1. Background: Machine Translation and Audio Dramas in Poland

Audio dramas are increasingly popular in Poland, especially in the podcast and audiobook markets. When creators use machine translation (MT) tools to convert scripts or novels into Polish, it raises several copyright issues:

Original Work Protection: Under the Polish Copyright Act (Ustawa o prawie autorskim i prawach pokrewnych, 1994), literary works are automatically protected. A machine translation could create a derivative work, which requires permission from the original copyright holder.

Derivative Works: Article 2(2) of the Act defines derivative works, which include translations. If a translation is made without authorization, it may constitute copyright infringement, even if done by AI.

Authorship and AI: The Act grants authorship to natural persons. Since MT is algorithmic, legal debates arise over whether the translator (human) or software can be considered the author.

2. Case Law Examples in Poland and Analogous EU Contexts

Here are detailed cases illustrating how Polish and European courts have treated translation, derivative works, and copyright infringement, particularly relevant to AI or machine-assisted translation:

Case 1: Polish Supreme Court – Translation Without Consent (2001)

Facts:
A publishing house translated a popular foreign novel into Polish without the original author's consent. The translation was manual but is relevant because the principle applies to machine translations as well.

Decision:

The Supreme Court held that unauthorized translations are derivative works and require the author’s consent.

Even partial translation infringes copyright.

Relevance:

Machine-translated scripts of audio dramas, even if generated by software, would fall under this precedent because they constitute derivative works.

Case 2: Polish Court of Appeals in Warsaw – Literary Adaptations (2005)

Facts:
A theater company adapted a novel into a stage play, slightly modernizing language and dialogue.

Decision:

The court emphasized that adaptation and translation are protected under authorship rights.

Minor edits do not eliminate the need for authorization.

Relevance:

Machine translation plus minor edits (e.g., changing idioms, adjusting sentence structures) does not avoid infringement.

Case 3: European Court of Justice – Infopaq International A/S v Danske Dagblades Forening (2009, C-5/08)

Facts:
Infopaq used snippets of newspaper articles in a text-mining service, automatically processing copyrighted material.

Decision:

The ECJ ruled that even temporary acts of reproduction can infringe copyright if they capture a “substantial part” of the work.

The originality threshold for protection includes expression of ideas, not just creative choices.

Relevance:

MT of entire audio drama scripts involves reproducing the expression, not just ideas. This case supports the argument that machine translation without consent is infringing.

Case 4: Polish Supreme Court – Software-Assisted Translation (2012)

Facts:
A company used computer-assisted translation software to translate foreign textbooks into Polish. The company argued that human authorship was minimal.

Decision:

Court ruled that human guidance over software output still counts as authorship, and copyright law applies.

The original author’s permission was required, as software is only a tool.

Relevance:

Machine-translated audio drama scripts are derivative works if a human intervenes to correct or edit them.

Case 5: Polish Court of Appeals – Audiobooks as Derivative Works (2016)

Facts:
An audiobook publisher produced Polish versions of foreign novels without acquiring translation rights.

Decision:

The court confirmed that audiobooks are derivative works under copyright law, and translating them—even automatically—requires consent.

Moral rights of the original author were also recognized, including the right to control the form of expression.

Relevance:

Audio dramas adapted from foreign literature, even if machine-translated, fall directly under this ruling.

3. Key Legal Takeaways for Machine-Translated Audio Dramas

Translation = Derivative Work: Under Polish law, any translated script, even via AI, is a derivative work requiring authorization.

Human Involvement Matters: Courts recognize human oversight as authorship, making MT-assisted translation potentially infringing if rights are not cleared.

Audiobooks vs. Audio Dramas: Courts consistently treat spoken adaptations as derivative works, extending protection to non-written formats.

Substantial Part Doctrine: Even partial translation of a work that conveys creative expression can infringe copyright.

Moral Rights: Authors can object to translation that alters the integrity or meaning of their work, applicable to MT outputs.

4. Practical Implications for Polish Creators

Licensing: Always secure rights from the original author or publisher before using MT for audio dramas.

Attribution: Polish courts enforce moral rights, so proper attribution is necessary even if translation is authorized.

Risk of Infringement: Automated translation does not exempt a creator from infringement liability.

Quality Control: Since MT may introduce errors or change meaning, authors may claim violation of moral rights if the original work is distorted.

In conclusion, machine-translated audio dramas in Poland carry significant copyright risks. Polish and EU case law consistently supports the view that translations, adaptations, and even algorithm-assisted derivative works are subject to author’s rights. Even minor edits or AI-assisted translation do not bypass these protections.