DroidForums.net | Android Forum & News
This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Droid has a 2nd noise cancellation mic!!!
- Thread starter ice456789
- Start date
Maybe because it wasn't supported until 2.1? But I have scanned thru the 2.1 SDK changes and I didn't notice any mention that would even remotely have anything to do with a 2nd mic and/or noise cancellation. Of course that doesn't mean its not there in the real code that Moto/HTC/Google has.
It would be great if it was indeed a airway for a second mic.
My gut tells me that it's a slot used to disassemble the phone for repairs though
I thought that at first also, but why isn't there a matching "removal" slot on the identical part on the bottom ?????
Hmmmmm.
jefbystereo
Member
Its mentioned on the motorola site, I thought this wasn't that new of news. Although I agree that I am surprised it didn't get mentioned more in reviews.
"NOISE REDUCTION
Dual microphone noise reduction"
DROID by Motorola - Android phone - Motorola USA
"NOISE REDUCTION
Dual microphone noise reduction"
DROID by Motorola - Android phone - Motorola USA
arty2hottie
Member
Just wondering what that extra mic would be for or what is the advantage of it?
I was just about to say that I know I read it on the website before I even bought the phone. So if the second mic isn't enabled would it be considered false advertising?
It would be great if it was indeed a airway for a second mic.
My gut tells me that it's a slot used to disassemble the phone for repairs though
I thought that at first also, but why isn't there a matching "removal" slot on the identical part on the bottom ?????
Hmmmmm.
because the bottom is part of the main chassis. ive had my droid apart already, all that's good for is disassembly, there is nothing underneath it. that rubber bumper is just a sticker
vzwmandroid
Member
Droid has the key to control everything around it and we don't even know it!
Droid is alive!
Droid is alive!
It would be great if it was indeed a airway for a second mic.
My gut tells me that it's a slot used to disassemble the phone for repairs though
I thought that at first also, but why isn't there a matching "removal" slot on the identical part on the bottom ?????
Hmmmmm.
because the bottom is part of the main chassis. ive had my droid apart already, all that's good for is disassembly, there is nothing underneath it. that rubber bumper is just a sticker
Well maybe not, I got the guys from Fantastic Voyage to miniaturize me and my car and I drive right down that sucker.. Bent my darn front bumper when I ran into that gigantic mic... too tight to turn around and had to back out.
:icon_ devil:
Last edited:
found this on the Motorola help forums.
************************************************************************************************************
"Hello Droid/Milestone owners,
I have a French Motorola Milestone and here is what I noticed about the bad sound quality received by the other person. I admit I did not read all the messages, sorry if it's duplicate.
The fact is the Milestone (and I guess the Droid too) uses a two-microphones system for noice cancelling. One microphone records the voice; the other records the ambiant noise. The latter is located behind the phone, near the jack plug (there is a really tiny hole). I think the noise cancelling algorithm tries to suppress the ambiant noise from the voice... but apparently also suppresses a part of the voice itself for some users.....
What I tried was to put something like a tissue on top of this noise cancelling microphone, so that the algorithm has nothing to suppress to the voice. And that worked pretty well. Attached are recordings I made to show this. Sorry, they are in French, but I think there is no need to understand to see the difference.
Tomorrow, I will call Motorola France again and ask if there is a way to deactivation noise cancelling by software. In the meantime, I'll be glad to hear what you think about this and your results if you tried.
Yann
https://supportforums.motorola.com/message/99025#99025
************************************************************************************************************
"Hello Droid/Milestone owners,
I have a French Motorola Milestone and here is what I noticed about the bad sound quality received by the other person. I admit I did not read all the messages, sorry if it's duplicate.
The fact is the Milestone (and I guess the Droid too) uses a two-microphones system for noice cancelling. One microphone records the voice; the other records the ambiant noise. The latter is located behind the phone, near the jack plug (there is a really tiny hole). I think the noise cancelling algorithm tries to suppress the ambiant noise from the voice... but apparently also suppresses a part of the voice itself for some users.....
What I tried was to put something like a tissue on top of this noise cancelling microphone, so that the algorithm has nothing to suppress to the voice. And that worked pretty well. Attached are recordings I made to show this. Sorry, they are in French, but I think there is no need to understand to see the difference.
Tomorrow, I will call Motorola France again and ask if there is a way to deactivation noise cancelling by software. In the meantime, I'll be glad to hear what you think about this and your results if you tried.
Yann
https://supportforums.motorola.com/message/99025#99025
Last edited:
KZIWarrior
Silver Member
Better noise clarification. Are you familiar with the 'Jawbone' bluetooths? They (and potentially the Droid) use multiple input sources to figure out what is 'you' and what is outside noise. So it takes (or could take) sound from the mic near your mouth and the mic on the back (if that hole in the back is for the mic) and compare the two. Theoretically if the two are compared the software can get a better idea of what it's supposed to pass through. In practice though it's a bit more complicated butt that's the basic premise. The more input sources you have the more 'tuning' can be done to ensure only what is desired goes through. The Jawbone also has (or had, haven't used the new v3 yet) a sensor that senses the vibration of your jaw to determine when to turn the mics on and off and help decide what to pass through.
Note: I would tend to think that the hole in the back is more for a mic than for servicing. Most cases have this hole open (if fact the early Seidio cases did NOT and have since been redesigned so that it's open). So this tends to support that it serves some active purpose. If it was just to 'disable' the phone or for maintenance it wouldn't need to be open as the case would be coming off anyway.
DOH, took to long typing, lol, Triptych just posted the same thing above.