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2006-01-15
, 06:47
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Posts: 48 |
Thanked: 1 time |
Joined on Jan 2006
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#32
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Originally Posted by bigboote
Well... "sorta". :-)Holy crap, it works! Forgive my linux ignorance, but does this mean there actually is a driver, or is this built-in demo a low-level hack?
Basically, what you're doing there is you're talking to the audio hardware directly, and telling it to flip a transistor-level switch to:
1) Enable the microphone input
...then another to:
2) Patch the microphone input directly to the speaker output
...then set some transistor-level variables to:
3) Increase the input gain
4) Increase the output gain (volume)
Originally Posted by bigboote
'cause I'm a nosy snot and spend my normal working hours looking at things we can do with -our- hardware platform (I work for VMware, Inc.)... so it was not unexpected that I'd spend some time nosing around the ProcFS and SysFS structures looking for as-yet undocumented things on the N770 as well. :-)
How did you discover this?
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2006-01-15
, 06:59
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Posts: 50 |
Thanked: 0 times |
Joined on Nov 2005
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#33
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Rockin. Keep up the good work, and keep us posted!
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2006-01-30
, 21:42
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Posts: 242 |
Thanked: 8 times |
Joined on Jan 2006
@ USA & BharatVarsh ( INDIA - Kerala ).
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#34
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An exploded(opened Nokia 770 ) image was posted at www.nokia770.com/forum.
It shows a Microphone within the Nokia 770. Whether it is still there in the final release of Nokia 770 is unknown.
Last edited by Arjun; 2006-01-30 at 22:24.
It shows a Microphone within the Nokia 770. Whether it is still there in the final release of Nokia 770 is unknown.
Last edited by Arjun; 2006-01-30 at 22:24.
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2006-02-03
, 16:52
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Posts: 242 |
Thanked: 8 times |
Joined on Jan 2006
@ USA & BharatVarsh ( INDIA - Kerala ).
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#35
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I do knot know if this link will work.
But here it is anyway. This picture in the link shows that there is indeed an internal Microphone within the Nokia 770 IT.
img=http://img220.imageshack.us/img220/2940/770explodedview1xh.th.png
Or try the following Link. Scroll towards the bottom and u will finda reply by " Ze3Sl@k "
http://nokia770.com/forum/viewtopic.php?t=28
Last edited by Arjun; 2006-02-03 at 16:59.
But here it is anyway. This picture in the link shows that there is indeed an internal Microphone within the Nokia 770 IT.
img=http://img220.imageshack.us/img220/2940/770explodedview1xh.th.png
Or try the following Link. Scroll towards the bottom and u will finda reply by " Ze3Sl@k "
http://nokia770.com/forum/viewtopic.php?t=28
Last edited by Arjun; 2006-02-03 at 16:59.
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2006-06-01
, 02:28
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Posts: 207 |
Thanked: 3 times |
Joined on Jun 2006
@ Texas
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#36
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Originally Posted by JMills
Is is complicated to have the mic output piped into a file? If not, then instant voice recorder.
From a shell prompt (i.e., inside `xterm` on the N770)
sudo gainroot
cd /sys/devices/platform/audio-i2c/
echo 1 > mic_enable
echo 1 > mic_loopback
echo 100 > gain_left
echo 100 > gain_right
echo 90 > volume_left
echo 90 > volume_right
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2006-06-01
, 04:00
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Posts: 32 |
Thanked: 1 time |
Joined on Nov 2005
@ Cumberland Center, Maine, USA
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#37
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Originally Posted by Odin
Now that would be pretty cool. I think it'd be rather amazingly complex, though. But, with the new update, the increased built in features to support the VOIP might present a work around...
Is is complicated to have the mic output piped into a file? If not, then instant voice recorder.
Holy crap, it works! Forgive my linux ignorance, but does this mean there actually is a driver, or is this built-in demo a low-level hack?
How did you discover this?
John