diff --git a/f/FFTW/FFTW-3.3.8-intel-2020a.eb b/f/FFTW/FFTW-3.3.8-intel-2020a.eb
index 80037ba9..f4e9271f 100644
--- a/f/FFTW/FFTW-3.3.8-intel-2020a.eb
+++ b/f/FFTW/FFTW-3.3.8-intel-2020a.eb
@@ -12,6 +12,7 @@ toolchainopts = {'pic': True}
 
 source_urls = [homepage]
 sources = [SOURCELOWER_TAR_GZ]
+checksums = ['6113262f6e92c5bd474f2875fa1b01054c4ad5040f6b0da7c03c98821d9ae303']
 
 # no quad precision, requires GCC v4.6 or higher
 # see also
diff --git a/s/SoX/SoX-14.4.2-GCC-11.3.0.eb b/s/SoX/SoX-14.4.2-GCC-11.3.0.eb
new file mode 100644
index 00000000..441c8f74
--- /dev/null
+++ b/s/SoX/SoX-14.4.2-GCC-11.3.0.eb
@@ -0,0 +1,34 @@
+# Institution: IT4Innovations National Supercomputing Center, Czech Republic
+# Author: Jakub Kropacek
+# License: GPLv3
+# Year: 2022
+
+easyblock = 'ConfigureMake'
+
+name = 'SoX'
+version = '14.4.2'
+
+homepage = 'http://sox.sourceforge.net/'
+docurls = 'http://sox.sourceforge.net/Docs/Documentation'
+description = """Sound eXchange, the Swiss Army knife of audio manipulation"""
+
+toolchain = {'name': 'GCC', 'version': '11.3.0'}
+
+source_urls = ['https://sourceforge.net/projects/sox/files/sox/%(version)s']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['b45f598643ffbd8e363ff24d61166ccec4836fea6d3888881b8df53e3bb55f6c']
+
+dependencies = [
+    ('FLAC', '1.3.4'),
+    ('LAME', '3.100'),
+    ('libvorbis', '1.3.7'),
+    ('FFmpeg', '5.0.1'),
+]
+
+sanity_check_paths = {
+    'files': ['bin/play', 'bin/rec', 'bin/sox', 'bin/soxi', 'include/sox.h',
+              'lib/libsox.la', 'lib/libsox.a', 'lib/pkgconfig/sox.pc', 'lib/libsox.%s' % SHLIB_EXT],
+    'dirs': ['bin', 'include', 'lib', 'lib/pkgconfig', 'share/man'],
+}
+
+moduleclass = 'data'
diff --git a/s/SoX/SoX-14.4.2.eb b/s/SoX/SoX-14.4.2.eb
deleted file mode 100644
index 32af840a..00000000
--- a/s/SoX/SoX-14.4.2.eb
+++ /dev/null
@@ -1,28 +0,0 @@
-# IT4Innovations 2021
-# JK
-
-easyblock = 'ConfigureMake'
-
-name = 'SoX'
-version = '14.4.2'
-
-homepage = 'http://http://sox.sourceforge.net/'
-description = """Sound eXchange, the Swiss Army knife of audio manipulation"""
-
-toolchain = SYSTEM
-
-sources = [SOURCELOWER_TAR_GZ]
-source_urls = ['https://sourceforge.net/projects/sox/files/sox/%(version)s']
-
-# These are not strictly mandatory but add flac and mp3 support to SoX
-dependencies = [
-    ('FLAC', '1.3.1'),
-    ('LAME', '3.100')
-]
-
-sanity_check_paths = {
-    'files': ['bin/sox', 'include/sox.h', 'lib/libsox.%s' % SHLIB_EXT],
-    'dirs': [],
-}
-
-moduleclass = 'data'