July 15, 1998 Quick and Dirty Instructions for Voce Vista ver 0.6 for Windows 95. Voce Vista (VV) can display spectrum analysis and time signals from audio data and EGG data input as left and right channels respectively to a Windows sound card. VV can analyze and record audio data in real time from line inputs, or can analyze recorded files containing left and right channel audio and EGG data. TO ACTIVATE SOUND CARD: You must first instruct your Windows sound card to process audio signals via the "line-in" connection. Windows 95 provides a separate Volume Control program for this purpose. Choose "Project - Volume Control" from the Voce Vista menu. This will start the Volume Control program. Check "Options - Advanced Controls" if possible in the Volume Control menu. Then choose "Options - Properties" from the recording control menu. Then mark the "Recording" button, and under "Show the following volume controls" choose "Recording Control, and "Line-In." Then click OK. Now you will see a Recording Control which allows you to adjust the volume for Line-In recording. Be sure that Line-In "Select" is marked. Increase the volume control sliders for Line-In to the maximum. TO ANALYZE AUDIO DATA: Connect audio data source to the left channel and EGG data source to the right channel of the Line-In stereo jack of your sound card. Choose "Project-Signal Analysis" from the program menu. TO ANALYZE RECORDED DATA: Choose "Project-File Analysis" from the program menu. You will be prompted for a file name. VV files will always have a ".vis" file extension. Once a recorded file has finished playing, you can restart it again by pressing the space bar. TO FREEZE SIGNALS FOR ANALYSIS: While analyzing either audio data or recorded data, select the "Freeze" button at the bottom of the VV window using the mouse. Running and/or frozen signals are always shown in yellow. You can also use the space bar to freeze and restart the analysis. TO STORE SIGNALS FOR COMPARISON: While analyzing either audio data or recorded data, select the "Store" button at the bottom of the VV window using the mouse. Stored signals are always shown in blue. TO RECORD DATA: After starting to analyze audio data, select the "Record" button at the bottom of the VV window. You will first be prompted to enter a file name for the recording. Thereafter, when you select the Record button, audio and EGG data will be recorded to the named file. You may pause and restart recording to the same file. The recorded file will be closed and saved when you select the "Stop" button. (Note that there may be a delay of a few seconds before the Stop button is active after you have paused recording.) Don't try to record direct to floppy disk, but instead record to a file on your hard drive in order to achieve the needed recording speed. VV recorded files will have a file extension of ".vis". TO PRINT THE DISPLAY: After freezing the display, choose "Print Window" from the main program menu. TO SAVE A COLOR BITMAP OF THE DISPLAY: After freezing the display, choose "Save Bitmap" from the main program window. TO EXIT THE PROGRAM: Select the "Stop" button with the mouse. Then close the VV window or choose "Project-Exit" from the program menu. TO CHANGE ANALYSIS PARAMETERS: Select the "Analysis" button at the bottom of the VV window. Analysis parameters are as follows: ANALYSIS OPTIONS: Analysis Bandwidth - The bandwidth of the frequency spectrum analysis. Use the minimum value of 10 Hz for high resolution spectrum analysis. Use values of 200 Hz or more for "Difference Spectrum" calculation - see below. Averaged Spectrum - The number of consecutive spectrum samples averaged together before display. On a fast computer, Voce Vista completes an updated frequency analysis in about 40 msec. So a count of 25 for Spectrum average corresponds to averaging the displayed spectrum over a period of about one second. Freq Range (kHz) - The frequency range of the spectrum display Audio Segment (msec) - The length in milliseconds of the audio signal display. Glottogram Polarity - Polarity switch for the EGG display DISPLAY MODES: Spec, Audio, Glottogram - Display the audio signal, the frequency spectrum, and the EGG in a three pane window. Select with the F1 Key. Audio Spectrum - Choose the spectrum of the audio signal for display in a two pane window. Select with the F2 Key. Glottogram - Display only the EGG time signal. Select with the F3 Key. Spectrum - Display only a frequency spectrum. Select with the F4 Key. Spectrum Display - You can display either the spectrum of the audio signal, or a spectrum representing the difference in harmonic levels between the audio and EGG signals. This difference spectrum appears to be a measure of the effect of the resonances or formants of the vocal tract. Note that Analysis Bandwidth and Spectrum Averaging (above) should be increased in order to view a stable difference spectrum. Select either the audio spectrum or the difference spectrum by using the F5 key (or the option button) to toggle between the two. COMPARISON MODES: Disabled - No display comparison between input signals and stored signals. Select with the F6 Key Above/Below - The display window is split into upper and lower sections comparing the input signal with the stored signal. Stored signals are blue, input signals are yellow. Select with the F7 Key. Overlay - The input signals are overlayed onto the stored signals. Stored signals are blue, input signals are yellow. Select with the F8 Key. ARROW KEYS: The Up/Down arrow keys can be used to move the EGG Closed Quotient cursor, or to move the frequency cursor on the spectrum display. Choose between modes by using CTRL-F7 (or click on the option button) to toggle between the two. For slower scrolling, hold down the Shift key while using the Up/Down arrows. Note that a mouse click (left button) can also be used to set the frequency cursor on the spectrum display. The Left/Right arrow keys can be used to scroll the Audio and EGG time signals together, or to scroll the Audio signal alone. Choose between modes by using CTRL-F8 (or click on the option button) to toggle between the two. For slower scrolling, hold down the Shift key while using the Left/Right arrows. KEYBOARD CONTROLS: "A" - Display the Analysis dialog box for selection of display and analysis parameters "F" - Freeze a signal for analysis. The spacebar can also be used for this purpose. "S" - Store a signal for comparison. "R" - Begin recording real-time signals from microphone and EGG "Stop" or "Esc" - Stop analyzing recorded or real-time signals. F1 - Choose a three pane display of Spectrum, Audio, and Glottogram F2 - Choose a two pane display of Audio and Glottogram F3 - Choose a single pane display of the Glottogram F4 - Choose a single pane display of the Audio Spectrum F5 - Toggle between audio spectrum and difference spectrum F6 - Disable comparison of stored signals. F7 - Compare stored signals in an over/under display format F8 - Compare stored signals in an overlay format CTRL F7 - Toggle the Up/Down arrows to control either the EGG closed quotient cursor or the Spectrum display cursor CTRL F8 - Toggle the Left/Right arrows to control scrolling of either the Audio and EGG time signals together, or the Audio time signals alone Left/Right arrows - Fast scrolling of time signals. For slower scrolling, hold down the Shift key while using the Left/Right arrows Up/Down arrows - Fast scrolling of either the EGG cursor or the Frequency cursor. For slower scrolling, hold down the Shift key while using the Up/Down arrows.