http://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&feed=atom&action=historyTalk:Neo Freerunner audio subsystem - Revision history2024-03-29T12:34:00ZRevision history for this page on the wikiMediaWiki 1.19.24http://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=80403&oldid=prevJOERG: /* Empirical Data for Mic Settings */2010-03-19T17:03:53Z<p><span dir="auto"><span class="autocomment">Empirical Data for Mic Settings</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>I'm so tired to read reports following the scheme "Car's motor didn't start. After fiddling with almost any of the 90 adjustment dials in carburator and ignition and 7 other domains, I finaly found it started when I used a grip to turn the key". Two days later we have to deal with user B, C and D wining "I tried the 'turn key' method. Doesn't work for my car :-(( (even took a hammer to adjust some random dials)". And probably 2 app devels nagging kernel devels about "I implemented proven good turn-key sound improvement method. User said fails for him. FIX THAT!"</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>I'm so tired to read reports following the scheme "Car's motor didn't start. After fiddling with almost any of the 90 adjustment dials in carburator and ignition and 7 other domains, I finaly found it started when I used a grip to turn the key". Two days later we have to deal with user B, C and D wining "I tried the 'turn key' method. Doesn't work for my car :-(( (even took a hammer to adjust some random dials)". And probably 2 app devels nagging kernel devels about "I implemented proven good turn-key sound improvement method. User said fails for him. FIX THAT!"</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Once again: left/right PGA *might* work (as well), but it's introducing 10 unknown variables to the whole process, and there's absolutely NOTHING that couldn't be done _the right way_ as well, rather than by random switching of dials</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Once again: left/right PGA *might* work (as well), but it's introducing 10 unknown variables to the whole process<ins class="diffchange diffchange-inline">, which are set "correctly" by mere incidence *if* it works for you</ins>, and there's absolutely NOTHING that couldn't be done _the right way_ as well, rather than by random switching of dials</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>  *SIGH*</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>  *SIGH*</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>2010-03-19 17:49 jOERG</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>2010-03-19 17:49 jOERG</div></td></tr>
</table>JOERGhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=80402&oldid=prevJOERG: /* Empirical Data for Mic Settings */2010-03-19T16:58:04Z<p><span dir="auto"><span class="autocomment">Empirical Data for Mic Settings</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Wouldn't it be better to insert previous settings into the table, instead of just saying "it's better now"? --[[User:Fabian Schölzel|Fabian Schölzel]] 16:55, 17 March 2010 (UTC)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Wouldn't it be better to insert previous settings into the table, instead of just saying "it's better now"? --[[User:Fabian Schölzel|Fabian Schölzel]] 16:55, 17 March 2010 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>: Never mind, thats what "Microphone Settings in Use" is for. --[[User:Fabian Schölzel|Fabian Schölzel]] 16:58, 17 March 2010 (UTC)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>: Never mind, thats what "Microphone Settings in Use" is for. --[[User:Fabian Schölzel|Fabian Schölzel]] 16:58, 17 March 2010 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">I'm so tired to read reports following the scheme "Car's motor didn't start. After fiddling with almost any of the 90 adjustment dials in carburator and ignition and 7 other domains, I finaly found it started when I used a grip to turn the key". Two days later we have to deal with user B, C and D wining "I tried the 'turn key' method. Doesn't work for my car :-(( (even took a hammer to adjust some random dials)". And probably 2 app devels nagging kernel devels about "I implemented proven good turn-key sound improvement method. User said fails for him. FIX THAT!"</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Once again: left/right PGA *might* work (as well), but it's introducing 10 unknown variables to the whole process, and there's absolutely NOTHING that couldn't be done _the right way_ as well, rather than by random switching of dials</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> *SIGH*</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">2010-03-19 17:49 jOERG</ins></div></td></tr>
</table>JOERGhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=80360&oldid=prevFabian Schölzel: /* Empirical Data for Mic Settings */2010-03-17T16:58:01Z<p><span dir="auto"><span class="autocomment">Empirical Data for Mic Settings</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Wouldn't it be better to insert previous settings into the table, instead of just saying "it's better now"? --[[User:Fabian Schölzel|Fabian Schölzel]] 16:55, 17 March 2010 (UTC)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Wouldn't it be better to insert previous settings into the table, instead of just saying "it's better now"? --[[User:Fabian Schölzel|Fabian Schölzel]] 16:55, 17 March 2010 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">: Never mind, thats what "Microphone Settings in Use" is for. --[[User:Fabian Schölzel|Fabian Schölzel]] 16:58, 17 March 2010 (UTC)</ins></div></td></tr>
</table>Fabian Schölzelhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=80359&oldid=prevFabian Schölzel: /* Empirical Data for Mic Settings */ new section2010-03-17T16:55:02Z<p><span dir="auto"><span class="autocomment">Empirical Data for Mic Settings: </span> new section</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The loud static is the result of an overloaded amp stage somewhere in the chain. Routing through the PGA will reduce the signal slightly, reducing the distortion or removing it. The problem is probably occurring in the mono mixer as the default setting (7) has +6dB gain. Reducing it to 5 should help as it will then have no gain.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The loud static is the result of an overloaded amp stage somewhere in the chain. Routing through the PGA will reduce the signal slightly, reducing the distortion or removing it. The problem is probably occurring in the mono mixer as the default setting (7) has +6dB gain. Reducing it to 5 should help as it will then have no gain.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Empirical Data for Mic Settings ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Wouldn't it be better to insert previous settings into the table, instead of just saying "it's better now"? --[[User:Fabian Schölzel|Fabian Schölzel]] 16:55, 17 March 2010 (UTC)</ins></div></td></tr>
