All audio that we stream must be in the same format: for this reason, sometimes it is necessary to transcode the audio files that are uploaded so that we can store them in the same format as every other file on the platform.
If you are uploading a compressed file to Spreaker and it is not in our internal format (see below for specs.) we need to transcode it and this double-processing can lead to audible audio artifacts.
In order to get maximum quality from your Spreaker uploaded files you can either upload them in uncompressed - or lossless compressed - format (e.g. wav of flac) or compress them using the same format we use; this way they will not be transcoded.
Spreaker Storage Format
Codec: mp3
Channels: Stereo (no joint stereo)
Sampling rate: 44.1KHz
Bitrate: 128kbps, CBR (Constant Bit Rate)