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Author Topic: Nspire audio?  (Read 65478 times)

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Offline calc84maniac

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Re: Nspire audio?
« Reply #15 on: March 31, 2012, 02:45:49 pm »
Since I guess the main solution for USB audio would be to connect a small USB sound card that outputs to a 3.5mm jack, I doubt there would be any quality issues.
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Offline MasterGeek

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Re: Nspire audio?
« Reply #16 on: June 14, 2012, 06:53:32 pm »
Maybe it would be possible to just send analog signals directly to some sort of speaker? like a laptop USB speaker.
Maybe it would be possible to make a custom sound device using an ardino?
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Offline renatose

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Re: Nspire audio?
« Reply #17 on: June 14, 2012, 07:25:05 pm »
Next month I'll start trying it by serial->arduino->old computer internal speaker then I'll post here some results.
And since I don't have experience with C on the nspire I'll use the Lua print() function to send the tunes in some format, the sound is going to be monophonic which would be enough to have some sound in GB games.
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Offline Levak

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Re: Nspire audio?
« Reply #18 on: June 14, 2012, 07:33:30 pm »
Quote from: renatose on June 14, 2012, 07:25:05 pm
I'll use the Lua print() function to send the tunes in some format, the sound is going to be monophonic which would be enough to have some sound in GB games.

You'll have to stay in 3.0.2 or 3.0.1 since 3.1 removed the print() in Lua
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Offline cyanophycean314

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Re: Nspire audio?
« Reply #19 on: June 14, 2012, 09:13:44 pm »
Wasn't there a fixprint program by ndless for OS 3.1?
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Offline TheNlightenedOne

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Re: Nspire audio?
« Reply #20 on: June 14, 2012, 09:58:26 pm »
Yes, but iirc it didn't survive a reboot, because it hot-patched the OS in RAM.
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Offline calc84maniac

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Re: Nspire audio?
« Reply #21 on: June 15, 2012, 12:15:29 am »
Quote from: TheNlightenedOne on June 14, 2012, 09:58:26 pm
Yes, but iirc it didn't survive a reboot, because it hot-patched the OS in RAM.
Newer Ndless versions have a startup feature, so you can set programs to run upon OS startup.
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Offline Levak

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Re: Nspire audio?
« Reply #22 on: June 15, 2012, 09:02:24 am »
Quote from: cyanophycean314 on June 14, 2012, 09:13:44 pm
Wasn't there a fixprint program by ndless for OS 3.1?
Sure : http://tiplanet.org/forum/archives_voir.php?id=4227
But it's useless to have that+Ndless+3.1 when you can have it in 3.0.1 or 3.0.2 and when you can't use the 3.2 SDK.
« Last Edit: June 15, 2012, 09:02:41 am by Levak »
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Offline renatose

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Re: Nspire audio?
« Reply #23 on: June 15, 2012, 09:38:24 am »
Quote from: Levak on June 15, 2012, 09:02:24 am
Quote from: cyanophycean314 on June 14, 2012, 09:13:44 pm
Wasn't there a fixprint program by ndless for OS 3.1?
Sure : http://tiplanet.org/forum/archives_voir.php?id=4227
But it's useless to have that+Ndless+3.1 when you can have it in 3.0.1 or 3.0.2 and when you can't use the 3.2 SDK.
anyway I'll use that fix in OS 3.1 if that doens't work I'll go back to 3.0.2.
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Offline MasterGeek

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Re: Nspire audio?
« Reply #24 on: June 26, 2012, 08:36:58 pm »
what about using the USB port on the Nspire to connect to the ardino?
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Offline renatose

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Re: Nspire audio?
« Reply #25 on: June 26, 2012, 09:13:45 pm »
Quote from: MasterGeek on June 26, 2012, 08:36:58 pm
what about using the USB port on the Nspire to connect to the ardino?

That's something that I won't even try at least in the short term.
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Offline Keoni29

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Re: Nspire audio?
« Reply #26 on: June 27, 2012, 04:11:02 am »
Custom sound device? I made a DAC for the TI84+, so I might be able to design one for the Nspire platform. The main problem is that I know very little about the Nspire and I don't have one, so some of you guys will have to do the coding and provide me with a signal which the control logic must interpret.

Edit: http://ourl.ca/16139/308321
« Last Edit: June 27, 2012, 04:12:01 am by Keoni29 »
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Offline calc84maniac

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Re: Nspire audio?
« Reply #27 on: June 27, 2012, 08:43:26 pm »
It would be much better to work with the USB audio specifications, so you could actually work with most retail sound devices.
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Offline DJ Omnimaga

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Re: Nspire audio?
« Reply #28 on: June 27, 2012, 08:52:14 pm »
The only concern I have if Nspire audio is possible is that it might not have a much higher audience than 8x audio, because it's not everywhere that you easily find USB headphones, since every store expects you to need 3.5mm standard headphones. Of course USB speakers can work I guess, if the calc can power them enough or if they have to be plugged in the wall too.
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Offline calc84maniac

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Re: Nspire audio?
« Reply #29 on: June 27, 2012, 09:48:23 pm »
This is the kind of thing I was talking about (I bought one of these myself to eventually try to use with calcs): http://goo.gl/y2CHS
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