Converts audio channels (mono/stereo/multi-channel handling). — ComfyUI node from Audio Batch. Run it in the cloud, no install required.

Audio batch creation, extraction, information, resample, mono and stereo conversion.
Also cut, concatenate, blend (mix) and de/normalize. Join/split channels (stereo).
Signal generator (`sine`, `square`, `sawtooth`, `triangle`, `sweep`, `noise`).
Musical note to frequency.
Audio downloader for quick workflows which downloads its example data.

Audio Batch

audio

channel_conversion

downmix_method

n_fft

hop_length

Converts audio channels (mono/stereo/multi-channel handling).

Name	Type	Default	Description
audio	AUDIO		—
channel_conversion	COMBO	keep	keep: maintain same channels, stereo_to_mono/force_mono: 1 channel, mono_to_stereo/force_stereo: 2 channels
downmix_method	COMBO	standard_gain	Method for stereo/multi-channel to mono conversion: - average: Simple average ((L+R)/2). Can reduce volume. - standard_gain: Sums channels with -3 dB gain (0.707). Better preserves perceived loudness.- spectral: Averages frequency magnitudes to prevent phase cancellation.
n_fftopt	INT	2048256–8192	FFT size for spectral downmixing. Higher values give better frequency resolution but worse time resolution.
hop_lengthopt	INT	51264–4096	Hop length for STFT. Typically n_fft / 4. Controls time resolution.

Audio Channel Converter

Inputs (5)

Outputs (1)