I want to know the answer to the following question:
Decoders are usually compared by examining which factor?
All the background I'm provided with is that "Most decoders are "bitstream compliant", which means that the decompressed output that they produce from a given MP3 file will be the same, within a specified degree of rounding tolerance, as the output specified mathematically in the ISO/IEC high standard document (ISO/IEC 11172-3).". Is that enough to answer the question?