The biggest issue with Voispark is its limited context window. I also use another voice tool, Unmixr (available on AppSumo), which allows previewing before finalizing output. This feature helps me avoid burning through credits quickly. Unmixr also offers a much longer context window, which keeps the voice consistent across generations. Unmixr is the best i have experienced in terms of consistency but i wanted to look around to see if i could find even better voices which led me to looking at voispark.

Voispark’s voices are noticeably higher quality but unfortunately, they lack consistency between generations, often causing mismatched tones and flow. This problem stems from Voispark’s 3000 character context window, which makes it very difficult to maintain a natural, consistent output.

I’ve wasted a lot of credits trying to get new generations to match the flow of the first. The voices themselves are excellent, but the current limitations on the context window length make the voices inconsistent which results in a frustrating experience and wasting lots of credits due to these pitfalls. If these issues are resolved, I’d be open to upgrading my review.

Specific issues that need to be fixed:

1. Context window too small (3000 characters): Makes it difficult to maintain tone and flow across generations.

2. No preview option: Causes unnecessary credit usage when results don’t meet expectations.

3. Inconsistent voice quality across multiple generations: ElevenLabs sounds the best, but it loses consistency on re-runs. Minimax is natural but inserts awkward pauses.

4. Audio cut-off issue: Sometimes the generated audio ends abruptly, omitting part of the text that was very much in the context window, yet i still end up getting charged credits for the missing audio that wasn't generated at the end. Also forces me to waste more credits to regenerate the last sentence that was abruptly cut-off.

These problems make it hard to rely on Voispark despite its strong voice quality. Please address them as soon as possible.