Re: Audio path gain, was: Re: Bluetooth module

2011-02-07 Thread Martix
Did you really meant bass fix? http://wiki.openmoko.org/wiki/GTA02_bass_fix Or buzz fix: http://wiki.openmoko.org/wiki/Buzz_Fix ? 2011/2/6 Hrabosh zbyne...@volny.cz: I was doing bass-fix to my Freerunner today so I did the the same measurement with generator again. I run Voice notes and set

Re: Audio path gain, was: Re: Bluetooth module

2011-02-07 Thread Hrabosh
Yes, I really meant bass fix. I have replaced each 1uF cap with 2x 47uF caps in parallel. They are isolated by heat-shrinking tube and everything even fit under the metal cover. It really helped a lot, no problem using my FR as portable player now. I have taken some pictures ... anyone

Re: Audio path gain, was: Re: Bluetooth module

2011-02-06 Thread Hrabosh
Al Johnson píše v Pá 04. 02. 2011 v 13:46 +: How did you pick 0.5mV as a suitable input amplitude? Measurement of peaks when talking? It was completely wrong! I did some internet search and found that micropohone like that in FR usually produce signal with amplitude in tens of mV. I

Re: Audio path gain, was: Re: Bluetooth module

2011-02-04 Thread Al Johnson
On Sunday 23 January 2011, Hrabosh wrote: Al Johnson píše v Pá 21. 01. 2011 v 10:34 +: On Friday 21 January 2011, Hrabosh wrote: Hi guys, yesterday I opened my freerunner to check whether mine FR is affected by R3004 issue [1]. It was, I put a piece of wire there instead

Audio path gain, was: Re: Bluetooth module

2011-02-03 Thread Hrabosh
Al Johnson píše v Pá 21. 01. 2011 v 10:34 +: On Friday 21 January 2011, Hrabosh wrote: Hi guys, yesterday I opened my freerunner to check whether mine FR is affected by R3004 issue [1]. It was, I put a piece of wire there instead of those two caps and volume got better! I