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I made a cell phone [video]

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Re: I made a cell phone [video]

#11

Post by karlshea »

cellularmitosis wrote: post #6
nikmobi wrote: post #5

Earlier quoted context omitted.

Agreed, my neighbors probably hate me right now from the audio. On a serious note, though, I hope a write up with more details pops up.

This was bad enough that I bothered to figure out how to fix it. VLC -> Media -> Open Network Stream, paste in the youtube URL. VLC -> Tools -> Effects and Filters -> Audio Effects -> Compressor. Enable the compressor. Here's where I moved the sliders: http://i.imgur.com/fGlPM5R.png I basically followed the advice given here: http://lifehacker.com/5920290/how-to-fix-movies-that-are-rea... The last 10 seconds of the v…

Thank you, that made this super-interesting video actually watchable.

Also, I learned VLC will just happily play a YouTube video right from the page's URL.

Re: I made a cell phone [video]

#12

Post by listic »

I thought cell phone companies don't appear from nowhere because governments and/or organizations like FCC in the USA are not allowing just anyone to sell radio communication equipment (is that why cellular modems are never open sourced, right?)

Is it because of the regulations that we don't see lots of cell phone manufacturers? If it wasn't for that, from this presentation I get the feeling that cellphones could be made to spec quite easily, say, by your regular hardware Kickstarter campaign: at least, the cellular modem shown in the presentation looks really self-contained.

Re: I made a cell phone [video]

#14

Post by revx »

UnoriginalGuy wrote: post #4

I wish the audience's audio wasn't much MUCH louder than the speaker. I had to turn the audio up to hear him, but the laughing was so loud I had to turn it down every few seconds. Also a fun video to watch, but he kind of skips over some of the most interesting technical details (like writing the software).

Hi! I shot the video. We had some problems with the mic hookup on stage so I was using a mic all the way back at the camera that wasn't nearly as directional as I hoped. Apologies to everyone's eardrums !

Re: I made a cell phone [video]

#16

Post by good-citizen »

cellularmitosis wrote: post #6
nikmobi wrote: post #5

Earlier quoted context omitted.

Agreed, my neighbors probably hate me right now from the audio. On a serious note, though, I hope a write up with more details pops up.

This was bad enough that I bothered to figure out how to fix it. VLC -> Media -> Open Network Stream, paste in the youtube URL. VLC -> Tools -> Effects and Filters -> Audio Effects -> Compressor. Enable the compressor. Here's where I moved the sliders: http://i.imgur.com/fGlPM5R.png I basically followed the advice given here: http://lifehacker.com/5920290/how-to-fix-movies-that-are-rea... The last 10 seconds of the v…

wow, that's amazing. thank you.

Re: I made a cell phone [video]

#17

Post by cellularmitosis »

karlshea wrote: post #11
cellularmitosis wrote: post #6

Earlier quoted context omitted.

This was bad enough that I bothered to figure out how to fix it. VLC -> Media -> Open Network Stream, paste in the youtube URL. VLC -> Tools -> Effects and Filters -> Audio Effects -> Compressor. Enable the compressor. Here's where I moved the sliders: http://i.imgur.com/fGlPM5R.png I basically followed the advice given here: http://lifehacker.com/5920290/how-to-fix-movies-that-are-rea... The last 10 seconds of the v…

Thank you, that made this super-interesting video actually watchable. Also, I learned VLC will just happily play a YouTube video right from the page's URL.

Yeah, that trick is also useful for older machines which are otherwise too slow to play stutter-free youtube video in a web browser. The VLC implementation appears to be significantly more CPU efficient.

Re: I made a cell phone [video]

#18

Post by jsprogrammer »

cellularmitosis wrote: post #17
karlshea wrote: post #11

Earlier quoted context omitted.

Thank you, that made this super-interesting video actually watchable. Also, I learned VLC will just happily play a YouTube video right from the page's URL.

Yeah, that trick is also useful for older machines which are otherwise too slow to play stutter-free youtube video in a web browser. The VLC implementation appears to be significantly more CPU efficient.

Probably pulls the h264 version instead of VP8/9.

Re: I made a cell phone [video]

#19

Post by voltagex_ »

cellularmitosis wrote: post #6
nikmobi wrote: post #5

Earlier quoted context omitted.

Agreed, my neighbors probably hate me right now from the audio. On a serious note, though, I hope a write up with more details pops up.

This was bad enough that I bothered to figure out how to fix it. VLC -> Media -> Open Network Stream, paste in the youtube URL. VLC -> Tools -> Effects and Filters -> Audio Effects -> Compressor. Enable the compressor. Here's where I moved the sliders: http://i.imgur.com/fGlPM5R.png I basically followed the advice given here: http://lifehacker.com/5920290/how-to-fix-movies-that-are-rea... The last 10 seconds of the v…

Looks like VLC uses http://ffmpeg.org/ffmpeg-filters.html#compand. If someone wanted to have a permanent fixed version.

Re: I made a cell phone [video]

#20

Post by voltagex_ »

listic wrote: post #12

I thought cell phone companies don't appear from nowhere because governments and/or organizations like FCC in the USA are not allowing just anyone to sell radio communication equipment (is that why cellular modems are never open sourced, right?) Is it because of the regulations that we don't see lots of cell phone manufacturers? If it wasn't for that, from this presentation I get the feeling that cellphones could be…

From memory your phone OS just talks to the baseband through AT commands, they're separate.
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