Question

Please show me in pictures how to use microphone and speaker using Multism, it didn't work when I try, how to get an output?

Answer 1

To use the microphone and speaker follow these steps:

1. Place a LabVIEW microphone by selecting Simulate»Instruments»LabVIEW Instruments»Microphone
2. Double-click the microphone, set the parameters, then click Record Sound. The Record Sound button will be greyed out while the instrument is recording. Once it is finished, the button will be enabled
3. Build a Multisim circuit. The data from the microphone will be used as an input source to the circuit
4. Select Simulate»Interactive Simulation. End Time should be the same or greater than the duration you set in the microphone settings
5. Simulate the circuit by selecting Simulate»Run or click the Run icon
6. Place a LabVIEW speaker by selecting Simulate»Instruments»LabVIEW Instruments»Speaker
7. Double-click the LabVIEW speaker. While the simulation is running, the Play Sound button is greyed out to indicate it is acquiring data from the Multisim circuit
8. Once the simulation end time has been reached, the simulation will stop and the Play Sound button will be enabled
9. Click the Play Sound button and you should hear the signal from your computer speaker

To use the microphone, you must do the following:

1 - Insure that the simulator is off

2 - Double click the microphone symbol on your schematic

3 - Under Recording Duration, enter the length of your sound sample

4 - Pick the sound device and sampling rate appropriate for your situation

5 - Click Record Sound

6 - Speak into your microphone, Multisim will stop recording after the duration set in step 3

7 - After this, Multisim will have stored the audio data and is ready for simulation

Now, for the other end, the speaker:

1 - Insure that the simulator is off

2 - Double click the speaker symbol on your schematic

3 - Under Playback Duration, enter the length of audio you wish to sample

4 - Pick the sound device and sampling rate appropriate for your situation

5 - Start the interactive simulator

6 - Watch the lower right corner. You will see a timer similar to: "Tran: 0.123 s". Let the simulator run until this timer passes the playback duration that you set in step 3. When the simulation is running Multisim is saving all the audio data in the background. If you stop the simulator prematurely, Multisim will still save the audio data, but only up to the point where you stopped it.

7 - To play back your simulated data, click Play Sound in the speaker properties window.