RightMark Audio Analyzer test report
| Testing device | iPod Touch 3G |
| Sampling mode | 16-bit, 44 kHz |
| Interface | |
| Testing chain | External loopback (line-out - line-in) |
| RMAA Version | 6.2.3 |
| 20 Hz - 20 kHz filter | ON |
| Normalize amplitude | ON |
| Level change | -12.2 dB / -12.3 dB |
| Mono mode | OFF |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
Summary
| Frequency response (from 40 Hz to 15 kHz), dB | +0.31, -0.20 |
Good |
| Noise level, dB (A) | -83.7 |
Good |
| Dynamic range, dB (A) | 83.6 |
Good |
| THD, % | 0.0095 |
Very good |
| THD + Noise, dB (A) | -73.9 |
Average |
| IMD + Noise, % | 0.045 |
Good |
| Stereo crosstalk, dB | -79.9 |
Very good |
| IMD at 10 kHz, % | 0.028 |
Good |
| General performance | Good |
Frequency response
| From 20 Hz to 20 kHz, dB | -0.65, +0.31 |
| From 40 Hz to 15 kHz, dB | -0.20, +0.31 |
Noise level
Left |
Right |
|
| RMS power, dB | -82.6 |
-82.6 |
| RMS power (A-weighted), dB | -83.7 |
-83.7 |
| Peak level, dB FS | -60.3 |
-59.5 |
| DC offset, % | -0.0 |
-0.0 |
Dynamic range
Left |
Right |
|
| Dynamic range, dB | +82.6 |
+82.6 |
| Dynamic range (A-weighted), dB | +83.6 |
+83.6 |
| DC offset, % | -0.00 |
-0.00 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | +0.0100 |
+0.0089 |
| THD + Noise, % | +0.0210 |
+0.0208 |
| THD + Noise (A-weighted), % | +0.0205 |
+0.0201 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | +0.0381 |
+0.0522 |
| IMD + Noise (A-weighted), % | +0.0236 |
+0.0224 |
Stereo crosstalk
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -79 |
-80 |
| Crosstalk at 1000 Hz, dB | -80 |
-78 |
| Crosstalk at 10000 Hz, dB | -78 |
-78 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.0295 |
0.0268 |
| IMD + Noise at 10000 Hz, | 0.0317 |
0.0255 |
| IMD + Noise at 15000 Hz, | 0.0285 |
0.0262 |