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EdisonでUSB Audioを使ってみる [edison]

Intel Edisonから音を出すために,USB Audioアダプタをつないでみる.
使ったのは,PLANEXのPL-US35APだ.

PLANEX USB→3.5mmヘッドホン/マイク端子 USBオーディオ変換アダプタ PL-US35AP

PLANEX USB→3.5mmヘッドホン/マイク端子 USBオーディオ変換アダプタ PL-US35AP

  • 出版社/メーカー: プラネックス
  • メディア: Personal Computers

また,Edisonと接続する際,Intel Edison Breakout Board側のUSB端子はMicroBタイプ,USB AudioアダプタはAタイプなので,BUFFALOのBSMPC11C01BKを使ってつないでやる.

iBUFFALO USB(microB to A)変換アダプター ブラック BSMPC11C01BK

iBUFFALO USB(microB to A)変換アダプター ブラック BSMPC11C01BK

  • 出版社/メーカー: バッファロー
  • メディア: エレクトロニクス


なお,EdisonにUSB機器をつなぐとUSBポートから電源供給できなくなるので,別途ACアダプタを使って電源供給してやる.
使ったのは,秋月の,
ブレッドボード用DCジャックDIP化キット
超小型スイッチングACアダプター12V1A 100V~240V GF12-US1210
で,ジャンパー線でEdisonのJ21に接続してやる.

あとはスピーカーだが,今回は100均のSeriaで売っていた,ZY-76というのを買ってみた.
ZY-76.jpg

そしたら,あとは接続するだけだ.

以前はEdisonでUSB Audioを使うにはカーネルのビルドが必要だったが,最新のYoctoイメージでは必要なくなった.最新のYocto complete imageは,ここからダウンロードできる.現時点では,edison-image-ww05-15.zipが最新のようだ.

では,動作テスト.
以下のサイトを参考にしながら適当なwavファイルを再生してみる.
Intel Edisonを動かす(4) サウンド編 | IoT

すると,あっさりと動作した.
が,1点問題が...

ちょっとネットで調べれば分かるが,今回使った100均スピーカをアンプなしで使うと,音量がかなり小さい.USB Audioの出力を100%にしてなんとか聞こえる程度だ.
もう少し音量が得られるといいのだが...
とりあえず聞こえるので良しとしよう.

タグ:USB Audio
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共通テーマ:日記・雑感

nice! 1

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