Re: Background amplification and voice blur on phone call
On Thu, Jul 09, 2009 at 08:27:40PM +0400, Paul Fertser wrote: That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Basically it's assumed that some units have 1uF caps in place of R3004/R3005 (which should be 0R). R3004/R3005 are in the signal path to the earpiece speaker. If they are instead 1 uF capacitors, that will reduce the bass. If this hardware bug has been reintroduced on the A7 units, then that's sad. On the component placement diagram or the assembly silkscreen, you'll find them at the lower left or right corner of U3001. -- Rask Ingemann Lambertsen Danish law requires addresses in e-mail to be logged and stored for a year ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
RE: Background amplification and voice blur on phone call
Could you post your gsmstate file as well as instructions on how to get these calypso calls to launch automatically? Thanks in advance, -Dan Staley From: jeremy jozwik [jerjoz.for...@gmail.com] Sent: Sunday, July 12, 2009 1:51 PM To: List for Openmoko community discussion Subject: Re: Background amplification and voice blur on phone call ok, so there can only be one mode command or would i just copy it ti_calypso_dsp_mode = long-aec ti_calypso_dsp_mode = nr:6db ?? On Sun, Jul 12, 2009 at 10:44 AM, Paul Fertserfercer...@gmail.com wrote: jeremy jozwik jerjoz.for...@gmail.com writes: can you format that in context? how would i integrate that into the frameworkd file? Hm, ... [ogsmd] ... ti_calypso_dsp_mode = long-aec ... etc. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
On Sat, Jul 11, 2009 at 8:02 PM, jeremy jozwikjerjoz.for...@gmail.com wrote: finally got some time to mess around with the moko. everything is clear as a bell now. thanks everyone for there help in tracking down the demons. - jeremy jeremy: could you please let us know the settings you're using. Did you change any of the AT settings? r -- | risto h. kurppa | risto at kurppa dot fi | http://risto.kurppa.fi ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
the setting are on my openmoko wiki page: http://wiki.openmoko.org/wiki/User:Jerjozwik some AT commands were used On Sun, Jul 12, 2009 at 8:16 AM, Risto H. Kurppari...@kurppa.fi wrote: On Sat, Jul 11, 2009 at 8:02 PM, jeremy jozwikjerjoz.for...@gmail.com wrote: finally got some time to mess around with the moko. everything is clear as a bell now. thanks everyone for there help in tracking down the demons. - jeremy jeremy: could you please let us know the settings you're using. Did you change any of the AT settings? r -- | risto h. kurppa | risto at kurppa dot fi | http://risto.kurppa.fi ___ 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: Background amplification and voice blur on phone call
jeremy jozwik jerjoz.for...@gmail.com writes: the setting are on my openmoko wiki page: http://wiki.openmoko.org/wiki/User:Jerjozwik some AT commands were used Instead of using AT commands directly i recommend to use the corresponding frameworkd setting, it's ti_calypso_dsp_mode in [ogsmd] section, possible values are: short-aec:0083, long-aec: 0283, long-aec:6db: 028B, long-aec:12db:0293, long-aec:18db:029B, nr: 0105, nr:6db: 0125, nr:12db: 0145, nr:18db: 0165, aec+nr: 0187, none: 0001, http://git.freesmartphone.org/?p=framework.git;a=blob;f=framework/subsystems/ogsmd/modems/ti_calypso/channel.py;hb=HEAD -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
jeremy jozwik jerjoz.for...@gmail.com writes: can you format that in context? how would i integrate that into the frameworkd file? Hm, ... [ogsmd] ... ti_calypso_dsp_mode = long-aec ... etc. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
ok, so there can only be one mode command or would i just copy it ti_calypso_dsp_mode = long-aec ti_calypso_dsp_mode = nr:6db ?? On Sun, Jul 12, 2009 at 10:44 AM, Paul Fertserfercer...@gmail.com wrote: jeremy jozwik jerjoz.for...@gmail.com writes: can you format that in context? how would i integrate that into the frameworkd file? Hm, ... [ogsmd] ... ti_calypso_dsp_mode = long-aec ... etc. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
jeremy jozwik jerjoz.for...@gmail.com writes: ok, so there can only be one mode command or would i just copy it ti_calypso_dsp_mode = long-aec ti_calypso_dsp_mode = nr:6db Choose the one and only one from the list i posted. You should be able to find there an entry that corresponds to your preferred configuration. FYI i don't feel like answering mails with top-posting any further :-/ -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
