HOW TO

Maximum PC - - TA­BLE OF CON­TENTS - NICK PEERS

Pump up mu­sic with Vo­lu­mio; VCV Rack; ex­treme an­tialias­ing; Bit­coin wal­lets; pop-out photo ef­fects.

YOU’LL NEED THIS RASP­BERRY PI OR PI ZERO

Plus a 4GB or larger mi­croSD card.

CA­BLE Ca­pa­ble of con­nect­ing your Pi to an

am­pli­fier or your home stereo. WE’RE GO­ING TO TRANS­FORM YOUR RASP­BERRY PI into a mu­sic player with Vo­lu­mio, a dis­tro that has just one job: play­ing and stream­ing mu­sic. It’s rel­a­tively easy to set up, is de­signed for head­less use, and pro­vides a user-friendly in­ter­face through your web browser for man­ag­ing your mu­sic. This UI is repli­cated on the of­fi­cial Vo­lu­mio apps for iOS and An­droid, so you can run ev­ery­thing from your cell phone, too. You can also ac­cess Vo­lu­mio through your mo­bile browser, or try an MPD­ca­pable app, such as MPDroid for An­droid, in­stead. Note, how­ever, that MPD apps can be tricky to set up (con­nect­ing using IP ad­dress rather than host­name is more re­li­able).

Vo­lu­mio also dou­bles up as a UPNP/DLNA and AirPlay re­ceiver, and can be used to stream mu­sic over the In­ter­net, with built-in sup­port for web ra­dio, and plug­ins for stream­ing from Spo­tify and YouTube, too. Vo­lu­mio sup­ports the most pop­u­lar au­dio file for­mats out of the box—in­clud­ing FLAC for those of us who have an aversion to lossy com­pres­sion—and has na­tive sup­port for a wide range of I2S DACs for those who want to take their lis­ten­ing plea­sure to the next level. – setup is com­plete, your browser should re­di­rect you to the main Vo­lu­mio play­back screen. You’ll see that it’s split into three tabs: Browse, Play­back, and Queue [ Im­age A]. They’re all self-ex­plana­tory, so start by click­ing “Browse,” where you’ll see you can nav­i­gate your col­lec­tion. Look out for the spin­ning wheel at first. This in­di­cates that your fold­ers are still be­ing scanned for con­tent. 3 CON­FIG­U­RA­TION OP­TIONS While you wait for the ini­tial scan, click the “Set­tings” but­ton in the top-right cor­ner to find a range of con­fig­urable op­tions. Start with “My Mu­sic,” where you can add new drives to your li­brary. You can also tweak other pref­er­ences here, such as whether to down­load al­bum art from the web, for mu­sic fold­ers with­out art in them. Con­sider switch­ing this off if your al­bum art is em­bed­ded di­rectly into each mu­sic track (you also need to flick the “Show Em­bed­ded Al­bum Art” switch on, then click the “Re­set Al­bum Art Cache” but­ton). If you find that cer­tain art­work comes up miss­ing or cor­rupt, chances are there are hid­den folder.jpg files in the al­bum folder down­loaded from the web. Browse to the al­bum folder in File Man­ager, and se­lect “View > Show Hid­den Files” to re­veal the hid­den .jpg al­bum art files. Delete these, then re­peat for any other af­flicted fold­ers. Once com­plete, go to “Set­tings > My Mu­sic,” and click “Re­set Al­bum Art Cache > Res­can” to up­date the al­bum art.

Se­lect “Play­back Op­tions” to change your out­put de­vice and ad­just re­lated set­tings. Ex­plore “Play­back Op­tions” if you ex­pe­ri­ence fre­quent buffer­ing when lis­ten­ing to mu­sic over the net­work. In­crease the “Au­dio Buf­fer Size” to 12MB, and con­sider up­ping the “Buf­fer Be­fore Play” fig­ure. You can tweak Vo­lu­mio’s vol­ume op­tions from here, too, such as set­ting a de­fault vol­ume on startup, or lim­it­ing the max­i­mum vol­ume level.

The “Ap­pear­ance” set­tings af­fect the web ( and Vo­lu­mio app) in­ter­face, en­abling you to change lan­guage, se­lect a back­ground im­age (or upload your own), or choose a plain back­ground color [ Im­age B]. Ac­cess “Net­work Set­tings” to con­fig­ure the wired and wire­less in­ter­faces— typ­i­cally to es­tab­lish a static IP ad­dress. You can dis­able

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