It’s been a few days since we released AumeoPlayer Beta! Thanks to everybody for the great feedback.
 
Now we’ve been getting a lot of user reports, and some users have asked us:
 
“I can hear all the tones at their lowest volume when I was creating my audio profile! Can you lower the volume so I can have a more tailored experience?”

Firstly we would like to congratulate everyone whose ears are very sensitive, and can hear all the tones even at their lowest levels!
 
If you’re wondering why the tones are set at the volume they’re at now, it’s because the digital processing of the sound data inside the mobile phone’s processing engine also processes volume digitally. This can be confirmed in the source code of Android firmware.

There is nothing wrong with this type of processing in a phone’s normal daily use, but it presents certain limitations in Aumeo’s case. If AumeoPlayer asks the firmware to output a signal in a volume below a certain level, the sine waves would become square waves.  In other words, distortion would then occur and the audio profile’s results would be less accurate.
 
Trust us: the volume range of the audio profile’s output has been the subject of a long and painful debate during research and development. To test things and make sure our audio profiles are accurate we had to lock ourselves inside a sound chamber in complete silence for hours on end!
 
Ultimately after many rounds of testing, we settled on the volume range we have now for our audio profile creation process. Accuracy comes first, after all.

But wait. What does that mean for people with more sensitive ears? Would Aumeo the device have the same problem? 
 
Fortunately, the answer is no, and it is one of the major reasons why we are making a piece of hardware instead of just making audio-tailoring software.  With Aumeo the device we could control the output digitally and also analogly in multiple stages, so we can make sure perfect waves can be produced without distortion.
 
In summary, with Aumeo the device, we should be able to provide better audio-tailoring for more sensitive ears than with just the app alone. (Unless you have superhuman hearing abilities, in which case please report to the nearest science lab, thanks.)
 
Andy Cheng
CTO / Dev lead

1 Comment