finally got some time to mess around with the moko. everything is clear as a bell now. thanks everyone for there help in tracking down the demons. - jeremy On Fri, Jul 10, 2009 at 8:24 AM, Staley, Daniel Ldlst...@uky.edu wrote: Im hosting a copy of the file at: http://www.bufferunderflow.com/diff_a7_openwrt -Dan Staley From: tb [bumbl...@gmail.com] Sent: Friday, July 10, 2009 9:53 AM To: List for Openmoko community discussion Subject: Re: Background amplification and voice blur on phone call Could you upload the diff somewhere else? http://rapidshare.com/files/253813548/diff_a7_openwrt.html This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times. This limit is reached. To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information. Thank you 2009/7/9 Paul Fertser fercer...@gmail.commailto:fercer...@gmail.com David Garabana Barro da...@garabana.commailto:da...@garabana.com writes: [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Please, could you explain or provide a link about the difference between a cap and a capless Neo? I think it's the first time I hear about it... Nobody can explain that :) Basically it's assumed that some units have 1uF caps in place of R3004/R3005 (which should be 0R). -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.commailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.orgmailto: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: Background amplification and voice blur on phone call
Could you upload the diff somewhere else? http://rapidshare.com/files/253813548/diff_a7_openwrt.html This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times. This limit is reached. To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information. Thank you 2009/7/9 Paul Fertser fercer...@gmail.com David Garabana Barro da...@garabana.com writes: [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Please, could you explain or provide a link about the difference between a cap and a capless Neo? I think it's the first time I hear about it... Nobody can explain that :) Basically it's assumed that some units have 1uF caps in place of R3004/R3005 (which should be 0R). -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ 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: Background amplification and voice blur on phone call
Im hosting a copy of the file at: http://www.bufferunderflow.com/diff_a7_openwrt -Dan Staley From: tb [bumbl...@gmail.com] Sent: Friday, July 10, 2009 9:53 AM To: List for Openmoko community discussion Subject: Re: Background amplification and voice blur on phone call Could you upload the diff somewhere else? http://rapidshare.com/files/253813548/diff_a7_openwrt.html This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times. This limit is reached. To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information. Thank you 2009/7/9 Paul Fertser fercer...@gmail.commailto:fercer...@gmail.com David Garabana Barro da...@garabana.commailto:da...@garabana.com writes: [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Please, could you explain or provide a link about the difference between a cap and a capless Neo? I think it's the first time I hear about it... Nobody can explain that :) Basically it's assumed that some units have 1uF caps in place of R3004/R3005 (which should be 0R). -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.commailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.orgmailto: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: Background amplification and voice blur on phone call (tb)
On Wednesday 08 July 2009 10:07:15 pm jeremy jozwik wrote: Hi, I'm running the latest Intone from the shr feeds intone - 0.0.1+svnr22-r7 - and when I tried to run it it has a segmentation fault, is there anything different between the version in the feed and the one on opkg.org or is it basically the same version? Can you try deleting your songs db at /home/root/.intone/intone-songs.db ? Post if you still have problems. I'm sorry. Now you can look here: http://forum.telefoninux.org/index.php?action=dlattach;topic=1664.0;attach=328 I hope it will last a longer time. Bye -- /_\ The ASCII Per comunicare in modo riservato: \_/ Ribbon Campaign gpg --keyserver pool.sks-keyservers.net \ X Against HTML--recv-keys 20611EAD /_\ Email! -- Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
