Generate German subtitles for your Czech videos

Line length in German

German welds nouns together into single long words, so a sentence that fitted comfortably as Czech can overflow the same subtitle box once translated. The word count barely moves; the character count does.

Shorter blocks are the fix. Splitting a long line across two subtitle events costs nothing — the timings come from the original speech either way and stay in sync.

How Czech audio becomes German subtitles

Audio in Czech (Čeština) is transcribed first, then translated into German (Deutsch). Because the translation runs on the transcript rather than on the audio, the German subtitle file keeps the timings of the original Czech speech — each line appears at the moment it was actually said.

Searching a Czech transcript

Czech is heavily inflected, so the same term appears in a range of forms rather than repeating identically. That is correct output, but it means searching the transcript for a keyword will miss most of its occurrences unless you search for the stem.

It matters here because the German translation collapses much of that variation, and the two files will not line up term for term even though they line up line for line.

Why translate Czech video into German

Czech is spoken principally in Czechia; German in Germany, Austria and Switzerland. A German subtitle track is what lets one recording reach both audiences without re-recording, re-editing or dubbing it.

Because subtitles are a separate file rather than part of the picture, you can attach several language tracks to the same video and let viewers pick.

About the Czech audio

Czech permits syllables built entirely from consonants, so a run of letters with no vowel in it is usually correct rather than a dropped character. The everyday spoken register differs from the written standard in its endings, and transcription follows what was said rather than correcting it upward.

About the German subtitles

German compounds nouns freely, producing long single words that make subtitle lines run wide — shorter blocks help. Swiss and Austrian varieties differ from standard German considerably in speech, and Swiss German especially is a real test of any recogniser.

What a Czech to German subtitle file looks like

Four lines of Czech speech, transcribed and translated, as they come out of the exported SRT. The timings are the Czech speaker's — translation does not move them, which is why the file drops onto the original video unchanged.

1
00:00:01,000 --> 00:00:03,240
Danke, dass Sie alle gekommen sind.

2
00:00:03,600 --> 00:00:06,120
Beginnen wir mit der ersten Frage.

3
00:00:06,480 --> 00:00:09,300
Schreiben Sie Ihre Fragen unten.

4
00:00:09,700 --> 00:00:12,040
Bis zum nächsten Mal.

What to check before publishing

• Names and places, which translation handles less reliably than ordinary prose.
• Idiom — a phrase that is natural in Czech may need loosening to read well in German.
• Line width, since German packs the same sentence into longer words than Czech does.
• Timing on fast exchanges, where two speakers overlap.