Audio to Mel Spectrogram Node

A

AI/ML/ONNX/Audio

Audio to Mel Spectrogram

Convert audio to mel spectrogram for speech models

audio_to_mel_spectrogramonnx

Inputs5

Outputs3

Security exposure10/10

Packageonnx

Ratings

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Input Pins

5

Input

Execution

exec_in

Initiate Execution

Audio

Struct

audio

Input audio (16kHz mono)

SchemaAudioDataAudioDataAudioData4 fields

sample_rateinteger:uint32required

Sample rate in Hz

format uint32min 0

channelsinteger:uint16required

Number of channels (1 = mono, 2 = stereo)

format uint16min 0max 65535

samplesArray<number:float>required

Audio samples (normalized to -1.0 to 1.0)

itemsnumber:floatarray item

format float

duration_secsnumber:floatrequired

Duration in seconds

format float

N Mels

Integer

n_mels

Number of mel bands

Default 80

Hop Length

Integer

hop_length

Hop length in samples

Default 160

N FFT

Integer

n_fft

FFT window size

Default 400

Output Pins

3

Output

Execution

exec_out

Done

Spectrogram

Generic

spectrogram

Mel spectrogram [n_mels, time]

Frames

Integer

frames

Number of time frames

Node Info

Internal name

audio_to_mel_spectrogram

Category

AI/ML/ONNX/Audio