Audio format

Automatic audio format detection

Soniox supports and automatically detects most common audio formats from file headers, so you don't need to manually set audio configs when using the supported file formats.

Supported file formats

• mp3, wav, flac, ogg, aac, aiff, amr, and asf.
• When using supported file formats, the audio_format, sample_rate_hertz and num_audio_channels TranscriptionConfig fields should not be set.

Raw audio samples

It is possible to send raw (PCM) audio samples instead of a container format. The supported formats are listed below. For example, pcm_f32le means float-32 little endian.

When using a raw format, the following TranscriptionConfig fields must be set.

Example

This example shows how to transcribe audio encoded in PCM 16-bit little endian at 16 kHz sample rate and using 1 channel.

for result in transcribe_stream(
    iter_audio(),
    client,
    model="en_v2_lowlatency",
    include_nonfinal=True,
    audio_format="pcm_s16le",
    sample_rate_hertz=16000,
    num_audio_channels=1,
):