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iPod question
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Dedicated MacNNer
Join Date: Apr 2000
Location: Tupelo, MS
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Will the iPod play wav's and AIFF's out of the box? Will there be any way to make them play wav's or AIFF's by adding software?
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Mac Elite
Join Date: Jun 2000
Location: Pasadena
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I'm not certain of this, but I'm guessing that the iPod has a dedicated MP3 decoder chip (I^2C interface?), which means it can't send any other type of audio encoding out from the RAM. So if that were the case, then no, and no.
On the other hand, if Apple went with a powerful CPU to do audio decoding in software, then yes and yes. But given how convinent some of the MP3 chips are, I'm guessing it's more likely to be the former.
If anyone can point me to pictures of the iPod's logic board, I can tell you for sure.
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G4/450, T-bird 1.05GHz, iBook 500, iBook 233...4 different machines, 4 different OSes...(9, 2k, X.1, YDL2.2 respectively) PiA to maintain...
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Forum Regular
Join Date: May 2002
Location: New York
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Straight from <a href="http://www.apple.com/ipod/specs.html" target="_blank">Apple's iPod spec page</a>
Audio
Up to 20 minutes of skip protection
Maximum output power: 60 mW rms (30 mW per channel)
Frequency response: 20 to 20,000 Hz
Audio formats supported: MP3 (up to 320 Kbps), MP3 Variable Bit Rate (VBR), WAV, AIFF
Upgradable firmware enables support for future audio formats
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Dedicated MacNNer
Join Date: Apr 2000
Location: Tupelo, MS
Status:
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</font><blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">quote:</font><hr /><font size="1" face="Geneva, Verdana, Arial, sans-serif">Originally posted by Lordx_:
<strong>Straight from <a href="http://www.apple.com/ipod/specs.html" target="_blank">Apple's iPod spec page</a>
Audio
Up to 20 minutes of skip protection
Maximum output power: 60 mW rms (30 mW per channel)
Frequency response: 20 to 20,000 Hz
Audio formats supported: MP3 (up to 320 Kbps), MP3 Variable Bit Rate (VBR), WAV, AIFF
Upgradable firmware enables support for future audio formats</strong></font><hr /></blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">Awesome, thanks. Guess I'll be buying one probably next week when the 10GB comes down in price.
The iRock (?sp) device that lets you play your iPod over the radio... Could you hook that up to a cell phone hands free kit? Just wondering. I hate that crappy little speaker that comes with the hands free kits.
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Mac Elite
Join Date: Jun 2000
Location: Pasadena
Status:
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hmm...What do you know...I guess Apple chose to use a powerful CPU + DAC over crappy CPU + MP3 chip. Sounds good to me...When I was doing my MP3 player project, a friend did a CPU cycle count, and came to the conclusion that a 9.2MHz 80188 chip can handle an UI (2 lines of 16 character LCD) AND MP3 decoding if you do perfect assembly coding to utilize every CPU cycle o_O
ignoring that, to answer your question, MOST cell-phones use jacks smaller than normal headphone ones (Nokia 8290), or proprietary ones...so highly unlikely that iRock will work with Cell Phones. Also, a quick glance at my ear-bud for 8290 tells me that there are 4 lines instead of 3 in a regular stereo connector, which makes sense (somewhat). Stereo connector has left channel, right channel, and ground pins, the hands-free kit has to have at least left channel, ground, and input channel...not sure what the 4th is for ^_^; anyone has info on that?
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G4/450, T-bird 1.05GHz, iBook 500, iBook 233...4 different machines, 4 different OSes...(9, 2k, X.1, YDL2.2 respectively) PiA to maintain...
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