Popular Post Miska Posted December 31, 2017 Popular Post Share Posted December 31, 2017 3 hours ago, GUTB said: The goal of MQA is to deliver the contents of the orange triangle precisely, with increased and extreme precision, while avoiding temporal blur or noise modulation in the converters. To achieve this MQA goes ‘beyond lossless’ in the sense that it has at its core a realisation that ‘lossless’, as the term is usually used, is no guarantor of ultimate sound quality because it does not embrace the A/D and D/A conversion, volume control etc. The "orange triangle" is referring this diagram: Notice where the orange triangle is? That is the area MQA is concerned with. Therefore, the claim the presenter makes that 192/24 files are not lossless is correct, but it's also irrelevant to MQA claims, and doubly irrelevant to the DRM claim which I'm sure we'll get to (eventually?) MQA fails to do that, because their filter frequency response rolls off the 20 - 40 kHz octave. In addition that triangle is only valid for classical music and such, but not something where the frequency response looks more like a square like in close-miked rock. Or music created in digital domain by soft synths (note - no ADC involved in such case)! MQA cannot do anything about noise modulation in converters because it operates purely in PCM domain, unless you consider the significantly reduced SNR as such, hiding any noise modulation in increased noise floor. 3 hours ago, GUTB said: Other questions re: MQA filtering strategy based on his and Hotto's (CA's) opinions. MQA's filtering strategy goes against sampling theory and produces distorted results, in addition with high-frequency roll-off that actually reduces the transient/timing performance. Completely against their claims. 3 hours ago, GUTB said: Where's the DRM? The MQA encoded data is encrypted and signed. DRM controls that only "approved decoders" can decode the content, trying to ensure that MQA Ltd has full control over who/how/where the decoding can happen. This DRM is trying to prevent you for example converting the MQA encoded content to a standard 96 kHz 24-bit FLAC, WAV or AIFF. DRM also controls who/how/where can encode MQA content. The DRM is protecting money flow from encoding and decoding to MQA Ltd. crenca, kumakuma, Sonic77 and 11 others 9 3 2 Signalyst - Developer of HQPlayer Pulse & Fidelity - Software Defined Amplifiers Link to comment
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