This post is short and simple: your mp3 or ogg files played on VoxEngine scenario level with call.startPlayback or using Player will be played on the Web or Mobile SDK side in HD quality (48KHz), or on SIP side if it does support wideband audio codecs (Speex or Opus). It also appeared that Opus has 3 encoding presets - auto / speech / music, currently we use auto, but maybe we will let developers decide which preset can be used on VoxEngine scenario level later.
Introducing OpenAI Realtime API Client
OpenAI has launched its beta Realtime API, revolutionizing voice assistants with speech-to-speech interactions, ultra-low latency, and realistic voices. Voximplant’s integration makes it easy to connect calls to OpenAI's models, enabling seamless, human-like conversations with minimal setup.