Hi-Res Audio explained
Hi-Res Audio explained
Closer to the studio recording
High resolution audio brings you as close as possible to the original studio master recording, with a wide frequency bandwidth and a high dynamic range that exceeds the capabilities of CD and lossy formats such as MP3.
Retaining the details
High resolution files played on a Hi-Res Audio system retain the subtle details usually lost when using lower resolution formats. Benefits include improved bass timing and tightness, extra high frequency definition and detail, more open spatial sound and an improved overall perception of realism.
A new standard in audio
The Japan Audio Society (JAS) and the Consumer Technology Association (CTA) have developed stringent criteria for using the Hi-Res Audio logo. Products with this logo conform to the Hi-Res Audio standard defined by the Japan Audio Society. This logo is used under license from the Japan Audio Society. Headphones, speaker drivers and amplifiers credited with the Hi-Res Audio logo must produce a bandwidth of 40kHz and digital inputs and processing must be capable of handling at least 24bit/96kHz.Detailed JAS standard criteria
The superior digital format
The audio quality of files ranges from lossy formats, such as MP3, to high resolution files. For playback equipment to be eligible for the Japan Audio Society's logo, products must support a minimum of 24bit/96kHz.
The optimal high resolution audio experience
Achieving the highest quality audio playback requires both the source file and the audio system to support the high resolution format.
Creating a high resolution file
The original studio recording captures all of the details from the original performance including subtle changes in volume and high frequency information.
High resolution versus standard digital files
The higher sampling rate and bit depth of high resolution audio give a more accurate representation of the original, preserving all of the fine details.
Playing back a high resolution audio file
System frequency bandwidth
When a high resolution audio file is played back on a standard system, the high frequency details are lost.
Reconstructed analogue output
A Hi-Res Audio system is required to recreate the full details of a high resolution audio file.More digital audio basics
Onkyo pure sound
Pure sound requires more than Hi-Res Audio standards. Subtly nuanced sound is the product of attention to detail. Onkyo's experienced acoustic engineers carefully select and test every component and material, then optimise the acoustic tuning of the complete system. Regardless of the music source, all Onkyo Hi-Res Audio headphones and speakers are designed to deliver accurate detail and clear, refined sound.
The Onkyo audio chain
Onkyo Hi-Res Audio headphones and speakers are designed to deliver the best sound quality from any music format; from lossy to lossless to high resolution files. When downloading, managing and playing back your music, Onkyo will deliver accurate definition and clear, refined sound.
Onkyo high resolution music content
Studio quality recordings for every subtle detail from onkyomusic.comVisit www.onkyomusic.com
Onkyo Hi-Res Audio Playback
Manage and play high resolution music with Onkyo's DP-X1 digital audio player, a Hi-Res Audio receiver or on your devices with the Onkyo HF Player app.
Onkyo Hi-Res Audio reproduction
Play back high resolution music with Onkyo Hi-Res Audio speakers and headphones.
Onkyo Hi-Res Audio headphones and speakers
Designed with attention to detail, the highest quality components and an emphasis on professional acoustic tuning, Onkyo Hi-Res Audio headphones and speakers deliver clean, clear and nuanced sound in a range of product styles.
Onkyo Hi-Res Audio headphones
Onkyo offers a full range of Hi-Res Audio headphones with a clean, clear and precise sound signature. Wearing styles include in-ear, on-ear and over-ear headphones for outdoor and indoor use.Onkyo Headphones
Onkyo Hi-Res Audio speakers
Using Optimal Balance digital signal processing Onkyo’s Hi-Res Audio speakers optimize sound balance and minimize distortion at all volumes.Onkyo Speakers
The high resolution signal path
Onkyo Hi-Res Audio products deliver improved playback from any source. The following examples demonstrate ways to appreciate full high resolution detail for a range of situations.
Via smartphone or tablet
For compatible smartphones, use a high resolution player app such as the Onkyo HF Player. For other smartphones you will need a portable headphone amplifier with built-in digital to analogue converter (DAC) to experience full high resolution detail.
1. High resolution music files2. Hi-Res Audio compatible smartphone3. High resolution music player app4. Hi-Res Audio headphonesDownload high resolution music and plug in Hi-Res Audio headphones for playback. Check your device specifications for high resolution audio compatability.