Shashank Bharadwaj wrote: Hi list, I created a new topic cause I think this question is slightly different from the one being discussed in the Rustling noise on phonecalls thread. Well I just installed OM2009 (and updated via opkg update opkg upgrade) and then tested on paroli on a call. Weird thing happened. The background sounds (like of the traffic, keyboard strokes or somebody else far off talking) are highly amplified. But my own voice is highly marred with noise. My voice sounds like it's being mixed by a dj to produce a kind of recursive-echo effect! Any ideas? Too much microphone gain explains all of this. That's why background noise gets amplified too much. Your voice may get too loud and ruined by saturation. If your voice comes back through the loudspeaker (or a nearby test-phone's loudspeaker) then the overly sensitive mic pics it up again and you get echoes too. Helge Hafting ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
OK, here is solution which worked for me. I have reminded that lately i was testing OpenWrt distro. Thus i have extracted /usr/share/openmoko/scenarios/*.state files from 20090706_r16709_1_openwrt-s3c24xx-rootfs.tgz and uploaded those into OM2009t5. Works like a charm :). -- Kind Regards Patryk Benderz IT Specialist Linux Registered User #377521 +48 22 538 6292 ERSTE Securities Polska S.A. ul. Królewska 16 Warszawa 00-103 KRS 065121 NIP 526-10-27-638 REGON 011136053 Kapitał akcyjny: 15.500.000 złotych (w pełni opłacony) This message and any attached files are confidential and intended solely for the addressee(s). Any publication, transmission or other use of the information by a person or entity other than the intended addressee is prohibited. If you receive this in error please contact the sender and delete the material. The sender does not accept liability for any errors or omissions as a result of the transmission. Email secured by Check Point ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
Could you post the files somewhere / run a diff to see what's different there than in http://docs.openmoko.org/trac/raw-attachment/ticket/2121/gsmhandset.state.new-O Thanks! r -- | risto h. kurppa | risto at kurppa dot fi | http://risto.kurppa.fi ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
Could you post the files somewhere / run a diff to see what's different there than in http://docs.openmoko.org/trac/raw-attachment/ticket/2121/gsmhandset.state.new-O Here is the diff-file. http://rapidshare.com/files/253813548/diff_a7_openwrt.html -- /_\ The ASCII Per comunicare in modo riservato: \_/ Ribbon Campaign gpg --keyserver pool.sks-keyservers.net \ X Against HTML--recv-keys 20611EAD /_\ Email! -- Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
ok, ive got my gsmhandset.state mono value at 2 now. place call freerunner [a] to nokia [b] [b] signal is super loud, which is odd because i would think it would be very quiet. and it sounds as if the freerunner is recording in a pvc pipe. played around with some of the mickeyterm settings, specifically: I run with AT+CLVL=255 and never heard distortion (except when i tried A7-state file). I think all GSM networks normalize the signal so i'd experience it if it was possible. and the Echo Suppression and Noise Reduction from http://wiki.openmoko.org/wiki/Hardware:AT_Commands still not having any luck. though it does seem better then turning off echo noise all together On Thu, Jul 9, 2009 at 7:19 AM, giacomo giotti marianigiacomomari...@yahoo.it wrote: Could you post the files somewhere / run a diff to see what's different there than in http://docs.openmoko.org/trac/raw-attachment/ticket/2121/gsmhandset.state.new-O Here is the diff-file. http://rapidshare.com/files/253813548/diff_a7_openwrt.html -- /_\ The ASCII Per comunicare in modo riservato: \_/ Ribbon Campaign gpg --keyserver pool.sks-keyservers.net \ X Against HTML--recv-keys 20611EAD /_\ Email! -- Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html ___ 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: Background amplification and voice blur on phone call
