FireRed ASR 2

March 14, 2026 ยท View on GitHub

Swift support for FireRed ASR 2 in MLXAudioSTT.

Supported Model

Swift Example

import MLXAudioCore
import MLXAudioSTT

let (_, audio) = try loadAudioArray(from: audioURL, sampleRate: 16000)

let model = try await FireRedASR2Model.fromPretrained("mlx-community/FireRedASR2-AED-mlx")
let output = model.generate(audio: audio)
print(output.text)

let output = model.generate(
    audio: audio,
    beamSize: 5,
    softmaxSmoothing: 1.25,
    lengthPenalty: 0.6,
    eosPenalty: 1.0,
    maxLen: 0
)

Notes

  • Input audio should be mono 16 kHz. loadAudioArray(from:sampleRate:) can resample automatically.