HTC Mogul Cell Phone Review - Audio Quality
To test the quality of calls made by the HTC Mogul we use the same professional testing equipment used by many of the manufacturers themselves; a HATS (Head and Torso Simulator) that simulates the human head and ear and an electro-acoustic analysis program called
SoundCheck. This combination of hardware and software allows us to analyze the performance of the phones in depth, analyzing the quality of the sound that the phones send and receive. For more details on how we test audio performance of cell phones see
this article on how we test.
Sound Receive Frequency Response (7.33)
The graph above shows the frequency response of the HTC Mogul for received sound by the Mogul, such as a person on the other end of the line talking to you. The blue line represents the Mogul's performance while the two red lines show the limits within which we'd like to see the phone's curve lie. As you can see from the graph the Mogul generally lies within our limits, but it does go above them a bit at the lower end of the range. What this means is that lower frequencies may be slightly exaggerated, so the voice on the other end of the line may sound a little bassier than they really are. It also falls off fairly quickly at the high end of the frequency range, which means that voices may sound a little clipped. Still, despite these issues the Mogul performed reasonably well on this test, and voices should sound generally good.
| Cell Phone |
HTC Mogul |
T-Mobile Wing(on T-Mobile) |
BlackBerry 8800(on AT&T) |
| Score |
7.33 |
6.14 |
6.99 |
| Received Sound Frequency Response Graph (click to view) |
 |
 |
 |
Sound Send Frequency Response (7.68)
The quality of the sound sent by the Mogul (such as you speaking into it) is outlined in the chart above. Like the receive frequency chart the Mogul's performance is indicated by a blue line with our limits delineated in red. As with the sound receive frequency the sound sent from the Mogul bumps up against the limits, but only slightly. It also falls off rather quickly at the high end. The exaggerated frequencies mean that your voice could sound a little clipped. As with the receive frequency response, despite some problems the Mogul's performance was about average.
| Cell Phone |
HTC Mogul |
T-Mobile Wing(on T-Mobile) |
BlackBerry 8800(on AT&T) |
| Score |
7.68 |
6.14 |
5.7 |
| Received Sound Frequency Response Graph (click to view) |
 |
 |
 |
Handset Side Tone (9.12)
All phones insert some of your spoken voice back into your ear so that you can hear yourself during a conversation. The chart above measures the volume of this side tone in decibels. The Mogul averaged -17.12 decibels in our test, which is just a touch off the -18 decibels that the standard we test against looks for. This is a very good result; you won't have to raise your voice in most situations to hear yourself during a conversation.
