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iPhone動画の音声加工例、およびアンプの紹介です。 ■音声加工 マイク録りが面倒なため、過去iPhone動画をいくつかアップしてきました。 結果、特に100Hz以下と10kHz以上がかなり不足することがわかりました。このままでは、実際の感覚が伝わりにくいです。 このため今回、実際に立ってアンプを弾いている時の聴感に合わせて、音声を加工してみましたので紹介します。 加工手順は以下です。 1.iPhoneで録画。マイクでのクリップに注意。 2.PCに取り込む。 3.Pazera Free Audio Extractor で、.wavを抽出。 http://www.pazera-software.com/produc... 4.DTMソフトで、以下EQ加工。 75Hz +9dB Q=1 250Hz +3dB Q=2 15kHz +9dB Q=3 20kHz +12dB Q=4 5.Max output=0dBにして、.mp3で出力。 6.Windows Movie Makerで、もとの動画にmp3を組み込む。（.movのまま処理できなければ、もとの動画は以下でいったん.mpgにしておく。 http://www.katch.ne.jp/~kakonacl/doug... ） 250Hzは、キャビ/床鳴りとして加えていますが、無くても良いでしょう。 I've been uploading some iPhone videos, but I found there was lack of high/low-end. This the sample to get enough high/low-end with the EQ setting above. 250Hz can be removed, it was for the simulation of cabinet/floor feeling. ■Amp/System Ibanez S7420FM MESA BOOGIE Single Rectifier clean (AB763 crystal clean mod) 2x12 Weber Silver12 (Paper+Hemp) 2x1x12 Fane Axiom12 1.Dry; Guitar- VPedal- Amp- 2x12 Weber 2.Wet; Amp(Slave out)- TC- Mixer- Rocktron 150- 2x1x12 Fane 3.Midi; Roland FC200- TC// KORG trinity rack- Mixer センター=ドライ、サイド=2xウェットとした、3chのシステムです。コーラス、ディレイが非常にキレイにかかります。 難点は...iPhoneマイクがモノのため、この動画ではステレオの良さが伝わらないことです！今後、iPhone外部ステレオマイクも検討します。 また、ウェットはドライよりもライン風にしているので、実際は動画よりもクリスタルクリーンなサウンドです（iPhoneを真ん中に置くと、サイドが拾い切れない）。 Center=Dry, Side=2xWet, total 3ch system. This has a very beautiful Chorus, Delay, but it's a pitty iPhone video microphone is Mono. I'll consider about installing an external stereo microphone sooner. In addition the actual sound is bit more crystal clean, because I always set the wet to be more like LINE sound (Wet cannot be picked up well, because of the iPhone position.).

MESA BOOGIE Single Rectifierの改造例を紹介します。 ■演奏、スイッチ等操作 0:00 (Diode), Clean 0:11 (Valve), Clean 0:27 Pushed 0:57 Drive, GAIN=PUSH 1:11 Drive, GAIN=PULL, Gt=Vol lowered 1:29 Drive, GAIN=PUSH, Gt=Vol lowered 1:38 Drive, GAIN=PULL ■改造内容 1.整流管5U4増設。STANDBYスイッチにて、Up=Diode、Mid=Standby、Down=Valve選択。 2.Clean。MESA色を取り除き、Deluxe Reverb AB763に極力近付ける。 3.(この改造のメイン)Pushed。オリジナルは全く良いと思えなかった。このためAB763をドライブしたような、レスポンスの良い心地良いドライブに纏めた。 4.Drive。GAIN=Push/Pullとし、Pull=Brightとなるよう改造。 ■解説 Single RectiとDual Rectiとで大きく違う、以下2点に関して解説します。 1.ダイオード/整流管選択 Singleの電源はダイオードのみ。Dualは、ダイオード/整流管選択。このため今改造では、整流管5U4用のヒータートランスを増設して、ダイオード/整流管を選択出来るようにしています。（※「他人に聞かなければ理解出来ないレベル」で、同様の改造を行うのは非常に危険です。） 2.CleanChの回路構成 SingleのCleanは、AB763のVibrato chを改造した回路です。一方、DualのCleanは、Drive回路のゲインを下げただけ...つまり全く違います。 次にSingale Recti におけるAB763改造の方向性は、Bright cap=120p、多くのポイントでハイ落ちにより、ミッドハイがやけに強調されて、ハイエンドまでヌケないCleanとなっています。このため今改造では、Bright cap=47p、またほとんどのハイ落ちを無効化して、Deluxe Reverb AB763 vibrato ch同等のサウンドとしています。 次に、この改造のメインであるPushedです。改造前は、Santanaよろしく、如何にもミッド満載のサウンドでした。が、Fenderも多数改造する身として、やはりAB763のドライブを表現せずには居れませんでした。オリジナルは、Treble capに2000p程度かさ上げする回路でしたが、ここを切り離す一方、Midに4.7kかさ上げするようにしています。またPost driveで、ミッド～ハイが程良く削れるよう、Volumeに68k+2200pを追加しています。これらはPushed時のみ効きます。 最後にDriveです。さすがに1時代を築いたアンプだけあって、完成度は高いです。ただ、ハイが引っ掛かりにくいため、ピッキングやギター側のボリューム操作への追従性に不満があります。このためPush/Pullボリュームに交換し、Pullで回路内のハイ落ちを無効化しています。よりスクリーミングトーンが出やすくなります。 所詮iPhoneのビデオですが、ヌケ、レスポンス等のイメージはご理解いただけることと思います。 Harmony Centralではもともと、Dual RectiよりSingle Rectiのほうが高評価です。この改造で、さらにこのアンプに納得出来る人が増えることと思います。 MESA BOOGISE Single Rectifier Mod 1.5U4 added. Standby SW to be Diode/Standby/Valve. 2.Clean ch circuit to be AB763 Deluxe Reverb Vibrato ch. 3.(Main item)Pushed was not good with original. Change to be driven AB763. 4.Drive. GAIN to be Push/Pull, Pull=Bright. 1.Single has only a diode rectifier. Dual has diode/valve. So I've installed 5U4, and 5V3A heater TX. 2.When it comes to clean ch. Single has a modified Fender AB763 circuit. But that of Dual is only a "GAIN reduced Drive" circuit. I love and have/mod many Fender amps, you know AB763 is always good. Then MESA modded AB763 circuit (in Single) was bright=120p, with many roll off caps. I don't like that "Mid-High" sound, without the glassy high-end. I've changed this to be AB763 Deluxe Reverb vibrato ch circuit, of course bright=47p. 3.Pushed. This is the main item. The original sounded like SANTANA...yeah please go for it if you like it...But I love AB763, and already modified Clean, I cannot help modifying this too. I've removed the "mid-boost" treble cap=2000p, and added 4.7k for Mid, then added best balanced post roll off=68k+2200p for Volume. They works only when Pushed. 4.Drive. Yes this is the "Recto" sound. Very good, don't buy these amps if you don't like it. But I felt it doesn't have an enough higher frequency that we need for the touch-responsable, or screaming sound. I've replaced the GAIN pot to Push/Pull, and Pull kills some roll off circuit. This is only an iPhone Video, but I hope you can notice what I mean.

