TIP: On either side of the greyed out area a Hand will appear, drag the sides of the marked area with holding left button and release! The screen will now look like this: Then hold and drag the mouse to the right or left to define the area you like to edit. To select a part of the recording set your pointer (arrow) on a place along the X-axis and push left mouse-button. The horizontal X-axis is in seconds and minutes, this total recording is ab 8 minutes long, I will work with only a part of this. I have set: Max 9000 Hz, Min 0 hz Window type: Hamming, Window size 4096. NB! In Edit>Preferences you can preset the scale you want to start with when opening Audacity. TOP scale is time in seconds, first 6 seconds of recording shown. On the Y-axis (left vertical) is the frequency range from 0 Hz to ab 12 000 Hz (12 Khz), To change/zoom the frequency-range push left button on the axis above 0k, shift-push left same place for opposite zooming of the scale. Open your file and then you will get a screen looking something like this: The birds mimics loads of birds in this recording! My 8 minute long testfile is a Bluethroat Luscinia luscinia from Northern Norway singing, the frequency range of the song starts at about 2 Khz and all the shady area below are noise from wind and rivers nearby. It is called highpass.ny.* If you do not have it, then make sure you have Audacity version 2.1.2 (PPA) or higher – see Add/Remove Plug-ins** and install from there.įirst you need to open a recording via File> Open **Effects** right at the bottom in **Plug-ins 1-15**.* If you cannot find it there, first check if you have the file on your system under usr/share/audacity/plug-ins. **plug-in** which should ship with the Audacity package but does not show in the list of filters. Linux/Ubuntu users: because **High Pass Filter** (among other filters) is a I use a PC for this guide, but it works more or less the same way on a Mac!įor further insight in setup of Audacity read the article by Volker Arnold. Through this simple guide I hope you will be more familiar with this powerful tool and in the end publish more (and less noisy) birdsounds from around the world at or Macauley Library ++ Push the small triangle up left and change between waveform and spectogram. Personally I prefer to work in Spectogram view so I can see the noise, pings, handling noise, stomach rumbling and other unwanted parts of the recording. See for more information, NB we do not take any responsibility for software you download!Įditing birdsongs and calls in the free software Audacity is quite simple when you get to know the basics of the layout. A package of loads of fun playing around with files up to 24 or even 32 bit float. You can cut files, remove low-pitch rumble, remove bands of sounds like crickets or funny machinery with equalizer and you lower or risen volume before uploading as mp3 or wav for further use+++. To change between Waveform and Spectogram i Audacity push the small triangle close to the filename UP LEFT!Īudacity is a free editing software you safely can download and use.
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