Re: [ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU
just let me follow-up that we can ship A7++ devices by end of the week. They are originals from factory and we have applied #1024 and Bass-Rework (Buzz-Rework is not required for A7 units). Please look at http://www.handheld-linux.com/wiki.php?page=Neo%20Freerunner BR, Nikolaus Am 18.03.2010 um 14:39 schrieb Dr. H. Nikolaus Schaller: Am 18.03.2010 um 13:41 schrieb Xavier Cremaschi: Is it possible to do bass-fix and 1024-fix on a device which had already been to Munchen to be buzz-fixed, or does it involve too many soldering operation to be reliable ? yes, no problem. All three reworks are done in very different areas of the device (Buzz is done at the Microphone; #1024 within the tin-can under the WLAN module and the Bass-Rework under the tin-can under the Bluetooth module). And therefore they can be done independently - or all together (which saves a lot of handling and shipment cost). And, they use professional equipment that does the least harm to the board that is possible. BR, Nikolaus Thanks for providing this service btw. Regards, Xavier. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU
Is it possible to do bass-fix and 1024-fix on a device which had already been to Munchen to be buzz-fixed, or does it involve too many soldering operation to be reliable ? Thanks for providing this service btw. Regards, Xavier. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU
Am 18.03.2010 um 13:41 schrieb Xavier Cremaschi: Is it possible to do bass-fix and 1024-fix on a device which had already been to Munchen to be buzz-fixed, or does it involve too many soldering operation to be reliable ? yes, no problem. All three reworks are done in very different areas of the device (Buzz is done at the Microphone; #1024 within the tin-can under the WLAN module and the Bass-Rework under the tin-can under the Bluetooth module). And therefore they can be done independently - or all together (which saves a lot of handling and shipment cost). And, they use professional equipment that does the least harm to the board that is possible. BR, Nikolaus Thanks for providing this service btw. Regards, Xavier. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
[ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU
Dear Freerunner owners in the EU harmonized market, a known problem of the Neo Freerunner design is that the headset output lacks some low frequency signals (bass). Thererfore music played through the headsets does not sound as expected and compared to other digital music players. There is an improvement rework by adding larger coupling capacitors to the output amplifier. This became known as the Bass Rework (http://wiki.openmoko.org/wiki/GTA02_bass_fix ). Although there is a description of a rework solution (http://people.openmoko.org/andy/additional-headset-audio-caps.pdf ) we do not expect that you can do it yourself and not in the required quality. Just a note what the problem is: we need 47 uF in 0805 dimensions and they are a little expensive and difficult to get and space is very close. Therefore, we have worked on a professional approach. With the help of a local SMD specialist company in Munich, we can now offer a rework service to those who want to improve audio quality. The price is 49 EUR (incl. German VAT) plus shipment. Details can be found at: http://www.handheld-linux.com/wiki.php?page=Bass-Rework Finally a note of caution: acoustic quality is very subjective so that we can't guarantee that the result is good enough for your expectations. We can only guarantee that there is a technical improvement. Nikolaus Schaller Some Pictures How the rework looks like: http://www.handheld-linux.com/images/Bass-Rework1.jpg Oscilloscope signals of a sine wave sweeping from 10 Hz to 100 Hz (for an original unit and for a reworked unit): http://www.handheld-linux.com/images/Bass-Rework2.jpg http://www.handheld-linux.com/images/Bass-Rework3.jpg Mobile Office Solutions by Golden Delicious Computers GmbHCo. KG Buchenstr. 3 D-82041 Oberhaching +49-89-54290367 http://www.handheld-linux.com AG München, HRA 89571 VAT DE253626266 Komplementär: Golden Delicious Computers Verwaltungs GmbH Oberhaching, AG München, HRB 16602 Geschäftsführer: Dr. Nikolaus Schaller Digital Tools for Independent People ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: [ANN] Bass-Rework = Headset Audio Quality Enhancement available in EU
On Sat, 2010-03-13 at 12:35 +0100, Dr. H. Nikolaus Schaller wrote: Dear Freerunner owners in the EU harmonized market, a known problem of the Neo Freerunner design is that the headset output lacks some low frequency signals (bass). Thererfore music played through the headsets does not sound as expected and compared to other digital music players. There is an improvement rework by adding larger coupling capacitors to the output amplifier. This became known as the Bass Rework (http://wiki.openmoko.org/wiki/GTA02_bass_fix ). Although there is a description of a rework solution (http://people.openmoko.org/andy/additional-headset-audio-caps.pdf ) we do not expect that you can do it yourself and not in the required quality. Just a note what the problem is: we need 47 uF in 0805 dimensions and they are a little expensive and difficult to get and space is very close. Therefore, we have worked on a professional approach. With the help of a local SMD specialist company in Munich, we can now offer a rework service to those who want to improve audio quality. The price is 49 EUR (incl. German VAT) plus shipment. [snip] Wow! Last night I was hoping the bass-fix would be made available as this is the last problem I have. Thank you! Benedikt ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
