Most importantly, both formats should provide you with premium audio. DTS HD Master Audio – 7.1ch has its maximum sound capped at 24.5 Mbps (lossless quality), while Dolby TrueHD – 7.1ch has its maximum sound capped at 18 Mbps (lossless quality available on Blu-Ray discs).Ĭomparing DTS and Dolby digital is a bit tricky, because higher bitrates do not always mean higher quality.DTS requires significantly low compression of about 4:1, which is why it is common with DVDs. 640kbits/s is only applicable to Blu-Ray discs, which is why you see Blu-ray Discs using Dolby digital.Dolby digital compresses to a raw bit rate of 640 kilobits per second (kbps), and in contrast DTS compresses to approximately 768 kilobits per second. The main difference is in the bit rates and compression levels.
The result is a preservation of the high fidelity sound. Basically, DTS and Dolby Digital formats utilize perceptual data reduction techniques, in order to remove futile data in PCM signal output.
