Title: Jimi Hendrix - Wight - patched - speed corrected

Venue: Isle of Wight Festival, August 30th 1970, East Afton Farm, Isle of Wight, England

Line up:
Jimi Hendrix - guitar and vocals
Billy Cox - bass
Mitch Mitchell - drums

Source material used (information about sources copied from hpjohnse: www.infromthestorm.net):
Down Here on the Farm [aka. "East Afton Farm"] (ATM 025-026 / 22.04.1999 / 2CDR) (Isle of Wight Festival, East Afton Farm, Isle of Wight 30.08.70 [Complete Show plus Pre-show interview by French Radio] plus Super Concert '70, Deutschlandhalle, Berlin 04.09.70 [Backstage interview by Chris Bromberg & uidentified [sic] 2nd person for BFBS (British Forces Broadcasting Service)]) Isle of Wight: Mono Sbd; 3rd Gen / Berlin interview: from Radio Broadcast. notes:- The set is sourced from material with a MiniDisc in the lineage.

Blue Wild Angel: Jimi Hendrix Live at The Isle of Wight - Special 2CD Edition (Experience Hendrix / MCA 113 086-2 / 2002 / EU / 2CD Digipack / Limited Edition)

Notes about mono soundboard:

This source is most likely recorded by the Pye mobile recording unit.
The mono soundboard source was originally given by (or stolen from?) the record company Polydor to (by?) Caesar Glebbeek and Dan Foster in 1973. The last two persons found the tapes in the Polydor archives when they looked for Jimi Hendrix stuff there. The tapes are possibly a dub made by Pye themselves. The mono soundboard recording was spread over several big reel-to-reel tapes of 15 ips [inch per second]. (source: personal communication with Ceasar Glebbeek)
I use the third generation copy in ATM 025-026. This source is incomplete. There is a gap of a little over a minute in Machine Gun probably due to a tape switch by the Pye mobile recording unit. Machine stops at around 12:26 (after the first bar is played) and starts again at around 13:34.
A few words by Jimi Hendrix are missing after he says "we like to play a song called Dolly Dagger, and we are trying to put this on our new LP". This is possibly also due to a tape swap by the Pye mobile recording unit. The words missing are: "What is that? What? Oh yes, somebody wants to, uh. People in front want to sit down? I think it is coming [with us from?] the Hills". This section lasts 13 seconds.
There is a little glitch when Jimi says "I'm glad you all have patience there cause I don't", before Midnight Lightning. There is a skip in the word "glad". I think this is not due to a change of source.
Right after the beginning of Hey Baby about 18 seconds is missing. This is probably due to a tape swap.
This leads me to the hypothesis that Pye possibly used 32 minute long tapes. The tape swaps must have been quick, taking less that 15 seconds sometimes.
According to one source Pye used only one tape recorder in their mobile recording unit. (source: https://www.soundonsound.com/techniques/restoring-mixing-chicago-isle-wight by Stephanie L Carta, published July 2018, quote from mix engineer Tim Jessup who mixed the Chicago concert at the same festival: "the Pye Studio engineers had only one multitrack tape recorder on their remote truck, with no backup machine running to catch entire songs when the tape ran out during performances.")
The official Experience Hendrix release contains all the missing parts in the mono soundboard tape. Therefore they must have used a different source, at least for some sections. It is unknown who recorded this source. There are rumours that three record companies made recordings at the Isle of Wight Festival (source: Kees de Lange).
What is noticable is that a small segment during the drum solo in Machine Gun is missing in the Experience Hendrix source, and a small section in the middle of Hey Baby. I speculate that this is due to tape swaps in the Experience Hendrix source. These gaps are close to where the gaps in the mono soundboard are. These missing sections are present in the mono-soundboard tape. Maybe Pye had a second recorder after all.
I speculate that the source used by Experience Hendrix sounds so much different from the Pye recording that they decided not to use the Pye source to patch the gaps, and decided to keep the gaps in Machine Gun and Hey Baby to keep the mix consistent.
The tape used in ATM 025-026 runs very slow and with an inconsistent speed, varying between 2,3 and 3,6 percent lower speeds compared to the offical Experience Hendrix release.
There are some cuts at the beginning of Ezy Ryder and Hey Joe. I don't know if some glitches are cut out here or if there is a change in sources. In some bootleg stereo copies of Jimi's Isle of Wight show there is a big glitch at the beginning of Hey Joe (such as the stereo tape with the "many splices and overlaps" mentioned by Kees de Lange in Plug Your Ears, which can also be heard in the bootleg 'Island Man'). Perhaps this glitch was also present on the mono source and cut out here. However, other copies of the mono soundboard (such as used in the bootleg 'Race With The Devil') don't contain the slight edit before Hey Joe.
There is a small cut or glitch at 4:52 (time is on the patched version I use) during In From The Storm. A popping sound can be heard. The tape slows down heavily after this point which suggests a switch to a new tape. This pop can also be heard in other copies of the mono soundboard source (such as the bootleg 'Race With The Devil').
Some bootleg stereo copies all have similar gaps in Machine Gun and Hey Baby as the mono source, which leads me to conclude that all these copies use the same Pye tape. But one stereo bootleg source (the tape with the "many splices and overlaps" mentioned by Kees de Lange in Plug Your Ears) has a smaller gap in Machine Gun, it runs longer after the start of the gap in the mono soundboard source, but that source starts running again at the same point during Machine Gun as the mono source. And the little gap at the beginning of Ezy Ryder is not there, but there is a bigger gap later in Ezy Ryder in the source. The same stereo source during In From The Storm also stops slightly after the moment of the glitch on the mono source, then starts again at a certain point before the glitch (it jumps back in time so to speak). This would suggest a change of source. The stereo bootleg source also runs a little bit longer after the start of the gap at Hey Baby in the mono soundboard source, but starts running again at the same point when the mono soundboard starts again.
An explanation for the glitch during In From The Storm is that a collector ran out on one side of a cassette tape and switched to a new side. The complete Isle of Wight show by Jimi Hendrix lasted two hours and five minutes including the intro and outro. Maybe the collector used one 120 minute tape with two 60 minute sides, or two 60 minute tapes with sides of 30 minutes. Maybe In From The Storm just couldn't fully fit on one side of the the tape and copied the rest of In From The Storm elsewhere. This hypothesis about the collector with the two 60 minute cassette tapes with sides of 30 minutes, is also an alternative to the theory that Pye used 32 minute tapes.