jeremy jozwik jerjoz.for...@gmail.com writes: ok, ive got my gsmhandset.state mono value at 2 now. place call freerunner [a] to nokia [b] I hope you know about the pretty diagram with alsa control names [1] (yes, it's for gta02). I suggest you look at it once more and tweak appropriate settings with alsamixer during the call. [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) and it sounds as if the freerunner is recording in a pvc pipe. Please pay attention that you have 2 (almost) independent problems to solve: 1. Hearing the other side 2. Providing the other side a good signal from the mic I suggest you do it one by one. and the Echo Suppression and Noise Reduction from http://wiki.openmoko.org/wiki/Hardware:AT_Commands These commands have an immediate effect, you can use them in mickeyterm while a call is ongoing to change the behaviour. In my experience what they do is cut the signal altogether if the level is too low (that is, to not amplificate ambient noise/street sounds/whatever) and normalize sounds of normal level. So basically you need to tweak the recording level so that noise is still considered noise and cut and your voice is considered a useful signal and normalized. And yes, %0187 makes voice sound a little bit harsh, that's a price for the echo suppression. Also the louder your earpiece, the more echo suppression is needed. If you feel creative, you can try to make some rubber isolation between the case parts because echo occures because of the acoustic feedback via the case. Removing the screwes also reduces echo. CLVL affects only loudness of the signal output from calypso to the codec input. [1] http://wiki.openmoko.org/wiki/Neo_1973_audio_subsystem -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
On Thursday 09 July 2009 18:02:31 Paul Fertser wrote: [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Please, could you explain or provide a link about the difference between a cap and a capless Neo? I think it's the first time I hear about it... Thank you very much ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
David Garabana Barro da...@garabana.com writes: [b] signal is super loud, which is odd because i would think it would be very quiet. That's the difference you see between extra-cap units and not. Supposedly you have a capless unit and is using too much amplification for the earpiece in the codec. (FYI nobody knows for sure and there's no way to know which units have those stupid caps and which do not. Looks like all A7 units have them, as probably most of A5; my A6 doesn't) Please, could you explain or provide a link about the difference between a cap and a capless Neo? I think it's the first time I hear about it... Nobody can explain that :) Basically it's assumed that some units have 1uF caps in place of R3004/R3005 (which should be 0R). -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Background amplification and voice blur on phone call
Hi list, I created a new topic cause I think this question is slightly different from the one being discussed in the Rustling noise on phonecalls thread. Well I just installed OM2009 (and updated via opkg update opkg upgrade) and then tested on paroli on a call. Weird thing happened. The background sounds (like of the traffic, keyboard strokes or somebody else far off talking) are highly amplified. But my own voice is highly marred with noise. My voice sounds like it's being mixed by a dj to produce a kind of recursive-echo effect! Then I tried with the latest QtMoko Images. (QtMoko v3 based on FSO from http://dashi-x02.karadog.net/~lihouyu/qtmoko/snapbuild/20090707/ ). It had the same issue too. Then I tried wiki, [1] says: wget http://docs.openmoko.org/trac/raw-attachment/ticket/2121/gsmhandset.state.new -O /usr/share/openmoko/scenarios/gsmhandset.state should help. I tried. It didn't. Any ideas? Footnotes: 1. http://wiki.openmoko.org/wiki/Om2009#Audio_quality_during_call -- Regards Shashank As our circle of knowledge expands, so does the circumference of darkness surrounding it - Albert Einstein ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
