EFX-TEK AP-8 Manuel - Sayfa 5

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While the serial connection provides the greatest flexibility, beginning prop-builders can use this connection

between the Prop-1 and the AP-8.

To start the AP-8 from the Prop-1 using the connection, you could use the following code segment:

Play_Sound:

HIGH 0

PAUSE 50

LOW 0



NOTE: If the Loop switch is set to the closed position the selected segment will continuously play until

the AP-8 is powered-down or receives the "X" command message on the serial input.

Transferring Sounds to the AP-8

The AP-8 uses WinBond's ISD2560 ChipCorder

segments to the AP-8 is accomplished through an audio connection between a PC (or similar audio source, e.g.,

a CD player) and the AP-8. For most applications, the following process is used to record one or more audio

segments:

1. Connect your PC sound card output to the AP-8 with a stereo 1/8" cable (male-to-male).

2. Move the AP-8 power switch to the LO position.

3. Select the track(s) to record (left, right, or both) with the IN L and IN R jumpers.

(Default setting is both in which mixes the left and right channels to a mono track)

4. Move the PLAY/REC jumper to the REC position.

(The red REC LED will illuminate)

5. Select the segment for recording with switches 0..2; set the loop (L) switch to Open.

(Refer to the segment table below)

6. Start the audio on your computer and press the PLAY/REC button on the AP-8.

7. Hold the PLAY/REC button until the sound is finished playing, then release.

8. Repeat steps 3 through 7 as required for all segments.

9. Move the PLAY/REC jumper to the PLAY position.

Note that every sound card and PC is different, so you will probably have to experiment to get the best possible

sound. When possible, use an audio editing tool (Team EFX likes a neat freeware program called Audacity, see

audacity.sourceforge.net for details) to "normalize" all of your audio files to a consistent level. This will allow you

to set you PC volume level to a known position to get good recordings. Once you find a setting that works, make

note of it for future use. In general, if you can listen to the sound from your PC comfortably though a set of

headphones then it should record well. If the volume is too high the sound will become scratchy and distorted;

too low and you may hear unwanted hiss.

The ISD2560 addressing scheme causes the AP-8 to break the audio segments as shown in the table that

follows. Note the position of the segment select switches for each of the AP-8 audio segments.

EFX-TEK  (916) 616-1658  www.efx-tek.com  [email protected]

as its recording and playback element, so transferring audio

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