Patent ID: 8626494
Filing Date: 2014-01-07
Classification: G10H,G10L,G11B

Abstract:
1. An encoder for compressing a plurality of independent mono audio channels into a recording using a lower sample rate and generating a restricted set of additional parameters used to master an audio track of a storage device, each channel comprising a first number of samples per unit time, the plurality of compressed independent mono audio channels being constructed such that the storage device can be played using a solid state disk player so that in a first mode all of the plurality of the compressed independent mono audio channels are played as the recording and in a second mode at least one of the plurality of compressed independent mono audio channels can be played using the recording, the playback being perceived as recorded at higher sample rates, the plurality of independent mono audio channels being stored on the storage device as less than the number of samples per unit time from each audio channel with the addition of calculated values, calculated using an interpolating filter with filter parameters, for intermediate samples, the calculated intermediate samples approximating the intermediate samples of the audio channels, the filter parameters being stored on the storage device in the additional parameters.