The National Instruments PCI-4462 high-accuracy data acquisition board is specifically designed for sound and vibration applications. With 24-bit sigma-delta analog-to-digital converters (ADCs), it is ideal for applications including noise emission test and acoustic holography. The NI PCI-4462 features 118 dB dynamic range and six gain settings for precision measurements with microphones, accelerometers, and other transducers that have very high dynamic ranges. Some common applications featuring the PCI-4462 include noise, vibration, and harshness (NVH) test; vibration analysis; and machine condition monitoring.
Best Value - Buy Both and Save The NI PCI-4462 is also available as a bundle with the NI Sound and Vibration Measurement Suite, which includes NI Sound and Vibration Assistant, at a discount from the list price. See the Resources tab for more information on the list of analysis capabilities in the Sound and Vibration Measurement Suite.
Multidevice Synchronization for High-Channel-Count Systems You can synchronize the PCI-4462 with additional PCI-4462 boards to build systems with eight, 12, or more simultaneous inputs. In addition, you can synchronize other dynamic signal acquisition (DSA) boards, such as the NI PCI-4461, with two inputs and two outputs using the PCI-4462 to create systems with 10 simultaneous inputs and two simultaneous outputs (requires one PCI-4461 board and two PCI-4462 boards).
Recommended Software NI sound and vibration analysis software, including the NI Sound and Vibration Measurement Suite and the NI Sound and Vibration Toolkit, provides signal processing functionality for performing audio measurements, fractional-octave analysis, frequency analysis, transient analysis, and order tracking. NI analysis software features NI Sound and Vibration Assistant interactive software for quickly acquiring, analyzing, and logging acoustic, noise, and vibration data. With a configuration-based, flexible measurement library and open-analysis capability, Sound and Vibration Assistant is designed for quick data capture through a unique software-based measurement approach to create customized applications.
National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:
Significant cost savings compared to individual repair incidents
Fault location, diagnostics, and repair by NI any time the system product fails
All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications
NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.
Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.
Consumer demand for next-generation multimedia devices such as set-top boxes, Blu-ray players, HDTVs, gaming consoles, and mobile devices is challenging engineers to get these devices to market faster. National Instruments provides a wide range of measurement and automation tools built on flexible, industry-proven platforms that can help engineers meet this challenge from multimedia device design to production. Register for each event to learn how engineers are testing the latest audio standards
Multimedia Device Test Web Event Series March 23-25, 2010
Top Five Measurements for Audio Test Applications
Audio measurements can analyze a wide variety of abnormalities in a signal. The basis of audio analysis is choosing appropriate levels and performing frequency analysis on data acquired from a device. Step through the basics of audio signals and learn how to set up a system to take measurements such as total harmonic distortion (THD) and signal-to-noise ratio (SNR).
View the Webcast Tuesday, March 23, 1:00-2:00 p.m. CDT:
Cleaning Audio Signals: Filtering and Signal Processing
Engineers face two major challenges in audio test: audio signals are inherently noisy and the measurements are always performed in the frequency domain. Weighting filters and windowing functions are two of several techniques you can use to achieve a proper understanding of your audio signals. Learn different filtering techniques to obtain more reliable results while testing your audio device.
View the Webcast Wednesday, March 24, 1:00-2:00 p.m. CDT:
Sound quality analysis is based on the field of psychoacoustics. Sound quality algorithms define how humans perceive the sound they are analyzing. Learn how to determine if your sound is too sharp, loud, or rough.
View the Webcast Thursday, March 25, 1:00-2:00 p.m. CDT:
