EDIT: after purchasing a new audio interface to replace my older M-Audio device that dies, I am no longer getting the results posted below. The frequency response I'm getting with the One X is now nearly identical to what GSMArena measured for the One S, which was excellent.
Please see my later post with a new graph.
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I've posted this on XDA but decided to post here as well.
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For those of you who are interested, I used RMAA and my M-Audio Firewire 410 audio interface to record and analyze the following:
- Samsung Nexus S with Voodoo Sound
- HTC One X LTE with sound processing off
- HTC One X LTE with Beats audio on (headphone set to Other)
I used supercurio's new app that plays a RMAA test signal to do this. Also, I repeated each test twice to verify that my results were accurate.
Note that on the One X, the output level doesn't go beyond -10dB when volume is at maximum, so I adjusted the Nexus S to -10 dB, even though it can go higher.
I have no idea if my methodology is sound, but I'd say the frequency response speaks for itself.
| Test |
Samsung Nexus S (Voodoo) |
HTC One X LTE |
HTC One X LTE (Beats) |
| Frequency response (from 40 Hz to 15 kHz), dB: |
+0.01, -0.12 |
+1.17, -1.68 |
+3.32, -1.20 |
| Noise level, dB (A): |
-92.6 |
-93.6 |
-90.7 |
| Dynamic range, dB (A): |
88.1 |
88.9 |
90.7 |
| THD, %: |
0.562 |
2.092 |
3.140 |
| IMD + Noise, %: |
100.000 |
100.000 |
100.000 |
| Stereo crosstalk, dB: |
-87.5 |
-89.4 |
-87.1 |
Edited by crabnebula - 7/6/12 at 10:47pm
