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Audio Basis - Educational articles


Audio Basis is series of educational articles by Audiophile Inventory for learning of bases of digital audio processing and audio devices.

Intended for people who want to learn more about audio but have no special knowledges and/or education.

Audio Basis intended for audiophiles, music producers, sound producers, students and other people.

DSD format >    PCM format >    Lossless >   Sample rate >    Bit depth >    Digital filters >
General processing issues >    CD ripping >    Tests >    Ultrasound >    Prospectives of audio >

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DSD format

What is Audio Formats DSD 2.8 DSD64 DSD5.6 DSD128 DSD256 DSD512 DSD1024 >

What Inside DSD Converter of Audio Files >

How work sigma delta modulation in audio >

DSD Decoder for Audio >

What is DSF audio file format? >

File Extension DSF >

DSD and PCM. Competitors? >

How Impact to Audio Quality of PCM to DSF Conversion. 1-bit DSF vs. PCM >


PCM format

WAV 64 bit - RF64 - MBWF >



WAV and FLAC. Identical by binary or not? (video) >


Sample rate

Sample Rate Conversion >

Oversampling >

Downsampling >

How oversample DSF audio file >

DSF oversampling. D64 vs. D128 >

What Better Multiple or Non-Multiple Resampling >

Would need sample rates 352 and 384 kHz >

Audio Converter for High Resolution Music Files (video) >


Bit depth

What is dithering audio? >

Bit-Depth Audio and Harmonic Distortions >


Digital filters

What Is Ringing Audio >


General processing issues

64-bit audio processing. Necessity or redundancy >

What is Audio Converter >


CD ripping

Safe Audio CD Ripping Technology >

How to Choose the best CD ripper software >

What is optimization audio for DAC >



Hearing Test vs. Measurements Audio. Where True? >

Why We Can't Compare Different Audio Formats >



Audio as Optics >

What is optimization audio for DAC >

Experiment: How to listen ultrasound noise (video) >


Prospectives of audio

Where is the Limit of Audio Quality? >


Last News

How to Convert m4a to WAV on Mac OSX, Windows [Article]


Tutorial how to convert m4a to wav audio files under Windows, Mac OS X to playback at capable digital music players, car stereo and other music devices and software.

What is FLAC File [Article]

FLAC (Free Lossless Audio Codec) is audio codec to lossless compression and file container for music stuff. This file have extension like the codec name.

"Lossless" mean "original and compressed audio content are fully identical binary".

Sound quality issues are reviewed below.

Where is the Limit of Audio Quality?

I read many endless discussions about audio equipment: cables, lossless vs. lossy, compression algorithms, jitter, ultrasound, playback files from different places of hard disk, power conditioners, etc.

I suppose, reason of the discussions is small perceived sound difference, that is not obvious for everybody, or no difference.

It is the end of high-end?

Below I want to discuss: can we get sound improvement, obvious for almost everyone, in future audio equipment?


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