RightMark Audio Analyzer test report

Testing device iPod Touch 4G
Sampling mode 16-bit, 44 kHz
Interface  
Testing chain Triple Fi 10
RMAA Version 6.2.3
   
   
20 Hz - 20 kHz filter ON
Normalize amplitude ON
Level change -1.1 dB / -1.1 dB
Mono mode OFF
Calibration singal, Hz 1000
Polarity correct/correct



Summary

Frequency response (from 40 Hz to 15 kHz), dB
+0.90, -2.28
Average
Noise level, dB (A)
-88.6
Good
Dynamic range, dB (A)
89.0
Good
THD, %
0.023
Good
THD + Noise, dB (A)
-70.1
Average
IMD + Noise, %
0.013
Very good
Stereo crosstalk, dB
-74.2
Good
IMD at 10 kHz, %
0.020
Good
General performance
 
Good



Frequency response

Spectrum graph

From 20 Hz to 20 kHz, dB
-2.28, +0.90
From 40 Hz to 15 kHz, dB
-2.28, +0.90



Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-86.8
-86.6
RMS power (A-weighted), dB
-88.6
-88.5
Peak level, dB FS
-36.9
-33.6
DC offset, %
-0.0
-0.0



Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+87.0
+87.2
Dynamic range (A-weighted), dB
+88.8
+89.2
DC offset, %
-0.00
-0.00



THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
+0.0237
+0.0223
THD + Noise, %
+0.0254
+0.0240
THD + Noise (A-weighted), %
+0.0323
+0.0304



Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
+0.0133
+0.0127
IMD + Noise (A-weighted), %
+0.0097
+0.0095



Stereo crosstalk

Spectrum graph

 
Left
Right
Crosstalk at 100 Hz, dB
-78
-77
Crosstalk at 1000 Hz, dB
-74
-73
Crosstalk at 10000 Hz, dB
-49
-50



IMD (swept tones)

Spectrum graph

 
Left
Right
IMD + Noise at 5000 Hz,
0.0202
0.0207
IMD + Noise at 10000 Hz,
0.0202
0.0207
IMD + Noise at 15000 Hz,
0.0202
0.0207