However, a number of factors do still affect the encoded audio quality and size. There is no video track on the file, the file is typically referred toĪs an MP3 file, even though it's still an MPEG format file.īecause encoded audio inherently uses fewer bits to represent each sample, the source audio format may actually have less impact on the encoded audio size than one might expect. When MPEG-1 Audio Layer III codec data is stored in an MPEG file, and Pulse Code Modulation (PCM) of Voice Frequencies In addition, browsers may choose to support additional codecs not included on this list. Of course, individual browsers may or may not choose to support all of these codecs, and their support for which container types can use them may vary as well. If all you need to know is which codecs are even possible to use, this is for you. The list below denotes the codecs most commonly used on the web and which containers (file types) support them. See Codecs used by WebRTC for details.įor information about the fundamental concepts behind how digital audio works, see the article Digital audio concepts. In this article, we look at audio codecs used on the web to compress and decompress audio, what their capabilities and use cases are, and offer guidance when choosing audio codecs to use for your content.Īdditionally, WebRTC implementations generally use a subset of these codecs for their encoding and decoding of media, and may support additional codecs as well, for optimal cross-platform support of video and audio conferencing, and to integrate better with legacy telecommunication solutions. The processing of audio data to encode and decode it is handled by an audio codec ( COder/ DECoder). For web developers, an even bigger concern is the network bandwidth needed in order to transfer audio, whether for streaming or to download it for use during gameplay. Even modest quality, high-fidelity stereo sound can use a substantial amount of disk space.
0 Comments
Leave a Reply. |