chumbyhackerboard:audio
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chumbyhackerboard:audio [2010/08/30 18:19] ladyada |
chumbyhackerboard:audio [2016/01/28 18:05] (current) |
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| + | ====== Moved! ====== | ||
| - | ====== Playing local MP3s ====== | + | This tutorial has moved to [[http://learn.adafruit.com/chumby-hacker-board/audio|http://learn.adafruit.com/chumby-hacker-board/audio]] |
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| - | You can play MP3's off of your USB key or if you've copied any to the **/mnt/storage** space with **btplay --start-daemon file.mp3** | + | |
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| - | {{:chumbyhackerboard:btplay.gif|}} | + | |
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| - | MP3's will play in the background. To kill **btplay** run **killall btplay** | + | |
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| - | Audio will play through the headphone jack at max volume, just plug in your favorite headphones! (Warning: it may be really loud!) | + | |
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| - | ====== Playing remote MP3s! ====== | + | |
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| - | You can also stream music with **btplay**, just stick a URL in there! | + | |
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| - | {{:chumbyhackerboard:soma.gif|}} | + | |
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| - | Just as before, just plug into the headphone jack to verify its working. (Warning: it may be really loud!) | + | |
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| - | ====== Splitting out the A/V ====== | + | |
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| - | The headphone jack is not actually just audio - its actually Audio and Video. That means that you if you just plug headphones you'll notice some buzzing - thats you listening to the video! Now if you're in a Cronenberg film this is probably OK but for most of us its very annoying! There are two solutions. One is to split out the 3 signals into RCA jacks (with a camcorder cable) | + | |
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| - | {{http://www.adafruit.com/images/medium/avcable_MED.jpg}} | + | |
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| - | and then recombining with an RCA Y cable (such as [[http://www.sweetwater.com/store/detail/YRA154/|a Y female-RCA to male 3.5mm]] or [[http://www.sweetwater.com/store/detail/CMR206/|this]] | + | |
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| - | **Note** our A/V cables split out the signals as such - **Red** is Video, **White** and **Yellow** are stereo line-level audio which is not what you would expect! | + | |
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| - | ====== Using the Mixer ====== | + | |
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| - | If you want to change the volume of the headphones, you'll need to run the audio mixer software **amixer** | + | |
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| - | {{:chumbyhackerboard:amixer.gif|}} | + | |
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| - | You can get and change the HeadPhone volume (**HP**) by running **amixer sget HP** and **amixer sset HP** | + | |
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| - | {{:chumbyhackerboard:sgethp.gif|}} | + | |
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| - | To set the volume to 1/2 for example, do this **amixer sset HP 64** | + | |
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| - | {{:chumbyhackerboard:ssethp.gif|}} | + | |
/home/ladyada/public_html/wiki/data/attic/chumbyhackerboard/audio.1283192359.txt.gz · Last modified: 2016/01/28 18:05 (external edit)
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