Download HQPlayer here: https://www.signalyst.com/consumer.html
A review and discussion of HQPlayer including why upsampling can improve audio, which filter settings do what, which noise shaping and modulation settings are best, and my preferred settings for HQPlayer. Plus, can HQPlayer replace a Chord M-Scaler or make an affordable Sigma Delta DAC sound as good as a Chord TT2 and M-Scaler?
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00:00 Introduction
01:27 Why use an upsampler?
02:54 A bit more about HQ Player
05:17 My approach to the review
07:29 Testing setup
08:27 Testing attenuation length
11:20 sinc-m filter tests
17:52 My biggest issue with HQ Player
23:07 Linear vs minimum phase test
24:27 poly-sinc-gauss tests
26:10 poly-sinc-gauss vs closed-form-M
30:57 Dithering & noise shaping tests
34:23 Sigma Delta tests (DO300)
36:05 SDM filter preferences
36:30 SDM modulator tests
38:57 Initial PCM & SDM conclusions
40:56 HQ Player vs Chord M-Scaler
43:34 TT2 & M-Scaler vs SMSL DO300 & HQ Player
46:56 Final conclusions
#audiophile #audioreview #hqplayer