Williams Sound PPA R38 User Manual download pdf (Page 18)

Personal PA

DSP FM Wideband Transmitter

To set up the Custom Audio Preset:

1. Press the Menu button. The display will show “AUDIO SETTINGS” in the selection box.

2. Press the “>” button to display “AUDIO SOURCE” in the selection box.

3. Press the “v” button twice to display “AUDIO PRESET” in the selection box.

4. Press the “>” button to access the Audio Presets. The current preset will be shown in the selection box.

5. Press the “v” button until “CUSTOM” is displayed in the selection box.

6. Press the “>” button to access the Custom Audio Preset. The current High Pass Filter setting will be displayed in the

selection box.

7. Press the “^” or “v” button until the desired High Pass Cutoff Frequency is shown in the selection box. Press the “^” menu

button to decrease the cutoff frequency, or the “v” button to increase the cutoff frequency. Each time the “^” or “v” button

is pressed, the cutoff frequency will be changed by 1/2 octave. This can be repeated until the cutoff frequency reaches

the minimum of 31 Hz, or maximum of 630 Hz. Note that the setting changes live, it does not need to be “selected” with

another button. The setting displayed in the selection box is the one that is active.

8. Press the “>” button to access the Compression Setting.

9. Press the “^” or “v” button until the desired Compression Ratio is shown in the selection box. Press the “^” or “v” button

to change the compression ratio to 1:1, 1.5:1 or 2:1. Note that the setting changes live, it does not need to be “selected”

with another button. The setting displayed in the selection box is the one that is active.

10. Press the “>” button to access the Low Pass Filter Setting.

11. Press the “^” or “v” button until the desired Low Pass Cutoff Frequency is shown in the selection box. Press the “^” button

to increase the cutoff frequency, or the “v” menu button to decrease the cutoff frequency. Each time the “^” or “v” button

is pressed, the cutoff frequency will be changed by 1/2 octave. This can be repeated until the cutoff frequency reaches the

minimum at 3.5 KHz, or maximum at 16 KHz. Note that the setting changes live, it does not need to be “selected” with

another button. The setting displayed in the selection box is the one that is active.

12. When the desired settings have been changed, press the Menu button to exit the menu and return to the Main Info

Screen.

1b. Audio Source

The Audio Source menu is used to congure the T45 for the audio source jack and type of source that will be used. The audio

source must be congured in the menu before plugging the source into the jack. The transmitter will accept the following audio

sources:

• Balanced Microphone on a 3-pin (XLR) connector without phantom power.

• Balanced Microphone on a 3-pin (XLR) connector with 12 volt phantom power.

• Balanced/Unbalanced microphone on 1/4 inch (TRS) jack without phantom power.

• Balanced/Unbalanced microphone on 1/4 inch (TRS) jack with 12 volt phantom power.

• Balanced/Unbalanced Line on a 3-pin (XLR) connector.

• Balanced/Unbalanced Line on 1/4 inch (TRS) jack.

• Digital Audio (AES/EBU) on a 3-pin (XLR) connector (44.1 or 48 KHz sample rate).

• Digital Audio (S/PDIF) on an RCA jack (44.1 or 48 KHz sample rate).

The Audio Source menu has ve possible selections to choose from: Analog Line In, Mic, Phantom Mic +12V, Digital AES/EBU, or

Digital S/PDIF.

To select the audio source:

1. Press the Menu button. The display will show “AUDIO SETTINGS” in the selection box.

2. Press the “>” button to display “AUDIO SOURCE” in the selection box.

3. Press the “>” button to access the Audio Sources. The current audio source will be shown in the selection box.

4. Press the “^” or “v” button until the desired audio source is displayed in the selection box.

5. When the desired audio source has been selected, press the Menu button to exit the menu and return to the Main Info

Screen. At this point you can plug the source into the jack on the back of the T45.

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Williams Sound PPA R38 User Manual Page 18

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