0:00 Default PU=hum 0:29 Bright PU=hum 0:52 Default PU=tapped 1:12 Bright PU=tapped ch2 bright mod の別サンプル動画です。特にPU=singleで、glassyでMarshallぽくなります。 Here is an another sample of the ch2 bright mod. It gets glassy especially with single PU. ch1 clean+crunch; http://www.youtube.com/watch?v=pp5TWk...

The first part of "We've got Hostiles." There's a few tricks I used here, but it's mostly just jumping past all the combat instead of fighting. At about 20 seconds in, I use the pallet to do a prop climb over the debris, and I imagine this is the biggest time saver here seeing as I don't have to stop and jump over 2 levels of boxes. At the 14 or 15 second mark, It's possible to get a boost off of the spawning enemy, but in this run it actually stopped my bunny hop and slowed me down. Pretty good timing here could save a couple seconds. The final part could've been done better as well. Ideally Gordon would be up against the cage as it opens, but in this case I got stuck behind the button console instead of jumping on top of it. I actually thought that there was a button there that opens the door, but apparently I was just imagining it. On a side note I don't use any scripts for jumping/prop climbing/anything really.

I saw Tyronis3 playing this map today and it looked fun. Turns out you can skip a bit of the map by moving over a backwards conveyor belt. It's easy with the explosive boost, but it's possible without it. Even though this run is a little sloppy, it shows that this game has some really neat speed-running potential. It's also worth noting that there's a neat little bug that allows you to grab onto ladders even when there's something obstructing your path. Near the end of the run, I stand on the opposite side of the rail and press my use key against the ladder. This pushes me through the rail and against the ladder without having to jump over it.

Not sure why I uploaded that last video. This one is the same thing but I go down the elevator this time. I would remove the other but I won't because I won't. Now it is an antique I'll sign a copy if you want.

I used a prop boost to jump across the water, skipping most of the map without needing to have any grenades. Woops, this guy discovered it first: http://www.youtube.com/watch?v=zr8Tl7...

I discovered a neat little trick to move quickly in the vents so now I'm showing the world. Point your crosshair a bit away from the wall while holding the strafe key of the corresponding wall. Spam jump with your mouse wheel and you will go fast. It works best with inclined vents but any will do. Gotta go fast!

The first part of "We've got Hostiles." There's a few tricks I used here, but it's mostly just jumping past all the combat instead of fighting. At about 20 seconds in, I use the pallet to do a prop climb over the debris, and I imagine this is the biggest time saver here seeing as I don't have to stop and jump over 2 levels of boxes. At the 14 or 15 second mark, It's possible to get a boost off of the spawning enemy, but in this run it actually stopped my bunny hop and slowed me down. Pretty good timing here could save a couple seconds. The final part could've been done better as well. Ideally Gordon would be up against the cage as it opens, but in this case I got stuck behind the button console instead of jumping on top of it. I actually thought that there was a button there that opens the door, but apparently I was just imagining it. On a side note I don't use any scripts for jumping/prop climbing/anything really.

Not sure why I uploaded that last video. This one is the same thing but I go down the elevator this time. I would remove the other but I won't because I won't. Now it is an antique I'll sign a copy if you want.

I saw Tyronis3 playing this map today and it looked fun. Turns out you can skip a bit of the map by moving over a backwards conveyor belt. It's easy with the explosive boost, but it's possible without it. Even though this run is a little sloppy, it shows that this game has some really neat speed-running potential. It's also worth noting that there's a neat little bug that allows you to grab onto ladders even when there's something obstructing your path. Near the end of the run, I stand on the opposite side of the rail and press my use key against the ladder. This pushes me through the rail and against the ladder without having to jump over it.