We have this string in the po file:

#: ../src/tests/resampler-test.c:255
#, c-format
msgid ""
"%s [options]\n"
"\n"
"-h, --help                            Show this help\n"
"-v, --verbose                         Print debug messages\n"
"      --from-rate=SAMPLERATE          From sample rate in Hz (defaults to "
"44100)\n"
"      --from-format=SAMPLEFORMAT      From sample type (defaults to s16le)\n"
"      --from-channels=CHANNELS        From number of channels (defaults to "
"1)\n"
"      --to-rate=SAMPLERATE            To sample rate in Hz (defaults to "
"44100)\n"
"      --to-format=SAMPLEFORMAT        To sample type (defaults to s16le)\n"
"      --to-channels=CHANNELS          To number of channels (defaults to 1)\n"
"      --resample-method=METHOD        Resample method (defaults to auto)\n"
"      --seconds=SECONDS               From stream duration (defaults to 60)\n"
"\n"
"If the formats are not specified, the test performs all formats "
"combinations,\n"
"back and forth.\n"
"\n"
"Sample type must be one of s16le, s16be, u8, float32le, float32be, ulaw, "
"alaw,\n"
"s24le, s24be, s24-32le, s24-32be, s32le, s32be (defaults to s16ne)\n"
"\n"
"See --dump-resample-methods for possible values of resample methods.\n"
msgstr ""

However the path of the file tells me that may be this is not a utility actual users would see. 
In this case translating this text is pointless, please remove the translatable mark from it.