[Bug 1863981] [NEW] espeak-ng cannot load mbrola language files

[zapyon]

Public bug reported:

I tried using all of the mbrola files named by espeak-ng --voices=de :

Pty Language       Age/Gender VoiceName          File                 Other Languages
 5  de              --/M      German             gmw/de               
 6  de              --/F      german-mbrola-1    mb/mb-de1            
 6  de              --/M      german-mbrola-2    mb/mb-de2            
 6  de              --/F      german-mbrola-3    mb/mb-de3            
 6  de              --/M      german-mbrola-4    mb/mb-de4            
 6  de              --/M      german-mbrola-6    mb/mb-de6            
 7  de              --/F      german-mbrola-5    mb/mb-de5            
 7  de              --/F      german-mbrola-7    mb/mb-de7

espeak-ng -vmb-de1 "Test"

gives me:

mbrola: FATAL ERROR : cannot find file /usr/share/mbrola/de1/de1 !
mbrowrap error: mbrola closed stderr and did not exit
Error: Could not load the specified mbrola voice file.

It does speak, though, seemingly using a default voice.

/usr/share/mbrola does not exist.

The files actually seem to reside in

/usr/lib/x86_64-linux-gnu/espeak-ng-data/voices/mb

I doubt that I can solve this via a simple symbolic link because
seemingly the expected directory structure is different: all mbrola
files are in the mb directory; there are no subdirectories like /de/de1
or similar.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: espeak-ng 1.49.2+dfsg-8
ProcVersionSignature: Ubuntu 5.3.0-40.32-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.4
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Feb 20 05:08:20 2020
InstallationDate: Installed on 2017-09-03 (899 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: espeak-ng
UpgradeStatus: Upgraded to eoan on 2020-01-18 (32 days ago)

** Affects: espeak-ng (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug eoan

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https://bugs.launchpad.net/bugs/1863981

Title:
  espeak-ng cannot load mbrola language files

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