星期六, 12月 02, 2006

Foobar2000的各式Plugin

裝了幾個foobar的plugin與DSP component
簡記一下~
crossfeed和4front headphone:
都是修正 耳機只聽到一邊聲道,而產生的聽覺定位錯誤(疲勞)
continuator:
Let foobar volume fades in/out when switching songs.
msnalt:
Let foobar interactive with msn's showing playing songs.
convolver:

「Playback」>「DSP Manager」>「Equalizer」(等化器)(我沒使用)
別人調整好的範本
http://sjeng.org/ftp/fb2k/eq_presets.zip
「Equalizer」>「Load Preset」(進入範本解壓縮的目錄),範本副檔名為*.feq,譬如選擇「輕貝斯」(Soft Bass.feq)模式 >「開啟」>「Save all」

「Playback」>「DSP Manager」>「Resampler(PPHS)」
按下右方窗格「Target sampling rate」,選擇「48000」,並勾選右方的「Ultra mode」,按下「Save all」。
為什麼要改成48KHz?原因是為了減少音效卡轉換的失真。一般的歌曲取樣頻率為44.1KHz,但是在Intel制訂AC97的規格時,把音效卡的內定取樣頻率設為48KHz,這樣一來不管你的歌曲是怎麼取樣,都會被強制轉成48KHz,中間便出現了失真,所以我們先利用軟體改成取樣方式為48KHz,來減少失真以加強音質。

□Convolver
Impulse檔下載
http://sjeng.org/foobar2000.html
Convolver可視為通用版的音色音場DSP,它的原理是取一個標準的脈衝響應(Impulse Response)檔案,經過處理之後再錄回去,處理的方式可以是在某個環境下播放、經過某台機器來放、用軟體合成等等。之後只要在Convolver外掛裡載入這個處理好的檔,就能立即將音樂變成處理時的環境。聽起來蠻玄的,但除了模擬教堂那種效果之外,Convolver也可模擬某些機器的音色,像是真空管擴大機等等,非常好玩。上面的網址裡有很多玩家做好的Impulse檔案,載入之後就會立刻變聲,尤其是真空管擴大機的效果,強烈建議試試看!
下載Impulse檔之後,從「Convolver」下按「Load impulse file」就可載入,如果聽到爆音,則取消勾選「Auto level adjust」,並把下面的level adjust往左邊調。

最後,要讓剛才的設定都能生效,選左方窗格的「Playback」>「DSP Manager」,用「<=」將剛才有設定的選項自右邊移到左半部設定才會被載入啟動。
DSP是foobar2000的精華所在,原本只有一個「Volume Control」(控制音量),但右邊有許多DSP外掛可供選擇,foobar2000 DSP的原則是「下面影響上面」,所以記得把「Volume Control」留在最下面。


Related link:
http://stephan.kochen.nl/proj/foobar2000.html
http://blog.yam.com/woodyizie/article/4991126
http://www.yohng.com/headphones.html

3 則留言:

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