Audio

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HydrogenAudio

RareWares

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Lossy Audio Compression

Results of the public multiformat listening test (July 2014)

Opus

Opus - Hydrogenaudio Knowledgebase

Bitrate target	Music quality	Use cases
128 kbps	Very close to transparency. Most modern codecs competitive (AAC-LC, Vorbis, MP3)	Music storage & streaming. Future download music sales.

AAC

nu774/qaac: CLI QuickTime AAC/ALAC encoder

xHE-AAC

exhale

xHE-AAC with SBR

Bitrate target	Settings	Use cases
48 kbps	Preset b	Speech

Ogg Vorbis

Oggenc using libVorbis - aoTuVb (Lancer Builds)

Recommended Ogg Vorbis - Hydrogenaudio Knowledgebase

Switch	VBR target(kbit/s)	VBR range(kbit/s)	Music quality
-q 4	~128	~128 – ~160	Default
-q 5	~160	~160 – ~192	Transparency

MP3

LAME MP3 Encoder

Switch	VBR target(kbit/s)	Music quality
-V 2	~192	Transparency
-V 3	~176	Default
-V 5	~128	Normal

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Lossless Audio Compression

Mac

X Lossless Decoder: Lossless audio decoder for Mac OS X

XLD - Hydrogenaudio Knowledgebase

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Bluetooth Audio

Understanding Bluetooth codecs - SoundGuys

Audio over Bluetooth: most detailed information about profiles, codecs, and devices / Habr

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EQ

AutoEQ

jaakkopasanen/AutoEq: Automatic headphone equalization from frequency responses (github.com)

Results

Recommended Results

Recommendation priority is: oratory1990 > Crinacle > Innerfidelity > Rtings > Headphone.com > Reference Audio Analyzer.

oratory1990

index - oratory1990 (reddit.com)

oratory1990 measurements have been done on Gras 43AG and 43AC couplers, the same which were used to develop Harman target responses by Olive et al. and therefore use Harman target responses for the equalization targets. These results are recommended over all other measurements because of this reason. Harman target data is in the compensation folder.

Crinacle

crinacle's IEM Ranking List – In-Ear Fidelity crinacle's Headphone Ranking List – In-Ear Fidelity

Crinacle's in-ear measurements have been performed with IEC 60318-4 coupler and are therefore compatible with Harman in-ear targets. This fact also earns Crinacle's measurements second highest ranking recommendation after oratory1990. Crinacle's over-ear measurements use the same ear simulator attached to a MiniDSP ears pinna. The measurements done on this system are not as accurate as oratory1990's but because of the high quality ear simulator, these are a bit better than rest.

Rtings

Headphones Table Tool - RTINGS.com

Innerfidelity, Rtings and Headphone.com measurements have been performed on Head Acoustics HMSII.3 measurement system. This system is not an industry standard anymore because of the rigid pinnae.

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Headphones

Home | Bad Guy Good Audio Reviews – Bad Guy Good Audio Reviews

Bad Guy Good Audio Reviews Earphones/Headphones ranking list - Google 表格

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Amplifier

Dongle

#donglemadness – Andy.EF AudioVault (andyaudiovault.com)