Rightmark Audio Analyzer
We used Rightmark Audio Analyzer together with a loop-back cable to analyze the quality of the on-board audio solution.
Summary
Frequency response (from 40 Hz to 15 kHz), dB: | +0.25, -0.32 | Good |
Noise level, dB (A): | -86.9 | Good |
Dynamic range, dB (A): | 86.9 | Good |
THD, %: | 0.0068 | Very good |
IMD, %: | 0.021 | Good |
Stereo crosstalk, dB: | -87.7 | Excellent |
IMD at 10 kHz, %: | 0.102 | Average |
General performance: Good
For easier comparison we summed up the individual scores of all tested boards (1: Very poor, 2: Poor, 3: Average, 4: Good, 5: Very good, 6: Excellent). The sound quality of the AL8 on-board audio is among the best.
Frequency Response
Frequency range | Response |
From 20 Hz to 20 kHz, dB | -1.68, +0.25 |
From 40 Hz to 15 kHz, dB | -0.32, +0.25 |
Noise Level
Parameter | Left | Right |
RMS power, dB: | -81.7 | -83.0 |
RMS power (A-weighted), dB: | -86.9 | -86.9 |
Peak level, dB FS: | -68.0 | -69.5 |
DC offset, %: | -0.00 | -0.00 |
Dynamic Range
Parameter | Left | Right |
Dynamic range, dB: | +80.5 | +81.8 |
Dynamic range (A-weighted), dB: | +86.9 | +87.0 |
DC offset, %: | -0.00 | -0.00 |
THD + Noise (at -3 dB FS)
Parameter | Left | Right |
THD, %: | 0.0068 | 0.0071 |
THD + Noise, %: | 0.0220 | 0.0191 |
THD + Noise (A-weighted), %: | 0.0136 | 0.0138 |
Intermodulation distortion
Parameter | Left | Right |
IMD + Noise, %: | 0.0212 | 0.0222 |
IMD + Noise (A-weighted), %: | 0.0164 | 0.0166 |
Stereo crosstalk
Parameter | L <- R | L -> R |
Crosstalk at 100 Hz, dB: | -81 | -80 |
Crosstalk at 1 kHz, dB: | -85 | -87 |
Crosstalk at 10 kHz, dB: | -81 | -81 |
IMD (swept tones)
Parameter | Left | Right |
IMD + Noise at 5 kHz, %: | 0.0343 | 0.0343 |
IMD + Noise at 10 kHz, %: | 0.1129 | 0.1126 |
IMD + Noise at 15 kHz, %: | 0.1600 | 0.1608 |