Norsonic Nor145 Bedienungsanleitung

Norsonic Nor145 & Nor150

Reference Tone

Used to reference the correct audio playback level for the listener.

Reference Tone

The reference tone is a sound

recording made on the device by

pressing the CAL button. It’s an

internal sound linked to the internal

gain and input sensitivity of the

microphone.

The sound recording has a

continuous pink noise sound level of

around 70dB which can be played

back through the speakers or

headphones as the reference level.

The sound recording when played

back is much like the sound you

hear when trying to tune your radio

to the correct frequency. This noise

will be played back through the

speakers which we will reference

our human ear and sound meter to.

Pink Noise

Pink noise is

like the

sound of the

radio tuning.

Pink Noise

Adjust the volume

of speaker until

70dB is reached at

the listening point.

Pink Noise

Adjust the volume

of speaker until

70dB is reached at

the listening point.

Adjusting the sound level

of the speaker to the

reference tone (pink noise)

helps us perceive how

loud or quiet a recording

is in the context of the

complaint.

Load in your NNR app

Press SETUP

The ‘Settings’

Go to ‘Marker’

The ‘Settings’

Turn ON ‘Marker 1’

Edit ‘Marker 1’

The ‘Settings’

GREEN ✔

Name: Reference Tone

Type: Toggle

Colour: Firebrick Red

Action: Recording & Reference Tone

The ‘Settings’

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