采用原子的开发板 做的频谱显示，WM9878+咪头采集音频，1024点FFT变换，最终显示513个频率分量复制（含直流分量）
音乐+扫频（幅值显示）
$('flv_e99').innerHTML=(mobileplayer() ? "" : AC_FL_RunContent('width', '500', 'height', '375', 'allowNetworking', 'internal', 'allowScriptAccess', 'never', 'src', 'https://player.youku.com/player.php/sid/XMjQ5NzUzMTg2OA==/v.swf', 'quality', 'high', 'bgcolor', '#ffffff', 'wmode', 'transparent', 'allowfullscreen', 'true'));
$('flv_Ax4').innerHTML=(mobileplayer() ? "" : AC_FL_RunContent('width', '500', 'height', '375', 'allowNetworking', 'internal', 'allowScriptAccess', 'never', 'src', 'https://player.youku.com/player.php/sid/XMjQ5NzUzMzk4OA==/v.swf', 'quality', 'high', 'bgcolor', '#ffffff', 'wmode', 'transparent', 'allowfullscreen', 'true'));
对数 20log的噪声频谱
$('flv_wuf').innerHTML=(mobileplayer() ? "" : AC_FL_RunContent('width', '500', 'height', '375', 'allowNetworking', 'internal', 'allowScriptAccess', 'never', 'src', 'https://player.youku.com/player.php/sid/XMjQ5NzU2NzA2NA==/v.swf', 'quality', 'high', 'bgcolor', '#ffffff', 'wmode', 'transparent', 'allowfullscreen', 'true')); |
楼主
