API Limits

The Speechace API has the following audio length and file size limits to be adhered to:

Limit	Basic	Pro	Premium
Max Audio Length	15 seconds	45 seconds	2 minutes
Max File Size	1.9 MB	2.5 MB	3.8 MB

Recording Audio

Speechace supports a wide range of audio formats commonly used on the web, including WAV, MP3, M4A, OGG, WEBM, and AIFF.

To optimize file size and enhance performance, we recommend recording audio using the following settings:

• sample size: 16-bit

• sample rate: 16Khz

• channels: 1 (i.e. mono)