MacroSystem Digital Video HDV-Recorder Instrukcja Użytkownika Pobierz pdf (Strona 70)

Chapter 4

your audio sample. As with the image processing effects, it is

used by MacroSystem for internal debugging.

Mute This function mutes either the left-hand and/or the right-

hand channel as desired. In addition, you can also deactivate

the function using the ‘---’ button so that the audio track is

only muted for a speciﬁc period of time and so that you need

not remove the effect.

Surround The surround effect is used in conjunction with a

surround receiver or ampliﬁer to assign the sound of an audio

sample to a certain channel, i.e. to a certain loudspeaker. It

can be used to create interesting acoustic impressions, in

particular during audio mixing with commentaries. On a normal

mono or stereo television set, surround audio is reproduced as

‘ordinary’ audio, i.e. without surround effects, through a single

or two loudspeaker(s). A ﬁlm containing surround effects is

thus suitable for playing over any set. Once the surround effect

has been selected, the following options are available:

front left Sound is played through the front left-hand loud-

speaker only.

front centre Sound is played through the front centre loud-

speaker only.

front right Sound is played through the front right-hand loud-

speaker only.

rear The sound is played through both rear loudspeakers.

rear left Sound is played over the rear left-hand channel only.

This is possible only with a receiver/ampliﬁer which supports

Pro Logic II (trademark of Dolby Laboratories). Without Pro

Logic II, sound is played simultaneously over the two rear

channels and the front left-hand channel, creating an effect

which is similar but not as clear.

rear right Rear right functions in a similar manner to rear left,

but for the right-hand rear channel. In all cases, a mono audio

sample is ﬁrst generated from the original stereo sample, as

playback is ultimately through a single loudspeaker only.

Sample -> Scene Clicking on the Sample -> Scene button

creates a video sequence with black background from your

audio sample, which appears in the scene bin. You can use

this video sequence as a basis for further video operations

(e.g. insert editing). This function can greatly simplify audio-

based editing.

Copy sample Clicking on the Copy Sample button creates an

identical copy of the previously clicked sample in the list of

audio samples on the right. This function is useful when you

wish to use both the original material and a modiﬁed version.

The copy appears in the samples list with the same name as

the original, but is identiﬁed with the sufﬁx. K (e.g. A1.K).

Width This function artiﬁcially increases the distance between

the loudspeakers. This increase is achieved by negative chan-

nel crosstalk. You can select a width of between 0 and 175%.

Declick reduces the click and crackle noises found in particu-

lar on records. Use the Declick-level slider to set the value to

de-clicking and de-crackling in the recording. Don’t set this too

high as this will have in an inﬂuence on the sound quality.

Denoise reduces the noise level found on old tapes and

records. First, select a noise position. A high value for the de-

noise level will also reduce the audio quality. If you are working

with very noisy material, you must ﬁnd a compromise.

Equalizer offers a 10-channel control for frequencies between

31 Hz to 16 KHz.

Note: A stronger increase in some frequencies may possible

reduce the total volume to reduce overmodulation/clipping.

Copy Channel As can be seen under Mode, this function

copies the left-hand channel to the right-hand channel or vice-

versa, as desired.

Swap sides This function interchanges the left-hand and right-

hand channels.

Sound presets offers proﬁles, speciﬁcally suitable for classic,

jazz, rock, pop and dance music.

Sound control Sound control is used to adjust bass, mid and

treble tones.

Volume Use this function to increase or reduce the volume for

the audio sample in question from -20 to 6 dB.

Volume & fading is used to normalize the volume with select-

able fade in and fade out times. The level has a range between

-48 db and 0 db. Set the slider to 0 db and the music piece will

be raised to the maximum possible volume without clipping. If

you set a negative volume, the music will be quieter than the

maximum level. This does not necessarily reduce the volume

by a particular level, but instead changes it to a certain level.

Note that even if you apply the same normalization, some au-

dio may still ‘seem’ to have a different volume. This is subject

to differing dynamics that aren’t affected by this ﬁlter.

Volume LR Use this function to adjust the two channels (left

and right) of an audio sample separately. Here too, you can se-

lect within a range from -20 to 6 dB. Mono switches the stereo

signal to mono.

Mono switches the stereo signal to mono.

NOP This function cannot be used to make any changes to

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