Patch notes:

Unfortunately the mono soundboard source suffers from heavy tape print-through during Sgt. Pepper's Lonely Hearts Club Band (especially during the drum solo) and a little bit during Spanish Castle Magic. I decided not to patch this.
I tried to patch the gaps in the mono soundboard with the official Experience Hendrix release, using the free program Audacity 2.4.2.
I folded down the missing parts I used from Blue Wild Angel released by Experience Hendrix to mono to make the patches into the mono soundboard tape more consistent.
The drums in the offical Experience Hendrix release are a bit lower in volume in the mix, which leads to problems patching parts of this source in. Overall the mix is louder and strongly normalized in volume which also leads to patching problems. The mix is also less sharp/raw.
The patch in Machine Gun starts during the drum solo. I had to increase the volume of the official release by around 2 dB at the beginning of the patch to match the volumes of the drums. I gradually let the volume go down by about 4 dB. I cut off a bit of the mono soundboard after the gap because the speed right after the gap is inconsistent. I used a fade in on the mono-soundboard tape and a fade out on the official release (a crossfade).
I patched in the "What is that? What? Oh yes, somebody wants to, uh. People in front want to sit down? I think it is coming [with us from?] the Hills" (after Dolly Dagger), from the official release. The volume of the official part has not been altered. I used an audience recording to decide the exact moments when to splice in this section into the mono soundboard tape. This is not so clear from both the mono soundboard tape and the offical release alone. This is the same audience source as the first audience tape in "It has been a long time, hasn't it?" (JPIO-II 019-022 / 23.05.2003 / 4CDR). The actual audience recording cannot be heard in the patch.
The whole sentence "I'm glad you all have patience there cause I don't" before Midnight Lightning has been replaced using the official release. The volume of the official part has been lowered by 2 dB.
Bits of Hey Baby have been cut out from the mono soundboard to make the transition more smoothly. The cut happens at around 15.75 seconds (time on the patched version I use). I had to make the volume of the official release 13 db lower to match the volumes. Then I increased the volume 11 db at around 25 seconds into the song to match the volume to the mono source after the cut. I cut off a bit at 34,5 seconds out of the mono source because this section had speed inconsistensies.
There is a tiny bit missing before of Ezy Ryder and right after Hey Baby in the mono-soundboard tape. Jimi says "Ezy Ryder" barely audible in the background. I patched it with the official Release. This one was easy. The volume of the official part has not been altered.
I patched in the short missing part (the slide-with the guitar) right before the first bars of Hey Joe using the official release. This one is difficult. I lowered the volume of the official part by 3 dB. I spliced the missing slide-down including the first bar of Hey Joe straight in without crossfades. I cut out a bit of the start of Hey Joe on the mono-soundboard, before Mitch Mitchell hits the snare drum during the first bars of Hey Joe, because this part has speed problems.
The glitch at 4:52 during In From The Storm was patched with a quick crossfade in and crossfade out with a part of the official release, while cutting out the pop on the mono-soundboard tape. The volume of the official part has been lowered by 2 dB. A tiny tape slowdown after the patch is still audible if you listen carefully. This is very difficult to get rid of. I decided to keep it this way.
Speed change notes:
Speed changes in digital sources could lead to artefacts, such as phasing errors. Often these errors occur in high frequencies not audible to humans. This problem could be solved by switching to higher sampling rates and higher dynamic ranges. The program Audicity glitches when I use sampling rates other than 44,1 khz, so I stuck to 44,1 khz.

I used the following increases in speed during the following tracks:

Intro and God Save The Queen: 3,571 percent
Sgt Pepper's Lonely Hearts Club Band: 3,583 percent
Spanish Castle Magic: 3,525 percent
All Along The Watchtower: 3,306 percent
Machine Gun - before hiatus: 3,370 percent [3,422 would actually be a bit better])
Machine Gun - after hiatus: 2,561 percent [2,615 would actually be a bit better]
Lover Man: 2,573 percent
Freedom: 2,982 percent
Red House: 3,157 percent
Dolly Dagger and Midnight Lightning: 2,818 percent
Foxy Lady: 2,745 percent
Message To Love and first seconds of Hey Baby: 2,311 percent
Hey Baby (The Land of the New Rising Sun) after hiatus: 2,508 percent
Ezy Rider: 2,273 percent
Hey Joe: 2,472 percent
Purple Haze: 2,492 percent
Voodoo Child (Slight Return): 2,459 percent
In From The Storm - before pop at 4:52: 2,423 percent
In From The Storm - after pop at 4:52 and outro: 3,557 percent

The tape speed varies widely, even during songs. Some tracks could be almost matched perfectly to the official release, such as: God Save The Queen, Sgt. Pepper's Lonely Hearts Club Band, Dolly Dagger, Foxy Lady and Voodoo Child. But it is not my intention to make a merge. Often I was satisfied if a track deviates two tenths of a second at the end of the track  the official release. After all, who knows how accurate Experience Hendrix was with the tape speed?