InfoCreate Co.,Ltd

Acoustic test support services overview

Acoustic noise experts with the latest test facilities support your acoustic tests for product development.

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-Test services-

1. ISO 7779  (JIS X 7779), ECMA-74 compliance tests:

1.1 Determine the sound power level by the reverberation room method

1.2 Determine the sound power level by the Hemi-anechoic room method

- Rectangular box measurement surface method: 9 position measurement
- Hemispherical measurement surface method: 10 position measurement

1.3 Determine the emission sound pressure level at operator and bystander positions

- A-weighted emission sound pressure level,L_pA
- A-weighted impulse emission sound pressure level,L_pAI
- C-weighted peak emission sound pressure level,L_pC,peak
- 1/3 octave-band analysis
- FFT analysis (6400 lines)

2. Prominent discrete tone analysis in compliance with ANSI S1.13, ISO 7779, and ECMA-74

- tone-to-noise ratio, ΔL_T
- prominence ratio, ΔL_P

3. Loudness analysis: ISO 532B for steady noise, B&K 7698 program

4. Sharpness analysis: ISO 532B for steady noise, B&K 7698 program

Notices

- We have a Japanese translation of ECMA-74:2003 8^th, Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment. Along with this text, the proceeding of technical seminars on measuring the noise emitted by IT equipment are available.
ECMA-74 is the de facto pilot project of ISO 7779, and specifies detailed method for 19 different categories of IT equipment.

Charges

The figures quoted include consumption tax.

The shifts are as follows:
  Shift 1, 01:00 to 9:00
  Shift 2, 09:00 to 17:00
  Shift 3, 17:00 to 1:00

-Test services-
	ISO 7779 (JIS X 7779), ECMA-74 compliance
	A1.	HAC (Hemi-Anechoic Chamber) with an operator	¥271,005
	A2.	RC (Reverberation Chamber) with an operator	¥261,030
		Simultaneous use of HAC and RC, with an operator	¥449,085

To the regular charge shown above,

• Late-night rate time zone/shift 1: Regular fee plus 20%
• Night time rate time zone/shift 3: Regular fee plus 15%
• Holiday rate, for each shift: Regular fee plus 50%
• Urgent cases rate. This rate is charged when the Client's application is received  5 or fewer business days before the scheduled testing day and negotiation is completed between the client and IFC: 10% is added to the regular charge. These rates are applied not only to the regular rates but also to late-night, night time, holiday rates.
• Cancellation fees:
  • Three business days before the scheduled testing day:  30% of the rate quoted above
  • Two business days before the scheduled testing day: 50% of the rate quoted above
  • One business day before the scheduled testing day, or on the scheduled testing day: 100% of the rate quoted above 
• last date to make schedule changes without incurring a penalty is three business days before your scheduled testing day. If a test is rescheduled once, and the new date is confirmed, the test cannot be rescheduled again. Making any changes two business days before your scheduled testing day is considered a cancellation and is penalized accordingly.