Audacity

Audacity 2.3.3 is a software for recording voice or music, editing tracks, mixing audio and also to clean up recording problems such as background noise .

Audacity default light-colored theme running on Windows 10

If you have ever used a microphone to record your voice using a computer, you can already record the noise along with your audio file. Fortunately, there is a way to fix this problem and it will not cost you a penny with Audacity.

The latest version of Audacity includes improvements to effects, interfaces, Nyquist and libflac updates. Some bugs have also been fixed to help the software run more smoothly.

Audacity dark theme running on Windows 10

Main features of Audacity audio editing software

Live recording:

• This software can record audio directly with a microphone or a combination set, or digitize audio recordings from cassettes or minidisc discs. Also, for some sound cards, Audacity can record live audio files.
• The Device Toolbar controls multiple input and output devices.
• Level meters adjust the volume before, during and after the recording process.
• Record audio via microphones, input devices, USB / Firewire devices and a few other devices.
• Record on Windows Vista computers and higher operating systems by selecting the Windows WASAPI host in the Device Toolbar and then selecting the loopback input device.
• Support Timer Record and Sound Activated Recording feature.
• Merge multiple songs to create special recordings.
• Select the Windows WDM-KS and Audio to Buffer hosts in the Recording Preferences to record audio with very low latency for Windows-supported devices.
• Recording at up to 192,000 Hz (only applicable when selecting the appropriate hard drive and host). 384,000 Hz speed is only compatible with high resolution devices (note that Windows DirectSound host is limited to 200,000 Hz)
• Record audio with 24 bit depth on Windows.
• Record multiple channels at the same time.

Export and import files:

• This software allows importing audio files, editing and combining with other recordings or new ones. Also, you can export your recordings in a variety of file formats.
• Export and import files in WAV, AIFF, AU, FLAC and Ogg Vorbis formats
• Import WAV or AIFF files on demand quickly.
• Import and export all file formats supported by libsndfile such as GSM 6.10, 32-bit and 64-bit float WAV and U / A-Law.
• Import MPEG audio file.
• Import raw audio file using the Import Raw command.
• Create a WAV or AIFF file that can be printed to a disc.
• Export an MP3 file.
• Import and export AC3, M4A / M4R (AAC) and WMA file formats.

Control sound quality:

• Support 16 bit, 24 bit, 32 bit audio.
• Convert rate and format with high quality conversion and mixing.
• Automatically convert a series of songs with different rate or format.

Edit file:

• Simple editing tools: cut, copy, paste and delete.
• Support the ability to go back to previous operations.
• Edit and coordinate multiple songs together.
• Lets run multiple clips in a song.
• Support for labeling the songs that Sync-Lock selectively syncs songs and labels.
• Support drawing toolbar to change individual points.
• Support Envelope toolbar to reduce or increase the volume.
• Automatically recover after program stops working abnormally.

Accessible ability:

• Songs and collections can be customized with the keyboard.
• Support multiple keystrokes.
• Supports JAWS, NVDA and other screen readers.

Effect:

• Change the high notes without affecting the tempo of the song (or vice versa).
• Eliminate strange noises in the song.
• Change the frequency with effects: Equalization, Bass and Treble, High / Low Pass and Notch Filter .
• Adjust the volume with effects: Compressor , Amplify , Normalize , Fade In / Fade Out and Adjustable Fade .
• Separate voices from matching stereo songs.
• Voiced for podcasts or DJ sets with Auto Duck effect.
• Other effects:
  • Echo
  • Paulstretch (extreme stretch)
  • Phaser
  • Reverb
  • Reverse
  • Truncate Silence
  • Wahwah
• Run sequences of effects in multiple songs using Batch Processing mode.

Plug-in:

• Supports LADSPA , Nyquist , VST and Audio Unit plug-ins
• Effects written in the Nyquist programming language can be easily edited in drafting software or users can write their own plug-ins.

Analyzer:

• The Spectrogram view to show frequency.
• Plot Spectrum command to analyze frequency in detail.
• Sample Data Export feature to export a file containing amplitude values ​​for each selected sample.
• Support additional VAMP analysis plug-in.

Audacity in Spectrogram view (with spectral option) on Windows 10

The installation of Audacity is quite quick and does not have any problems to note.The interface of Audacity is simple and easy to understand. It includes a menu bar, several buttons and a window for viewing waveform music files.

It may take some time to get used to Audacity at first, especially if you've never worked with similar software before. However, after getting used to it, everything will become very easy.

Audacity can record multiple channels at the same time with high sampling rate from micro, USB or Firewire devices. Simple audio editing operations can be done through the cut, copy, paste and delete features, while the mix can be made from multiple clips.

Audacity also has a rich list of effects including noise processing, equalization, bass, amplification, etc.In addition, Audacity can perform perfect audio analysis through an algorithm based on Fourier transformation. Frequency can be viewed via Spectrogram , while Plot Spectrum allows frequency analysis.

Update to the latest Audacity

Audacity 2.3.3

• Improve
  • The balancing effect is now divided into two types: Filter Curve and Graphic EQ.
  • The previous settings (using the management button) are now active.
  • There may be two points at the same frequency for incremental and descending steps.
  • 'What you hear is what you get' to export. Previously, the configuration of the solo button could lead to differences when exporting music.
  • Do not ignore the silence when exporting.
  • Set quality when exporting AAC / M4A.
  • Remove some confusing features, including: Nyquist Workbench, Vocal Remover (using Vocal Reduction), alias files on demand (instead of copying files), Normalize on Load (instead of normalizing when needed for export).
• Fixes

Audacity 2.3.3 has fixed more than 150 errors in the old version, including:

• • Crash when opening Equalization settings in Macro.
  • Error crashing when deleting music in the Record / Pause state.
  • Crash when trying to change the time of multiple tracks.
  • Switch tabs between labels that stop working.
  • Refuse to export some large files (4GB).

In short, Audacity impresses many users with its unique features and easy accessibility. The fast processing speed and superior sound quality make it even more popular.

Manual Audacity to edit Audio for free

To use Audacity, you must first download Audacity and install it on your computer. Then download your recording by selecting File from the main menu, then selecting Import -> Audio .

Select your recording by double-clicking on it, or by selecting it and then clicking the Open button. Once you have imported your recording, you will see a track in the main menu, which looks like this:

The lines on the track are waveform and it is very important to clean a track. Look for a part of the track that is flat, as flat as possible. This will be part of the track with no other sounds than ambient noise. Select a part of your song by clicking and dragging it to the full length of the flat part as shown.

What you are doing here is to choose a sample of your recording for Audacity according to this template and it will know what you are trying to accomplish. Next, select Effect , then Noise Removal from the main menu.

You will get this popup:

Click the Get Noise Profile button. The popup window will disappear, bringing you back to the Audacity screen. This time, select the entire audio recording by pressing Ctrl-A on your keyboard:

Next, select Effect then Noise Removal from the main menu again, to once again show this popup:

It is usually best to leave this to the default, and simply click the OK button. Then, when it is finished, you will see that Audacity has flattened the blurry parts of your waveform:

To hear how your recording sound after cleaning the noise, click the Play button to see the result:

Removing background noise is just one of the many features you can do with Audacity, to perform other features, you just need to explore some options on the main menu bar that you see.