"Landspeck" would be pronounced 'lend-spek' in german.
Means something like "country bacon" - so not a precise specific recipe for speck/bacon.
And on google.de Landspeck gets a few hundred more hits than Lendenspeck.
Mein Deutsch ist ganz schrecklich, leider.
Most smoked specks seem to be smoked for weeks over beech.
Found this with more vocab
Depending on what kind of Speck you need you will need several
substitutes.
Here a quick overview about the different kinds of Speck in Germany:
types of treatment:
gruener Speck (green Speck) : untreated Speck
geraeucheter Speck (smoked Speck): Speck treated with smoke to keep it longer
gepoekelter Speck (cured Speck) : Speck cured like ham to keep it
longer
parts to get Speck from:
Rueckenspeck, also called fetter Speck (back Speck or fat Speck):
cut from the fatty layer between skin and muscles on the back of the
pig
Bauchspeck, also called durchwachsener Speck (belly Speck or streaky
Speck):
from the belly part of the pig
Vinner, what sort of product were you seeking to reproduce?