DAC + amp
1. High resolution music files2. Other smartphone3. High resolution music player app4. Headphone DAC and amplifier5. Hi-Res Audio headphonesFor some smartphones including Android 5.0 and iPhone 5 onwards, a headphone amplifier with DAC will be needed with Hi-Res Audio headphones for playback.
Via Hi-Res Audio DAP (digital audio player)
A portable device devoted to high resolution, Onkyo DP-X1, offers direct streaming, storage and playback to Hi-Res Audio headphones or speakers.
1. High resolution music files2. Onkyo DP-X1 Hi-Res Audio digital audio player3. Hi-Res Audio headphonesPlug Hi-Res Audio headphones into the Onkyo DP-X1 and stream or download music to this all-in-one device.
1. High resolution music files2. Onkyo DP-X1 Hi-Res Audio digital audio player3. Hi-Res Audio speakerConnect Hi-Res Audio speaker via cable provided to the Onkyo DP-X1 and stream or download music to this all-in-one device.
For compatible computers, high resolution audio can be played back via headphones directly. For other computers you will need an amplifier and DAC for high resolution playback. Onkyo Hi-Res Audio speakers connect directly to all computers via USB for high resolution playback.
1. High resolution music files2. High resolution audio compatible computer3. High resolution music player software4. Hi-Res Audio headphonesConnect Hi-Res Audio headphones to computer via cable. Stream or download high resolution files for playback. Check your computer specifications for high resolution audio compatability.
DAC + amp
1. High resolution music files2. Other computer3. High resolution music player software4. Headphone DAC and amplifier5. Hi-Res Audio headphonesConnect Hi-Res Audio headphones via DAC and amplifier to your computer. Stream or download high resolution files for playback. Check your computer specifications for high resolution audio compatability.
1. High resolution music files 2. Any computer 3. High resolution music player software4. Hi-Res Audio speaker Connect Hi-Res Audio speaker to your computer via USB provided. Stream or download high resolution files for playback.
Via Hi-Res Audio AV Receiver or amplifier
Experience high resolution audio at home via HiFi speakers or Hi-Res Audio headphones.
1. High resolution inputs, for example NAS, DAC, SACD and network player2. Hi-Res Audio AV Receiver or amplifier3. Hi-Res Audio Home Hi-Fi speakersConnect a compatible AV receiver or amplifier to cabled Hi-Res Audio home hifi speakers to reproduce high resolution audio at home.
1. High resolution inputs, for example NAS, DAC, SACD and network player2. Hi-Res Audio AV Receiver or amplifier3. Hi-Res Audio headphones Hi-Res Audio headphones into a compatible AV receiver or amplifier to reproduce high resolution audio at home.
Via Google Cast for Audio
Experience the full detail of high resolution using Google Cast for Audio.
1. High resolution music files 2. Google Cast for Audio3. Hi-Res Audio speaker Connect Hi-Res Audio speaker to Google Cast for Audio via cable and stream high resolution music to Google Cast for Audio.
- High frequency performance of the recording microphone: must be able to record 40kHz or above
- High frequency playback performance of the amplifier: must be able to playback 40kHz or above
- High frequency playback performance of speaker and headphones: must be able to playback 40kHz or above
- Recording Format: must be able to record 96kHz / 24 bit in FLAC or WAV files
- Input-output I/F: must be able to support 96kHz / 24 bit
- File playback: must be able to playback 96kHz / 24 bit in FLAC / WAV file (In the self-recording & playing machine, must be able to record & play either FLAC or WAV or both)
- Signal processing: must be able to perform 96kHz / 24 bit signal processing
- Digital to analogue conversion: must be able to perform 96kHz / 24 bit conversion
3bit = 8 volume steps ≈ 18dB
4bit = 16 steps ≈ 24dB
16bit = 65,536 volume steps ≈ 96dB
24bit = 16,777,216 volume steps ≈ 144dB
16bit ≈ 96dB
24bit ≈ 144dB
32bit ≈ 193dB
Free Lossless Audio Codec, reduces file size for easy storage and transfer, without affecting audio quality
An uncompressed LPCM audio format typically used on the Windows operating system
An uncompressed LPCM audio file format typically used on Macintosh computers
Apple Lossless Audio Codec, reduces file size for easy storage and transfer, without affecting audio quality
Direct Stream Digital, a professional audio format also used to create Super Audio CDs
A Direct Stream Digital variant, that can also store track information along with the music