Using The Sound Button - Sony PlayStation Portable PSP-1004 Instruction Manual

Using the sound button

The sound button is used to adjust the tone and to mute the sound for audio
playback and for key tones.
Adjusting the tone
Tone can only be adjusted when using the Headphones.
1
Press the sound button.
Each time you press the button, the tone changes as follows:
HEAVY
POPS
JAZZ
UNIQUE
OFF
Hint
The tone setting is temporarily set to "OFF" during gameplay.
Turning off the sound (mute)
1
Hold down the sound button for more than one second.
The sound will be muted.
POWER
HOLD
SELECT START
Strengthens both bass and treble to produce an intense sound
Strengthens the mid-range; ideal for vocals
Strengthens both bass and treble to produce a balanced sound
Strengthens bass, treble and mid-range sound
Normal tone
Using the sound button
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