📄 中文摘要
ACX（Audible 的有声书市场）为旁白员支付每小时 200 至 400 美元的费用，制作一本 10 小时的有声书需要 2000 至 4000 美元。然而，使用 AI 旁白的同样有声书成本仅约 5.40 美元。10 小时的有声书大约包含 90,000 字，约 540,000 个字符，按每千字符 0.01 美元计算，总费用为 5.40 美元。适合 AI 旁白的内容包括非虚构类书籍（如商业书籍、自助书籍、技术指南和操作手册）、教育内容（如课程和参考材料）、新闻通讯和博客的音频版本，以及短篇小说等短篇作品。
📄 English Summary
Self-Publishing an Audiobook with AI Voice: A Developer's Guide
ACX (Audible's audiobook marketplace) pays narrators between $200 and $400 per finished hour, making the production cost for a 10-hour audiobook range from $2,000 to $4,000. In contrast, an audiobook narrated by AI costs approximately $5.40. A typical 10-hour audiobook contains around 90,000 words, equating to about 540,000 characters. At a rate of $0.01 per 1,000 characters, the total cost amounts to $5.40. Content that works well with AI narration includes non-fiction books (business, self-help, technical guides, how-to content), educational materials (courses, explainers, reference material), audio versions of newsletters and blogs, and short fiction such as short stories.