| Identifier | 8252724 |
| Created At | Wed Dec 29 2010 05:30:46 GMT+0000 (Coordinated Universal Time) |
| Media Type | CDR |
| Media Count | 3 |
| Note | SBD -> Dobly A Reel -> Dolby A decode -> DAT -> Sound Forge NR -> CD-R
The Sound Forge noise reduction was used to attenuate a very narrow frequency band (in the vicinity of 8000 Hz) which was present as interference on the original reels. See my notes below for details. Disc 1 Set 1 1. Cold Rain And Snow (7:24) 2. Me And Bobby McGee (8:18) 3. Loser (7:37) 4. Easy Wind (9:21) 5. Playing In The Band (5:46) 6. Bertha (6:17) 7. Me And My Uncle (4:57) 8. Ripple (take 1) (1:31) 9. Ripple (7:53) 10. Next Time You See Me (5:41) 11. Sugar Magnolia (7:33) Disc 2 1. Greatest Story Ever Told > (4:43) 2. Johnny B. Goode Set 2 3. China Cat Sunflower (11:36) 4. Bird Song (6:44) 5. Cumberland Blues (5:48) 6. King Bee (9:12) 7. Beat It On Down The Line (4:53) 8. Wharf Rat (11:02) Disc 3 1. Truckin' (8:42) 2. Casey Jones (6:33) 3. Good Lovin' (16:55) 4. Uncle John's Band (7:36) The original reels of the Port Chester run of '71 were audibly tainted due to a cable problem. The result is a tone which hovers around 8000 Hz with an amplitude of about +20 dB above the noise floor. This translate to a very annoying pitch, especially during quiet sections, which is in the old-tv-tube or lousy-hard-disk or maybe even the-sound-you-hear-after-you-slam-your-head-against-a-concrete-wall class of 'whine'. Because this interference is 'monochromatic' it's easy to get rid of if you have the processing power and a quick FFT algorithm. I used the filter-shaping capabilities of the Sonic Foundry Noise Reduction Plugin to tailor a very narrow notch filter which attenuated the interference without affecting the rest of the signal. And it's all done in the digital domain. Huzzah! As a side note, I actually ended up crafting many filters to process these shows. The frequency of the interference actually drifted anywhere from 7700 to 8100 Hz during a given show. This was probalby due to a slightly wandering reel speed. It made my work harder but when I tried a much wider filter I started to be able to hear the attenuation in the music. The filters generally go like this: 25 dB /- - - - - - - -\ / \ / \ 0 dB | | 7830 7900 7970 The end result is no more annoying whine! I also removed some of the nasty mic feedback in the 2/18/71 Bertha using this type of filter. Leigh Orf |
| Source Info | SBD -> Dobly A Reel -> Dolby A decode -> DAT -> Sound Forge NR -> CD-R |
| Trades Allowed |
Source
| SHNID | Date | Venue | City | State | Archive Identifier |
|---|---|---|---|---|---|
| 1980 | 1971-02-21 | Capitol Theater | Port Chester | NY | |
| SBD -> Dolby A Reel -> Dolby A decode -> DAT -> Sound Forge NR -> CD-R; apparently sourced from previously-circulating Leigh Orf seed, with possible additions by Jason Lunz; note d2,3 have same md5s as previous copy, but d1 md5s are different | |||||
Performance
| Grateful Dead 1971-02-21 Capitol Theater, Port Chester, NY | |
|---|---|
| Set 1 | Cold Rain & Snow, Me And Bobby McGee, Loser, Easy Wind, Playin' In The Band, Bertha, Me & My Uncle, Ripple, Next Time You See Me, Sugar Magnolia, Greatest Story Ever Told-> Johnny B. Goode |
| Set 2 | China Cat Sunflower-> I Know You Rider, Bird Song, Cumberland Blues, I'm A King Bee, Beat It On Down The Line, Wharf Rat, Truckin', Casey Jones, Good Lovin'-> Drums-> Good Lovin'-> Uncle John's Band |
| Set 3 | |
| Comment | E.S.P. show - Other artist(s): NRPS |