replace any selection.
	Paste mix	Use it to insert the contents of the internal clipboard at the insertion point mixing the audio tracks.
	Delete	Use it to remove the current selection. The deleted portion is not copied to the clipboard, and can only be retrieved through Undo.
	Trim	Use it to delete everything except the selected portion (the exact opposite of Delete selection).
	Undo	Use it to reverse the last command, such as deletion, transformation, etc. If this option is not available, it means there is no action to undo. AVS Audio Editor allows virtually unlimited (limited only by hard drive space) levels of Undo.
	Redo	Use it to repeat your last command or action.
	Record	Use it to start recording from the device selected in the Configure... item of the Main Menu.

Audio Player and Zooming Toolbar consists of the following buttons:

In the table below you will find the functions you can perform with the help of each button:

Button	Name	Description
	Play	Starts playback of the current selection, or of the current audio file from either the left edge of the selection, or from the beginning of the file, to either the right edge of the selection or to the end of the file.
	Play Loop	Plays the current audio file or selection repeatedly, looping it until the Stop button is pressed.
	Play to End	Starts playback of the current selection, or of the current audio file from either the left edge of the selection, or from the beginning of the file, to the end of the file.
	Stop	Stops playback.
	Pause	Pauses playback.
	Vertical Zoom In	Increases the vertical resolution scale of the waveform and Amplitude Ruler.
	Zoom In	Zooms in on the center of the current audio file window. After zooming, use the Time Ruler to scroll to the desired location.
	Zoom Out	Zooms out from the current location.
	Full Zoom	Zooms all the way out to fit the entire waveform or session in the display window.
	Vertical Zoom Out	Decreases the vertical resolution scale of the waveform and Amplitude Ruler.

Current Position Field displays the current position of the active window cursor:

Time Display consists of 6 fields:

These fields display start, end, and length information for the visible portion of the current waveform or session, as well as for the currently selected range. The top row of fields shows the selection time, and the bottom row the viewing range.

Status Bar displays information relating to the file properties and free resources.

In the left part of the bar you can see information on the format of the current waveform or session, with sample rate, the number of channels and bitrate properties. In the right part of the bar you can see the duration of the audio.

To speed up your editing AVS Audio Editor offers you a wide variety of keyboard shortcuts. Use the table below to learn how to edit audio data in a fast and easy way.

Keyboard

Mouse Operations

Left click and drag a waveform to make a selection.

Double left-click a waveform to select the entire visible portion of the waveform (when zoomed in this does not select unseen areas which may be to the right or left).

Left-click anywhere in the waveform and you will change the position of the playback cursor.

With stereo or multichannel waveforms, use the Control key of the keyboard together with the mouse pointer (the cursor will acquire L or R letter - L_f, R_f, C_f, LFE, L_r and R_r for six channel audio) and left-click to enable only the necessary channel for editing (the disabled channels will gray-out), another left-click within the disabled channel will re-enable it.

Left-click (the mouse cursor should change to a hand) and drag the Display Range Bar to scroll forward or backward in time.

Click and drag on the Time Ruler to scroll horizontally.

Rest mouse over any toolbar button to get an explanation of the button's function.

Double-click title bar to Maximize/Restore.

Wheel mouse specific

Roll the mouse wheel forward to zoom in. Roll the mouse wheel backwards to zoom out.

You can change the format of the edited file when you save it. It can be done to reduce the size of the audio file, to change the number of the channels or to make it possible to playback the file using mobile devices, such as mobile phones, portable players, etc.

To change the file format and save it using this selected format, you can press the Save as... button of the Top Toolbar or select the Save as... item of the Main Menu. The following window will open:

Here you can select the output file format and specify the output file format parameters such as Sample rate (Frequency), Bitrate and the number of Channels.

Note, that some formats, such as AAC, M4A, WMA and WAV allow you to select more than two channels. You can set up to eight channels depending on your desires and the devices that will be used to playback the resulting audio files.

Please note that it is possible to specify Advanced MP3 parameters clicking the appropriate button. You can find the detailed information about these settings in the Appendix section. See also:

• Available MP3 Parameters Combinations
• Available MP2 Parameters Combinations

After you select all the parameters, click the Save button to accept the changes and save the audio file or Close to discard the changes and close this window.

Use the Horizontal Zoom buttons, that you can find on Zooming Toolbar at the bottom of the Main Window, to get more or less detailed view of the current waveform. You can zoom all the way down to the individual samples of a waveform, which are displayed as small squares on a line (the line itself represents an analog interpretation of the digital data).

In the table below you will find the description of each button:

The Vertical Zoom buttons increase or decrease the vertical scale in the Amplitude ruler. You can zoom way in to get fine detail on the amplitude of your waveform.

