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license: apache-2.0
base_model: neuphonic/neucodec
tags:
- coreml
- audio
- speech
- codec
- ios
- mlpackage
---
# neucodec-coreml-decoder
CoreML (.mlpackage) conversion of [NeuCodec](https://huggingface.co/neuphonic/neucodec) decoder by Neuphonic.
Converts flat FSQ codes to 24kHz audio. Supports iOS 16+ / macOS 13+.
## Files
| File | Tokens | Duration |
|------|--------|----------|
| `neucodec_decoder_seq50.mlpackage` | 50 | 1s |
| `neucodec_decoder_seq100.mlpackage` | 100 | 2s |
| `neucodec_decoder_seq250.mlpackage` | 250 | 5s |
## I/O
- **Input** `codes`: shape `(1, 1, L)` Int32, flat FSQ indices 0-65535 at 50 tok/sec
- **Output** `audio`: shape `(1, 1, T)` Float32 at 24kHz
## Swift Usage
```swift
import CoreML
let config = MLModelConfiguration()
config.computeUnits = .cpuAndGPU
let model = try MLModel(contentsOf: compiledURL, configuration: config)
let codesArray = try MLMultiArray(shape: [1, 1, 100], dataType: .int32)
for i in 0..<100 { codesArray[i] = NSNumber(value: flatCode) }
let input = try MLDictionaryFeatureProvider(dictionary: ["codes": codesArray])
let output = try await model.prediction(from: input)
// output["audio"]: shape [1, 1, T], Float32 at 24kHz
```
## Source
[neuphonic/neucodec](https://huggingface.co/neuphonic/neucodec) — Apache 2.0
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