</table>Fabian Schölzelhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=79441&oldid=prevMazikeen: /* it's not buzz fix, is being clearly heard on the other side */2010-02-09T00:06:01Z<p><span dir="auto"><span class="autocomment">it's not buzz fix, is being clearly heard on the other side</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>There may be better solutions, but while they are not found, can we at least provide a working sound setting?</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>There may be better solutions, but while they are not found, can we at least provide a working sound setting?</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== You're 'fixing' clipping in the mono mixer ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">The loud static is the result of an overloaded amp stage somewhere in the chain. Routing through the PGA will reduce the signal slightly, reducing the distortion or removing it. The problem is probably occurring in the mono mixer as the default setting (7) has +6dB gain. Reducing it to 5 should help as it will then have no gain.</ins></div></td></tr>
</table>Mazikeenhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=77886&oldid=prevRuiSeabra: /* it's not buzz fix, is being clearly heard on the other side */ new section2009-12-02T10:07:23Z<p><span dir="auto"><span class="autocomment">it's not buzz fix, is being clearly heard on the other side: </span> new section</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>2009-12-01 [[User:JOERG|jOERG--Openmoko HW development and synergy]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>2009-12-01 [[User:JOERG|jOERG--Openmoko HW development and synergy]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== it's not buzz fix, is being clearly heard on the other side ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">This is not buzz related (my phone has the buzz fix).</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"># With Mic2:</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">## Calling myself from a Nokia phone has loud static, and background noise can easily make it hard for remote end to hear me correctly</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"># With Left or Right PGA</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">## Calling myself from a Nokia phone has almos no static at all, and background noise is dampened enough so that even at a noisy restaurant the remote end could hear me about as normally as with any other phone</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">With no electricity or sound engineering background, I can't explain this other than in these terms:</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"># Mic2 == awfull sound on remote end</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"># Left|Right PGA == normal sound on remote end</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">There may be better solutions, but while they are not found, can we at least provide a working sound setting?</ins></div></td></tr>
</table>RuiSeabrahttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=77838&oldid=prevJOERG: 2009-12-012009-12-01T16:41:12Z<p>2009-12-01</p>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[User:RuiSeabra]] said:</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">#* State: GSM <-> Built-in Handset (file gsmhandset.state) </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">##* Mic volume:</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">...</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">##* Control 63: 'Mic Sidetone Mux' MANDATORY VALUE "Mic 2"!!!</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">###* [[User:RuiSeabra]]'s GTA02v5 with buzz fix has horrible static with this value, but using either "Left PGA" or "Right PGA" works very well.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">That's very interesting, but - as elaborated to Rui in IRC - doesn't mean much as buzz isn't related to using PGA. Rather using PGA "detunes" the overall setup of mic path, by introducing several new parameters (PGA controls in digital domain of mixer), which Rui hasn't looked at, taken into account, or even finally listed all the relevant settings' values here. Furthermore there's nothing (except AGC, which is considered contraproductive for calypso's NR&AEC, and very unlikely Rui had a working setup for AGC by mere incident) you could implement by using a routing via PGA, rather than just adjusting #5 (#48, #12. In that precedence) to compensate for pathgain changes done by PGA. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Finally buzz is basically completely unrelated to PGA (if not any mixer volume settings) at all</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">2009-12-01 [[User:JOERG|jOERG--Openmoko HW development and synergy]]</ins></div></td></tr>
</table>JOERGhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=61109&oldid=prevJOERG: Undo revision 61108 by Kd8ikt (Talk)2008-12-04T01:12:44Z<p>Undo revision 61108 by <a href="/wiki/Special:Contributions/Kd8ikt" title="Special:Contributions/Kd8ikt">Kd8ikt</a> (<a href="/index.php?title=User_talk:Kd8ikt&action=edit&redlink=1" class="new" title="User talk:Kd8ikt (page does not exist)">Talk</a>)</p>
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</table>JOERGhttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=61108&oldid=prevKd8ikt at 01:08, 4 December 20082008-12-04T01:08:59Z<p></p>
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</table>Kd8ikthttp://wiki.openmoko.org/index.php?title=Talk:Neo_Freerunner_audio_subsystem&diff=61107&oldid=prevKd8ikt: New page: edit meh2008-12-04T01:08:07Z<p>New page: edit meh</p>
<p><b>New page</b></p><div>edit meh</div>Kd8ikt