Обзор Phonon-2

Implements Whisper in pure C/C++ with zero runtime dependencies and tailored hardware acceleration for Apple Silicon, x86 AVX, and low-power devices.

It consumes more memory and has higher latency per audio minute than Phonon-2's heavily quantized FastConformer architecture. However, it supports broad multilingual transcription and runs on virtually any architecture with no Python or ML runtime required.

Wraps OpenAI Whisper models in CTranslate2 to achieve high-throughput 8-bit quantized execution across both CPU and CUDA environments.

Model files and runtime memory footprints are much larger (hundreds of megabytes to gigabytes) than Phonon-2's compact 164 MB size. In return, you get mature batching, multilingual support, and seamless integration into standard Python production pipelines.

Provides an offline, standalone runtime via ONNX Runtime supporting Next-gen Kaldi, Whisper, and NeMo Conformer/TDT models across mobile, embedded, and desktop platforms.

Configuring and bundling the correct ONNX weights and tokenizers involves more manual plumbing than Phonon's turn-key CLI. However, it frees you from platform-specific frameworks and runs efficiently on everything from Raspberry Pis to mobile apps.

Native Swift framework optimized to run full-precision and quantized Parakeet-TDT models directly on the Apple Neural Engine and macOS/iOS devices.

It is strictly constrained to the Apple ecosystem (macOS and iOS) rather than general Linux or Windows servers. If you are developing on Apple silicon, it executes the unquantized or INT8 Parakeet baseline natively without depending on Python or MLX.