Description: HQPlayer 4 Desktop – upsampling multichannel audio player for Windows.
Features:
Software upsampling / downsampling with selectable algorithm up to 32-bit 1.536 MHz or down to 8-bit 32 kHz PCM (28 options, most “apodizing”)
Delta-Sigma modulators for upsampling PCM/DSD content up to 98.304 MHz 1-bit SDM (11 modulators, 30 PCM oversampling options and 2 DSD rate converters)
Selectable dithering / noise shaping algorithm (9 options)
Selectable convolution algorithm (FIR) for equalization, such as digital room correction (2 options), for PCM/DSD content
Optional high-frequency expansion for the convolution engine
Software-based digital volume control for PCM and SDM (DSD)
Playback of DSF/DSDIFF files through any supported audio interface (PCM conversion and DSD rate conversion)
Selectable algoritm and noise filters for DSF/DSDIFF PCM playback (11 / 8 options)
Native/direct playback of DSF/DSDIFF files (ASIO DSD, DoP v1.1 with both 0x05/0xFA and 0x06/0xF9 markers)
Playback of stereo, 2.1, 3.0, quadrophonic, 3.1, 5.0, 5.1 and 7.1 channel material
Speaker configuration for multichannel playback (delay and level) for PCM and SDM (DSD)
Matrix processing for routing, filtering and mixing channels with gain, for PCM/DSD content
Bypasses operating system software mixer and sample rate conversion
Support for professional ASIO drivers
Network endpoint support with Signalyst Asynchronous Network Audio Adapters
Support for ID3v2 tags on AIFF, DSF and WAV files (versions 2.2, 2.3 and 2.4)
Smooth level limiter for clipped material
“Dual wire” channel bonding support to reach 2x rates, PCM and DoP (DSD)
64/80-bit floating point processing
Full support for multi-core processors
Light weight desktop-GUI to lower graphics noise
Touch-aware remote control client
DSP offload to GPU using NVIDIA CUDA
Resampling filters:
13 linear phase
2 intermediate phase
8 minimum phase
3 impulse optimal
3 closed form
Dithers and noise-shapers:
4 dithers
5 noise shapers
Delta-Sigma conversion:
11 modulators
30 oversampling filters (64x – 2048x)
Direct rate conversions, 2 algorithms
Digital volume control
Convolution engine
Routing and mixing
External control applications:
HQPDcontrol
Roon
muso
Alchemy Desktop
HQPlayer is a high quality audio player for Windows, Linux and macOS. HQPlayer also features several selectable high quality upsampling and downsampling algorithms as well as selectable dither, noise shaping and modulator algorithms.
All modern DACs employ oversampling and delta-sigma modulation, however the hardware implementations are more or less resource constrained. Higher quality oversampling and delta-sigma modulation can be done by utilizing vast mount of processing power available in modern PCs. Many AVRs also resample internally to 48, 96 or 192 kHz, with the HQPlayer, these can be fed at the native rate.
Want to buy 192/24 or DXD files for future but currently own only 96/24 capable hardware? Or want to buy DSD128 or DSD256 files but currently own only DSD64 or 192/24 PCM capable hardware? Resampling and dither/noise shaper can be used to playback high resolution files on a lower resolution hardware, allowing future-proof investment on high resolution files.
System requirements, Windows version:
Windows 10 x64
Audio interface with support for WASAPI Exclusive or ASIO
CPU support for SSE4.2 instruction set
Display adapter with OpenGL support
Minimum full-HD resolution (1080p)
PDF reader softwareQuoteWhats New:
– Fixes regression in minimum phase filter initialization.
– Add splitter between pipeline and postprocess in matrix dialog.
– Small fixes.
In 4.5.0:
– Add support for ReplayGain 2.0 metadata specification, album gain can be applied when loaded in album mode, in playlist mode track gain can be applied.
– Add new sinc-S filter.
– Add PlayNextURI and SetAdaptiveVolume methods to the control API.
– Improved algorithm to combine multiple convolution filters.
– Parallelization consistency improvements.
– Bug fixes.https://www.signalyst.com/consumer.html
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