Nixie-tube IN-13 MP3 Player & Music Visualizer Ver.2 "スカイクラッドの観測者" By Zi-Zi-

Type 20Bar MP3 Player & Music Visualizer By Zi-Zi-
特徴：
1.Interface2011年5月号付属のRX62Nマイコン使用（←比較的安価2300円）
2.ＦＦＴ処理間隔20Hz（MP3でコードデータでFFTを実施）,サンプリングレート44.1kHz,サンプル数2048,表現可能周波数間隔21.532Hz
3.MTUを使用した20chPWM同時出力
4.MP3Playre機能内蔵（SDカードから読み出し）

今後の進展：
1.現在１２８本バージョンの３号機を製作中
2.３号機の特徴,出力IOとしてMAXⅡを２個使用し、合計１２８chを表現予定
3.MP3の離散コサイン変換（DCT）を利用し、より高速のスペクトル表示を予定
4.（量産化？？するかどうかはともかく）基盤の再設計及びCPUをRX62N100Pinの搭載を模索

Type20Bar Music Visualizer By Zi-Zi-

Features:
1: CPU is "RX62N" microcomputer. The program language is C.
2: FFT is processed at 20Hz, the sampling rate of 44.1kHz, 2048 samples, 21.532Hz frequency interval can be expressed
3: This microcontroller is using the simultaneous output of PWM 20ch. (Expandable to up to 21ch) The height of the light is controlled by PWM.
4: update software,then the light can be adjusted in real time.
5: Can decode and play MP3 files from SD card

Future developments:
Now, I'm making a Next type. The Third can drive 128ch Nixie tubes. Next type use the discrete cosine transform of the MP3. Then this can very fast drivie and show accurately wave.
I think that making IN-13 type nixie tube visualizer is the last challenge.

Category:

Science & Technology

Tags:

• Nixie
• Tube
• IN-13
• Visualizer
• FFT
• Electronic
• Demo
• MP3
• いとうかなこ

[AlternativeGate]

Thanks for the comment.

As you requested, I'll be shooting at night.

[fredintheshed1]

Wow its great. Must look even better with the lights dimmed.