Sony Ericsson P900 White Paper page 33
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Also See for P900:
- User manual (193 pages) ,
- Working instruction, mechanical (26 pages) ,
- Troubleshooting manual (21 pages)
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P900/P908 White Paper, December 2003
Loudspeaker Characteristics
General
The P900's built-in loudspeaker is most sensitive to middle and high frequencies;
tones below 400 Hz generate distortion instead of bass. Therefore, sampling
frequency for WAV should not be reduced below 16 kHz; otherwise the
characteristic low frequency sampling 'ringing' will be very distinct compared to
that of a more linear system.
Recommended WAV file format for the loudspeaker is 22.050 kHz sampling rate,
8-bit samples and 1-channel (mono).
P900 Loudspeaker
Ringtones
The frequency should be kept around 4 kHz with a narrow bandwidth in order to generate high SPL
(~90dBSPL@40cm) ring tones.
Stereo Headphone Characteristics
The P900 is supplied with a pair of high quality stereo headphones.
Recommended WAV file format for playback over the headphones is 44.1 kHz sampling rate, 16-bit samples
and 2 channel (stereo). Files to this standard are very large – use WAV only for short bursts of sound.
Recommended MP3 settings are 64 Kbps stereo.
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LZT 108 6643 R1G
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