I have exactly the same issues with OM2009t5. Changing gsmhandstate to gsmhandstate.new neither helped. Now i am trying to adjust sound using Angus Ainslie's python script: http://wiki.openmoko.org/wiki/Neo_Freerunner_audio_subsystem (bottom of the page) but no satisfying results for now. I have also noticed on my side there is some kind of silent but disturbing noise - i can't even define it in my native language, but i will try. It sounds the same as Trafo stations sounds make (50Hz in EU) but on lower frequency and variable frequency. You can hear similar sound also under high voltage transmission lines - especially when it rains. This sound occurs even before a person which I am calling to, picks up the phone. -- Kind Regards Patryk Benderz IT Specialist Linux Registered User #377521 +48 22 538 6292 ERSTE Securities Polska S.A. ul. Królewska 16 Warszawa 00-103 KRS 065121 NIP 526-10-27-638 REGON 011136053 Kapitał akcyjny: 15.500.000 złotych (w pełni opłacony) This message and any attached files are confidential and intended solely for the addressee(s). Any publication, transmission or other use of the information by a person or entity other than the intended addressee is prohibited. If you receive this in error please contact the sender and delete the material. The sender does not accept liability for any errors or omissions as a result of the transmission. Email secured by Check Point ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Background amplification and voice blur on phone call
also have this since owning the phone. i thought my issue falls into the rustling noise, but background amplification seems more like the proper term. om2008.12, shr-testing, shr-unstable ive had complaints about it on all of these On Wed, Jul 8, 2009 at 9:27 AM, Patryk Benderzpatryk.bend...@esp.pl wrote: I have exactly the same issues with OM2009t5. Changing gsmhandstate to gsmhandstate.new neither helped. Now i am trying to adjust sound using Angus Ainslie's python script: http://wiki.openmoko.org/wiki/Neo_Freerunner_audio_subsystem (bottom of the page) but no satisfying results for now. I have also noticed on my side there is some kind of silent but disturbing noise - i can't even define it in my native language, but i will try. It sounds the same as Trafo stations sounds make (50Hz in EU) but on lower frequency and variable frequency. You can hear similar sound also under high voltage transmission lines - especially when it rains. This sound occurs even before a person which I am calling to, picks up the phone. -- Kind Regards Patryk Benderz IT Specialist Linux Registered User #377521 +48 22 538 6292 ERSTE Securities Polska S.A. ul. Królewska 16 Warszawa 00-103 KRS 065121 NIP 526-10-27-638 REGON 011136053 Kapitał akcyjny: 15.500.000 złotych (w pełni opłacony) This message and any attached files are confidential and intended solely for the addressee(s). Any publication, transmission or other use of the information by a person or entity other than the intended addressee is prohibited. If you receive this in error please contact the sender and delete the material. The sender does not accept liability for any errors or omissions as a result of the transmission. Email secured by Check Point ___ 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: Background amplification and voice blur on phone call
om2009t5 and the same issue here. I had a discussion about it at #openmoko(-cdevel), here's the log Jun 17 23:51:10 rhkfin DocScrutinizer: The echo doesn't to seem to be stable: during one call it sometimes echoes sometimes doesn't (when I'm quiet and the other end talks). To me it sounds like the noise gate doesn't work fully but the background noise (be it the voice of the other person or background noise like bus, computer fan, whatever) is amplified a lot.. Jun 17 23:52:23 DocScrutinizer hmmm, so maybe reducing control.5 a few units may help a lot then Jun 17 23:52:56 DocScrutinizer also I'm not quite sure OM2009 handles AT%N correctly Jun 17 23:53:49 rhkfin the echo reduction? Hmm.. I really hope it doesn't and when it's fixed things get easier.. I'll ask nytowl later.. Jun 17 23:53:51 DocScrutinizer and if OM2009 has borked statefiles, everything may happen, even feedback inside mixer Jun 17 23:54:15 rhkfin DocScrutinizer: I'm using the -new (-based I've tried to fix further a bit myself) Jun 17 23:55:51 DocScrutinizer aah, ok. Then just reduce control.5 until you get decent sensitivity for far end hearing you loud but without ambient noise penetrating noisegate Jun 17 23:55:53 rhkfin DocScrutinizer: Do you think the -new statefile should work for all FR's or are there small differencies in the component values that cause the need for a little tuning for each unit? (well, depends on the operator etc... Hmm.. ) Jun 17 23:56:42 DocScrutinizer rhkfin: for sure you need to adjust according to your particular buzzfix situation Jun 17 23:56:59 rhkfin 'mono playback