"In software, an audio codec is a computer program implementing an algorithm that compresses and decompresses digital audio data according to a given audio file or streaming media audio coding format. The objective of the algorithm is to represent the high-fidelity audio signal with minimum number of bits while retaining quality." (wikipedia)
Oreka AC (Audio Capture) streaming audio capture solution for speech analytics supports Opus, the highest fidelity and highest bitrate codec. This means your analytics results are the most accurate, based on crystal clear audio transcription.
Image source: opus-codec.org
Opus is distinguished from most high quality formats (e.g.: Vorbis, AAC, MP3) by having low delay (5 ~ 66.5 ms). It is unique from most low delay formats (e.g.: Speex, G.711, GSM) by supporting high audio quality (narrow-band all the way to full-band audio). It meets or exceeds existing codecs' quality across a wide range of bitrates, and it operates at a lower delay than virtually any existing compressed format.
- Easy to adopt
- Compatible with free software
- Suitable for use as part of the basic infrastructure of the Internet