B&K 2250 Light Uživatelský manuál stáhnout pdf (Strana 121)

CHAPTER 12

Signal Recording (Optional Module)

113

The small triangle above the profile indicates the amount of sound you have in the internal

buffer – ready for storage in a wave-file. You will have sound from this triangle to the right-

hand side of the profile. The triangle is updated every second.

To make a signal recording using the stylus, you tap and hold the stylus on the profile display

and drag it to the position where the signal recording should end, then you remove the stylus

and get a drop-down menu with the possibility of setting one of the six markers. If you select

Sound, then a sound marker is made and the sound for the marked interval is stored in a wave

file. Only the portion of the sound available in the internal buffer (to the right of the small

triangle) will be stored and the sound marker will only indicate this part.

Note: When selecting an interval for storing (or setting a marker), the profile display freezes,

but the signal recording is still updated in the internal buffer. The part of the buffer available on

the screen will decrease and you will see the small triangle move to the right. Be sure not to

wait too long in selecting the Sound marker from the drop-down menu – otherwise the signal

recording will disappear from the internal buffer.

12.2.4 Playing the Recording

With your G4 analyzer, you can playback the sound simply by selecting part of the marker – as

described in section 11.3.3 – and choose Play Sound from the resulting drop-down menu. The

following drop-down menu will then appear, see Fig.12.2.

Fig.12.2

Playing the recording –

the drop-down menu

Select one of the four ways of playing a sound: Selection will play the part you have selected;

Repeat Selection will play the selected part until you press Cancel on the pop-up menu; To End

will play the sound from the position you selected the sound marker to the end; and finally All

will play the entire signal recording, regardless of your selection point.

*. Playback on the analyzer is available only with hardware version 4. If you have hardware versions 1 – 3,

you can play back recordings on a PC using Measurement Partner Suite BZ-5503. See section 12.2.5 for

more information.

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B&K 2250 Light Uživatelský manuál Strana 121