Install and use the speechall CLI tool for speech-to-text transcription. Use when the user wants to: (1) transcribe audio or video files to text, (2) install speechall on macOS or Linux, (3) list available STT models and their capabilities, (4) use speaker diarization, subtitles, or other transcription features from the terminal. Triggers on mentions of speechall, audio transcription CLI, or speech-to-text from the command line.

安装并使用 speechall 命令行工具进行语音转文本转录。适用于用户需要：（1）将音频或视频文件转录为文本，（2）在 macOS 或 Linux 上安装 speechall，（3）列出可用的语音识别模型及其功能，（4）通过终端使用说话人分离、字幕或其他转录功能。当提及 speechall、音频转录命令行工具或命令行语音转文本时触发。