In the table below you will find the description of each button:

Button	Name	Description
	Vertical Zoom in	Increases the vertical resolution scale of the waveform and Amplitude Ruler.
	Vertical Zoom Out	Decreases the vertical resolution scale of the waveform and Amplitude Ruler.

Waveform Editing Space consists of four main parts:

• Waveform Display

• Display Range Bar

• Amplitude Ruler

• Time Ruler

Waveform Display

Waveform Display is the area where you view your audio material. There are many mouse operations available in the Waveform Display to select data:

• Left-click anywhere in the waveform and you will change the position of the playback cursor.

• With stereo or multichannel waveforms, use the Control key of the keyboard together with the mouse pointer (the cursor will acquire L or R letter - L_f, R_f, C_f, LFE, L_r and R_r for six channel audio) and left-click to enable only the necessary channel for editing (the disabled channels will gray-out), another left-click within the disabled channel will re-enable it.

• Left-click and drag in the waveform display to make a selection.

• Double left-click in the waveform display to select the entire visible portion of the waveform (when zoomed in this does not select unseen areas which may be to the right or left).

Display Range Bar

The Display Range Bar on the top of the Waveform Display window indicates which part of the entire waveform is currently being viewed in the Waveform Display. When zooming in or out, this bar will get smaller or larger, as the portion being viewed changes with respect to the entire waveform or session.

Left-click (the mouse cursor should change to a hand) and drag the bar to scroll forward or backward in time. As with dragging in the Time Ruler, the zoom level is retained, only the viewing range is altered.

	Amplitude Ruler Amplitude Ruler measures the relative volume of audio data. The ruler displays the volume of the audio in Decibels.
		Time Ruler Time Ruler shows the current location at any point in the waveform display. The time markings are subdivided into more detail when zoomed in, and less detail when zoomed out. Left-click (the mouse cursor should change to a hand) and drag the ruler to scroll forward or backward in time. As with dragging in the Display Range Bar, the zoom level is retained, only the viewing range is altered.

Amplify effect is used to increase or decrease the amplification of the sound in the media file. If you select a part of the file with the mouse, this effect will amplify or attenuate this exact part of the file. Otherwise the sound of the whole file will be amplified or diminished.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Amplify effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Chorus effect allows you to make your audio sound fuller. It can make a single instrument sound like there are actually several instruments being played. It adds some thickness to the sound, and can be described as 'lush' or 'rich'.

The Chorus effect is so named because it makes the recording of a vocal track sound like it was sung by two or more people singing in chorus. This is achieved by adding a single delayed signal (echo) to the original input.

The Chorus differs from the Flanger in only a couple of ways. One difference is the amount of delay that is used. The delay times in a Chorus are larger than in a Flanger. This longer delay doesn't produce the characteristic sweeping sound of the Flanger. The Chorus also differs from the Flanger in that there is generally no feedback used.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Chorus effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

Compressor effect is used to reduce the dynamic range of an audio signal. For example, compressors can be used to eliminate the variations in the peaks of an electric bass signal by clamping them to a constant level (thus providing an even, solid bass line.) Compressors can also be useful in compensating for the wide variations in the level of a signal produced by a singer who moves frequently or has an erratic dynamic range.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Compressor effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Delay effect allows you to create an echo effect of your audio track by replaying the sounds of the selected audio portion after a certain period of time. Applying of this filter can bring life to dull mixes, widen and fill out your instrument's sound. 

You can use this function to create single echoes, as well as a number of other effects. Delays of 35 milliseconds (ms) or more will be perceived as discrete echoes, while those falling within the 35-15 ms range can be used to create a simple chorus or flanging effect. (These effects will not be as effective as the actual Chorus or Flanger effects, as the delay settings will be fixed and will not change over time).

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Delay effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

Expander effect is used to expand the dynamic range of an audio signal. Expander boosts the high-level signals and attenuates low-level signals. If you select a part of the file with the mouse, this effect will be applied to this exact part of the file. Otherwise the sound of the whole file will be altered.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Expander effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

Use the Fade In effect to fade in the sound in the media file. If you select a part of the file with the mouse, this effect will fade in the sound of this exact part of the file. Otherwise the sound of the beginning of the file will be faded in.

Use the Fade Out effect to fade out the sound in the media file. If you select a part of the file with the mouse, this effect will fade out the sound of this exact part of the file. Otherwise the sound of the end of the file will be faded out.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Fade in or Fade out effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Flanger effect is one of the other elaborated audio effects that is created by mixing a signal with a slightly delayed copy of itself, where the length of the delay is constantly changing. With the Flanger filter you can "shape" the sound through controlling how much delayed signal is added to the original. Use it if you want to create the "whooshing" sound effect in some fragment of your audio track.

