Definition of Hi-Res AUDIO (Announced on June 12th 2014)
- In principle, the definition of "Hi-Res" is based on the announcement of Japan Electronics and Information Technology Industries Association (JEITA) on the March 26, 2014
- "Hi-Res" applicable products JAS defines is to fulfill the following specification on the recording, reproduction and signal transition process
- <Analogue process>
- (1) Microphone response performance: 40 kHz or above during recording
- (2) Amplification performance: 40 kHz or above
- (3) Speaker and headphone performance: 40 kHz or above
- <Digital process>
- (1) Recording format: Capability of recording using the 96kHz/24bit format or above
- (2) I/O (Interface): Input/output interface with the performance of 96kHz/24bit or above
- (3) Decoding: File playability of 96kHz/24bit or above (FLAC and WAV both required)
(In case of self-recording equipment, FLAC or WAV file is required as minimum condition)
- (4) Digital Signal Processing: DSP processing of 96kHz/24bit or above
- (5) D/A conversion: Digital to analog conversion processing of 96 kHz/24 bits or above
- Listening evaluation process is to be organized
- (1) Listening evaluation process is required by each applicant.
- (2) Each applicant must assign the audio/sound quality control manager in addition to the product quality control manager.
- (3) The audio/sound quality control manager should be responsible for final decision as Hi-Res Audio product to be proved according to each company's sound evaluation standard.