volume' is the volume of signal from my microphone sent to calypso? Jun 17 23:57:14 DocScrutinizer *sigh* mompl Jun 17 23:57:27 DocScrutinizer numid=5,iface=MIXER,name='Mono Playback Volume' Jun 17 23:57:32 rhkfin yes Jun 17 23:59:32 DocScrutinizer during call open amixer, adjust mono pl.b. vol, then do a `alsactl store .../gsmhandset.state` Jun 17 23:59:45 DocScrutinizer *then* finish call Jun 18 00:00:23 DocScrutinizer probably you prefer to do this from a decent PC via ssh Jun 18 00:00:33 rhkfin yes, understand and can do that, just want to understand the behaviour.. Jun 18 00:01:14 rhkfin mono playb. vol is the signal that I hear from my speaker, isn't it? Jun 18 00:01:39 DocScrutinizer alternatively write a script you call in FR terminal that does the amixer invocation and after amixwer returns does the alsactl store thingie automatically Jun 18 00:01:54 rhkfin reducing it reduces the changes of the mic picking up the signal - but also at the same time makes it harder for me to hear the other end? Jun 18 00:02:10 DocScrutinizer rhkfin: nope, control.5 is mixer-to-gsmMicInput Jun 18 00:02:19 rhkfin oh, ok.. Jun 18 00:02:46 DocScrutinizer it's the sensitivity of your handsets microphone Jun 18 00:03:02 rhkfin ok, understand. Now it makes sense. Jun 18 00:03:17 rhkfin How can I play with the gate level? Jun 18 00:03:46 DocScrutinizer see wiki for description of AT%N valid numeric arguments Jun 18 00:04:02 rhkfin so the gate is in calypso, not alsa. ok Jun 18 00:04:03 DocScrutinizer sorry no pointer ATM, you have to search for it Jun 18 00:04:15 rhkfin np Jun 18 00:04:20 DocScrutinizer yup, gate and echo cancellation in modem Jun 18 00:04:36 rhkfin ok, got it.. Jun 18 00:04:54 rhkfin Thanks for this, let's see if i'd be able to improve it a bit again.. Jun 18 00:05:13 DocScrutinizer mixer is a simple preamp for mic from modems POV Jun 18 00:06:13 rhkfin This is the one, I guess: http://wiki.openmoko.org/wiki/Hardware:AT_Commands#Echo_Suppression_and_Noise_Reduction Jun 18 00:06:44 DocScrutinizer yup, exactly Jun 18 00:06:57 rhkfin what's short long AEC? Jun 18 00:07:08 DocScrutinizer I think it's n some of FSOs config-files Jun 18 00:08:04 DocScrutinizer I guess it'S about signal delay from output to input, I.E. how long the sound needs thru the air from speaker to mic Jun 18 00:08:31 DocScrutinizer not sure about that though, mere guess Jun 18 00:08:37 rhkfin ok.. Jun 18 00:09:23 DocScrutinizer might as well be sth about how long it takes the AEC to recalibrate from silence to voice and back Jun 18 00:11:04 rhkfin and noise cancellation is the gate? Jun 18 00:11:07 DocScrutinizer rhkfin: check mailing lists, there has to be a better more comprehensive explanation of AT%N Jun 18 00:11:14 DocScrutinizer yup, Jun 18 00:11:31 rhkfin ok, thanks for the pointerst! Jun 18 00:11:41 DocScrutinizer the dB value is probably the level where it kicks in Jun 18 00:11:51 rhkfin right Jun 18 00:12:41 DocScrutinizer be aware there's lots of confusion about exact semantics of AT%N Jun 18 00:13:28 rhkfin ok.. I'll try to find my way through the nasty poisonous AT-spikes shot at me from the Fortress of Calypso.. Jun 18 00:13:50 DocScrutinizer I even seen statements these commands are accumulative, like AT%N293; AT%N105 Jun 18 00:15:22 rhkfin long AEC -12dB and nose reducion is active.. Jun 18 00:19:27 DocScrutinizer mompl, started search across *all* my
Re: Background amplification and voice blur on phone call
thats a might big log youve got there... On Wed, Jul 8, 2009 at 12:57 PM, Risto H. Kurppari...@kurppa.fi wrote: om2009t5 and the same issue here. I had a discussion about it at #openmoko(-cdevel), here's the log Jun 17 23:51:10 rhkfin DocScrutinizer: The echo doesn't to seem to be stable: during one call it sometimes echoes sometimes doesn't (when I'm quiet and the other end talks). To me it sounds like the noise gate doesn't work fully but the background noise (be it the voice of the other person or background noise like bus, computer fan, whatever) is amplified a lot.. Jun 17 23:52:23 DocScrutinizer hmmm, so maybe reducing control.5 a few units may help a lot then Jun 17 23:52:56 DocScrutinizer also I'm not quite sure OM2009 handles AT%N correctly Jun 17 23:53:49 rhkfin the echo reduction? Hmm.. I really hope it doesn't and when it's fixed things get easier.. I'll ask nytowl later.. Jun 17 23:53:51 DocScrutinizer and if OM2009 has borked