Flanger is a special case of the Chorus effect: it is created in the same way that Chorus is created. In days gone by, flanging used to be created by sound engineers who put their finger onto the tape reel's flange, thus slowing it down. Two identical recordings are played back simultaneously, and one is slowed down to give the flanging effect.

Flanger gives a "whooshing" sound, like the sound is pulsating. It is essentially an exaggerated Chorus.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Flanger effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

With the help of this function you can simply invert the samples, so that all positive offsets are negative and all negative offsets are positive. Inverting does not produce an audible effect, but it can be useful in lining up amplitude curves when creating loops, or pasting. On stereo waveforms, both channels are inverted.

If you select a part of the file with the mouse, this effect will be applied to this exact part of the file. Otherwise the sound of the whole file will be altered.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Invert effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Noise Remover effects lets the user attenuate the noise sound of a certain frequency based on the Fast Fourier Transformation. If you select a part of the file with the mouse, this effect will be applied to this exact part of the file. Otherwise the sound of the whole file will be altered.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Noise Remover effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

Use this effect to achieve the greatest amount of amplification that will not result in clipping. If you select a part of the file with the mouse, this effect will amplify the highlighted selection to the percentage of the maximum level. Otherwise the sound of the whole file will be normalized.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Normalize effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Notch filter cuts specified frequency from audio data. If you select a part of the file with the mouse, this effect will be applied to this exact part of the file. Otherwise the sound of the whole file will be affected.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Notch effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Phaser filter makes the selected portion of your audio thinner or fuller through mixing the automatically filtered and unfiltered audio signals. You can apply this filter to give a "synthesized" or electronic effect to natural sounds.

The Phaser achieves its distinctive sound by creating one or more notches in the frequency domain that eliminate sounds at the notch frequencies.

Phasing is very similar to flanging. If two signals that are identical, but out of phase, are added together, then the result is that they will cancel each other out. If, however, they are partially out of phase, then partial cancellations, and partial enhancements occur. This leads to the phasing effect.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Phaser effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Pitch Shift effect shifts the frequency spectrum of the input signal. It can be used to disguise a person's voice, or make the voice sound like that of the "chipmunks", through to "Darth Vader". It is also used to create harmony in lead passages, although it is an "unintelligent" harmonizer.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Pitch Shift effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Reverberation filter helps you apply the particular effect when the sound stops but the reflections continue, decreasing in amplitude, until they can no longer be heard.

You can use this function to set Reverb effect that is used to simulate acoustic space, and consists of both early reflections and echoes that are so closely spaced that they are perceived as a single fading sound. Reverb is different from the basic echo function in that the delays are not repeated at regularly spaced intervals. Reverb function can create a wide range of high-quality reverb effects.

It is the sound you hear in a room with hard surfaces where sound bounces around the room for a while after the initial sound stops. Reverb is used to simulate the acoustical effect of rooms and enclosed buildings. In a room, for instance, sound is reflected off the walls, the ceiling and the floor. The sound heard at any given time is the sum of the sound from the source, as well as the reflected sound. An impulse (such a hand clap) will decay exponentially.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Reverb effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

With the help of this function you can make a selection play backwards by reversing the order of its samples. It is useful for creating special effects.

If you select a part of the file with the mouse, this effect will applied to this exact part of the file. Otherwise the sound of the whole file will be changed.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Reverse effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

The Time Stretch effect allows to change the tempo, but keep the pitch the same throughout. If you select a part of the file with the mouse, this effect will change the tempo of this exact part of the file. Otherwise the tempo of the whole file will be changed.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Time Stretch effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

Vibrato equals to a cyclical changing of a certain frequency of the input signal. If you select a part of the file with the mouse, the Vibrato effect will be applied to this exact part of the file. Otherwise whole file will be changed.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the Vibrato effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.

WahWah is the sound of altering the resonance of musical notes to extend expressiveness that makes the audio sound just like that guitar sound so popular in the 1970's. This effect uses a moving bandpass filter to create its sound, sounding much like a human voice saying the syllable 'wah'.

The WahWah effect automatically adjusts the phase of the left and right channels when given a stereo recording, so that the effect seems to travel across the speakers.

To apply the effect you should do the following:

1. Add the audio file to the Waveform Editing Space.
2. Select a part of the file you would like to apply the effect to or leave it unselected to apply the effect to the whole file.
3. Click the WahWah effect button on the Effects and Filters Panel.
4. Adjust the effect parameters or select one of the available presets from the list. Note, that if you change the effect settings, you can save them as a preset to be able to use them afterwards.
5. Click the Preview button to make sure that the changes are correct.
6. Click the OK button to return to the audio file editing.