Wavesurfer hints - Linguistics 103 - Bruce Hayes - UCLASome hints on usingWavesurferContents.About WavesurferWavesurfer is an easy-to-use acoustic analysis software package distributedfor free by the at the in Stockholm, Sweden. There is a.I highly recommend using the older version, 1.8.5. You can get it.Starting upWavesurfer doesn't have to be installed; you just download it and unzip intoa folder of your choice.To do stuff with Wavesurfer, you either first use it to make a recording,or you open up an existing digital recording.Making a recordingIf you want to get yourself a microphone, I suggest getting the type thatplugs into the USB port of your computer. These digitize the signaloutside the computer, reducing noise considerably.The Wavesurfer interface uses the standard tape recorder style buttons.(Red dot is record, right triangle is play, square is stop, and soon.) Try recording with the red button. If it works, move onto the next direction; if you're having trouble, click.Giving yourself enough time: if you're doing a recording morethan ten minutes long, ask for enough time. Select File,SoundI/O, Record Time Limit, and enter the maximum number ofseconds you need.Opening an existing fileIt might pay first to fix your copy of Windows so you can see the file suffixes.If you don't know how to do this, visit. Once you've done this, you can determine what kind of soundfiles you have, by looking at the suffix (.wav,.aiff, etc.).

Wavesurferopens various kinds of sound file.To open a sound file in Windows, right-click on it and select OpenWith. Choose Wavesurfer, if necessary picking Browse to find wherethe program is (it will be on your CD drive, or if you downloaded it andinstalled it, in your Program Files folder).AnalysisHere's what the Wavesurfer interface looks like when you open up the program:The one slightly counterintuitive bit in Wavesurfer is this: to getstarted, you need toright-clickon what you're recorded, as shown and select Create Pane. Itwill give you the list of options, like:. Waveform.

Apr 19, 2020  freac is a free audio converter and CD ripper with support for various popular formats and encoders. It converts between MP3, M4A/AAC, Opus, FLAC, Ogg Vorbis, WMA, AIFF, WAV and other formats. You can easily rip your audio CDs to MP3 or M4A files for use with your hardware player or convert files that do not play with other audio software.

Garden tractor backhoe plans. Do they work good on the front of the older cub model 149? ::AuthorMessageMowdiggerRegularJoined: 21 Mar 2012Posts: 94Posted: Mon Jan 06, 2014 3:15 pm Post subject: Snowblower for Cub Cadet 149I need some advice on cub cadet snow blowers.

Spectrogram. Pitch Contour. Time AxisWhat you pick will depend on what you're analyzing, but I recommend you alwaysinclude a time axis.

I like to pick all four of the above, then I savethe configuration; see for how to do this.You can change the size of the windows by dragging on the edges with themouse.Here is an example of a full analysis in Wavesurfer; it has a time scale,pitch track, spectrogram, and waveform of me saying The quick brown foxjumps over the lazy dog.Analysis - a convenientshortcutRight-click on the screen, select Apply Configuration then Speechanalysis. This gives you a pretty nice setup that is especiallygood for measuring formant frequencies.Adjusting the displayOften, pitch tracks are hard to interpret unless you stretch them verticallyto show the pitch changes clearly. To do this, right click on the displayand select Properties, then Data plot, find Plot valuebounds, and lower the Max until it's just a little higher thanthe maximum pitch found in the recording. Then click Ok.Likewise, spectrograms are often easier to read if you cut off the topfrequencies. I find it's useful to cut them off at 4000 hz if thereare no sibilants, and 6000 hz if there are.

To do this, right clickon the spectrogram window and select Properties, then enter a number(hz) for Cut Spectrogram At and click OK.Wavesurfer also has a nice interface for adjusting the legibility ofspectrograms. Right-click on your spectrogram and pick Spectrogramcontrols. Then you can drag the little black box to adjustbrightness and contrast, and drag the slider to go smoothly between wide-bandand narrow-band.Measuringformant frequenciesRight click, then Create pane, then Formant plot. Thisgives you a spectrogram in which the formants are plotted fairly exactlyin little colored lines. If you put the cursor on this spectrogram,then at the bottom of the screen will appear the values for F1, F2, F3, andF4.So, in this particular spectrogram, at this particular location of the cursor,F1 is 334 Hz, F2 is 1976 Hz. I'm saying e, so these frequencies are moreor less what we'd expect.Chopping out what you don't needOften a recording has unwanted pauses at the beginning or end, or betweenitems. Select these pauses with the mouse and press Delete.Or select what you want and select Zoom to selection from theView menu.Saving a configurationOnce you have the display looking nice you can save the configuration.Right-click on a panel, then select Save Configuration.

Itwill save your settings, with a name of your choice, in a little file (onmy Windows computer, the location of this file is C:Documents andSettingsbhayes.wavesurfer1.8configurations). When you start upWavesurfer, you can right-click a panel, select Load Configuration,and then select your stored configuration.PrintingYou can follow the directions in the Wavesurfer manual for printing, butit involves downloading various other software and may not work.

A 'quickand dirty' alternative is to grab what's on the screen and print it in anotherprogram.Windowsa. While in Wavesurfer, type Alt PrintScrn (this is an archaic keyon the computer keyboard hardly ever used any more, but very useful here!).b.

Open the Windows utility program called ' Paint' (find it, if necessary,by searching for 'mspaint.exe') and select Edit, then Paste(or, faster, Ctrl v) You'll then have a copy of your Wavesurferscreen which you can edit with Paint and print.c. Sometimes it's a good idea to use the Select tool in Paint to grabjust the bits of the Wavesurfer output that are most relevant and useful.Select this material, then Copy it ( Edit menu, or justCtrl C). Then File, New, Paste ( Ctrlv).d. Once you've pasted into Paint, you can save the image, or you can typeCtrl A ('Copy all'), go into your word processing program, and type CtrlV ('paste').

In many word processing programs, you can resize images to fitthe page.MacThe following is a lightly-edited version of information offered by twoexperienced Mac users.To take a picture of the whole screen, the keyboard shortcut is: Cmd +Shift + 3.When taking a screenshot on a mac that isn't the entire screen it self, youpress Cmd+Shift+4. This will bring up a little cursor that looks likecrosshairs. Place the cursor wherever you want to start your screen shot,then hold left click and drag. Once you have the area on the screen thatyou want, release the left click. This will save a.png file (Image filesimilar to a.jpg or.gif) to your desktop. You can then open thisfile and paste it into your document.For more information, visitMoreThere's more. Read.Hints andtroubleshootingSetting Inputs and Volume Levels inWindowsBe sure your computer is set up to record from the microphone or line input,whichever one you happen to be using.

To do this, right click on thelittle loudspeaker at lower right of screen, then Open volume controls,Options, Properties, Recording, Ok, check eitherMicrophone or Line In, set recording level. Then closethe Volume Control window. You may have to experiment to find a level thatis loud enough but doesn't overload.If there is no little loudspeaker at the lower right of your screen, openWindows Help and search on Volume Control.Can't make pitch track?The newest version of Wavesurfer will refuse to make a pitch track if you'veproduced a stereo recording.

Fix this by right-clicking on the display,selecting Properties, then picking the Sound tab, then entering1 in Set Number of Channels.