statefiles, everything may happen, even feedback inside mixer Jun 17 23:54:15 rhkfin DocScrutinizer: I'm using the -new (-based I've tried to fix further a bit myself) Jun 17 23:55:51 DocScrutinizer aah, ok. Then just reduce control.5 until you get decent sensitivity for far end hearing you loud but without ambient noise penetrating noisegate Jun 17 23:55:53 rhkfin DocScrutinizer: Do you think the -new statefile should work for all FR's or are there small differencies in the component values that cause the need for a little tuning for each unit? (well, depends on the operator etc... Hmm.. ) Jun 17 23:56:42 DocScrutinizer rhkfin: for sure you need to adjust according to your particular buzzfix situation Jun 17 23:56:59 rhkfin 'mono playback volume' is the volume of signal from my microphone sent to calypso? Jun 17 23:57:14 DocScrutinizer *sigh* mompl Jun 17 23:57:27 DocScrutinizer numid=5,iface=MIXER,name='Mono Playback Volume' Jun 17 23:57:32 rhkfin yes Jun 17 23:59:32 DocScrutinizer during call open amixer, adjust mono pl.b. vol, then do a `alsactl store .../gsmhandset.state` Jun 17 23:59:45 DocScrutinizer *then* finish call Jun 18 00:00:23 DocScrutinizer probably you prefer to do this from a decent PC via ssh Jun 18 00:00:33 rhkfin yes, understand and can do that, just want to understand the behaviour.. Jun 18 00:01:14 rhkfin mono playb. vol is the signal that I hear from my speaker, isn't it? Jun 18 00:01:39 DocScrutinizer alternatively write a script you call in FR terminal that does the amixer invocation and after amixwer returns does the alsactl store thingie automatically Jun 18 00:01:54 rhkfin reducing it reduces the changes of the mic picking up the signal - but also at the same time makes it harder for me to hear the other end? Jun 18 00:02:10 DocScrutinizer rhkfin: nope, control.5 is mixer-to-gsmMicInput Jun 18 00:02:19 rhkfin oh, ok.. Jun 18 00:02:46 DocScrutinizer it's the sensitivity of your handsets microphone Jun 18 00:03:02 rhkfin ok, understand. Now it makes sense. Jun 18 00:03:17 rhkfin How can I play with the gate level? Jun 18 00:03:46 DocScrutinizer see wiki for description of AT%N valid numeric arguments Jun 18 00:04:02 rhkfin so the gate is in calypso, not alsa. ok Jun 18 00:04:03 DocScrutinizer sorry no pointer ATM, you have to search for it Jun 18 00:04:15 rhkfin np Jun 18 00:04:20 DocScrutinizer yup, gate and echo cancellation in modem Jun 18 00:04:36 rhkfin ok, got it.. Jun 18 00:04:54 rhkfin Thanks for this, let's see if i'd be able to improve it a bit again.. Jun 18 00:05:13 DocScrutinizer mixer is a simple preamp for mic from modems POV Jun 18 00:06:13 rhkfin This is the one, I guess: http://wiki.openmoko.org/wiki/Hardware:AT_Commands#Echo_Suppression_and_Noise_Reduction Jun 18 00:06:44 DocScrutinizer yup, exactly Jun 18 00:06:57 rhkfin what's short long AEC? Jun 18 00:07:08 DocScrutinizer I think it's n some of FSOs config-files Jun 18 00:08:04 DocScrutinizer I guess it'S about signal delay from output to input, I.E. how long the sound needs thru the air from speaker to mic Jun 18 00:08:31 DocScrutinizer not sure about that though, mere guess Jun 18 00:08:37 rhkfin ok.. Jun 18 00:09:23 DocScrutinizer might as well be sth about how long it takes the AEC to recalibrate from silence to voice and back Jun 18 00:11:04 rhkfin and noise cancellation is the gate? Jun 18 00:11:07 DocScrutinizer rhkfin: check mailing lists, there has to be a better more comprehensive explanation of AT%N Jun 18 00:11:14 DocScrutinizer yup, Jun 18 00:11:31 rhkfin ok, thanks for the pointerst! Jun 18 00:11:41 DocScrutinizer the dB value is probably the level where it kicks in Jun 18 00:11:51 rhkfin right Jun 18 00:12:41 DocScrutinizer be aware there's lots of confusion about exact semantics of AT%N Jun 18 00:13:28 rhkfin ok.. I'll try to find my way through the nasty poisonous AT-spikes shot at me from the Fortress of Calypso.. Jun 18 00:13:50 DocScrutinizer I even
Re: Background amplification and voice blur on phone call
On Wed, Jul 8, 2009 at 11:02 PM, jeremy jozwikjerjoz.for...@gmail.com wrote: thats a might big log youve got there... And I believe it has the required background information to play around with the settings and try to solve this problem.. Let us know if someone finds out something new.. r -- | risto h. kurppa | risto at kurppa dot fi | http://risto.kurppa.fi ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
