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Saturday, March 29, 2008

Alesis ADAT HD24

以下1-7是根據 HD24的說明書所指引:

1. 24 Track simultaneous recording at 44.1/48 kHz(12 tracks @ 88.2/96 kHz)

2 . Storage media: Standard IDE hard drive(minimum 5,400 RPM)

3. Recording time per each 10 gigabytes @ 48kHz:45 minutes x 24 tracks; @ 96kHz: 45 minutes x 12tracks

4. Number of drive bays: Two front-panel, hotswappable

5. Recording Modes:4 4.1/48 kHz24 track, 16 track, 8 track, 4 track, 2 track8 8.2/96 kHz12 track, 8 track, 6 track, 2 track

6. Resolution: 24 bit linear PCM encoding

7 . Internal clock Fs: 44.1kHz, 48kHz, 88.2kHz,96kHz; External clock; Varispeed -16%/+6% @ 48kHz


假如您的 HD24 Firmware 是 version 1.10 以下的話,您只能:
1. 99 songs per project.


2. ATA 6 compatibility. (Previous HD24 firmware was only compatible with ATA 5that allowed drives up to 137 GB.) ADAT-FST v1.10 allows hard drives up to 2.2Terabytes.


3. Added extended names (up to 64 characters).


4. Added extended character set.


version 1.10 以下還有這些 Bug :


1. Fixed bug where unplugging a master sync source from a slave with a 96k/88.2k songwould set the system clock to an illegal 2x clock (thus causing HD timeouts and otherslow responses).


2. Fixed bug where playing songs longer than 13 hours would eventually freeze thetimecode.


3. Fixed bug where locates and other song information above 13 hours would not alwaysfunction properly.


還有些要留意的東西:
最好有 ups(Uninterruptible Power Supply),萬一斷電還時間 dismount HD 不致什麼也沒有了.


工作溫度:攝氏10度以下或40度以上都有死機的可能.


20GB大約可以錄 90minutes/24Track/48kHz Sampling rate


HD24 maximum capacity Hard Disk: 2000GB=2TB


以下是一些實際經驗的報告: (資料來源: hd24 group)
Western Digital:WD2500JB /250 GB/7200rpm/Ultra ATA100
WD2500JB 可以錄到 20hrs:24Tack/48kHz

File Format: AIFF(Audio Interchange File Format)/WAV

Thursday, March 06, 2008

AsiaWorld Expo

近幾天 05-08Mar,在 AsiaWorld Expo2008 SPRING SOURCES - H.K. Watch, Clock, Optical, Parts & Accessories Fair,我在其中一個攤位(11F6)負責推介:高仿古度、限量製造青銅古劍。

因這類中國藝術珍藏品較特別及小眾,引來不少的查詢;許多參觀者在知到報價(us$xxx-$x,xxx)後便即時採取觀望姿態。這天收館前有位參觀者(俄羅斯)即場要了1把越王勾踐劍及劍座,相信他是對這類限量製造是有認識的;使我有較奇怪的感受是,為何在同一大陸內,北方的外族知道它,南方的同族卻對它較保留?

真正的古劍、名劍若是已出土者都必定是國寶級寶物,說什麼也不會流入民間,若民間有真品,國家現在必先取之而後快(被暫存在外國博物館的除外),近年有些收藏家、劍迷便望能找些高質素的仿古裝珍藏品來觀賞以表深情。

有需要便會有市場,這批高質素的仿古裝珍藏品,是荊州的出品,不論在字體、劍的尺寸及用料質量都高度參照古劍,因香港有對利器的嚴謹要求,特別把鋒利的劍鋒減去令它夠不上「鋒利」這個詞。