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Sound Specifications

The frequency response of the sound circuits, not including the microphone and speakers, is within plus or minus 1 dB from 20 Hz to 20 kHz.

Total harmonic distortion plus noise (THD+N) as a percentage of full scale are shown in Table 3-6.

Table 3-6 Distortion specifications

Connector and level	Total harmonic distortion and noise
Line input	0.03%
Line output	0.03%
Headphone jack, open circuit	0.03%
Headphone jack, 32-ohm headphones, -20 dBFS level	0.1%
Headphone jack, 32-ohm headphones, -3 dBFS level	1.0%

The signal-to-noise ratios (SNR) for various inputs and outputs are shown in Table 3-7. The values shown are unweighted; values with A weighting would be about 8 dB higher.

Table 3-7 SNR specifications

Connector	Signal-to-noise ratio
Line output	85 dB
Headphone jacks	85 dB
Line input	85 dB
Internal CD or DVD, as analog sound source	85 dB
Internal CD or DVD, as digital sound source	96 dB