Actusreus,
I've no experience with the cheapie Blue Note reissues, but the sound you described is consistent with pressing voids, which are caused when the vinyl plug and mold are not up to temperature when pressed. The vinyl can't flow into all the groove modulations and literally leaves a void (gap) between vinyl and stamper wall. It sounds exactly as you described:
Typical flaw resulting from a rushed manufacturing process.
I've no experience with the cheapie Blue Note reissues, but the sound you described is consistent with pressing voids, which are caused when the vinyl plug and mold are not up to temperature when pressed. The vinyl can't flow into all the groove modulations and literally leaves a void (gap) between vinyl and stamper wall. It sounds exactly as you described:
It's a short buzzing sound, which sounds kind of like the sound of lost airwaves on the radio but higher in pitch.Pressing voids occur more often on the L channel (inner groove wall) than the R (outer), but can occur in either.
Typical flaw resulting from a rushed manufacturing process.