AES E-Library

Test Procedure and Digital Test Generator for Digital Audio Systems

Digital audio recording and mixing systems require high performance or special testing equipment, e.g. for amplitude and phase distortion as well as group delay measurements. The methods to be employed sometimes differ substantially from the test systems used in analog systems. But using a combined test method including digital and analog signal path in a digital audio system, a very simple test method can be evaluated. Complete PCM-Audio systems can be tested in the following system configuration (starting with a digital input signal): D/A Converter - Sample & Hold (Deglitcher) - Low Pass Filter (Analog Output = Analog Input) - Antialiasing Filter (LPF) - Sample & Hold - A/D Converter - Digital Output. This requires a digital signal generator with an accuracy of 1/2 LSB over full scale, with various signal and sampling frequencies.

Authors: Pichler, H.; Pavuza, F.
Affiliation: Technische Universitat Wien, Institut fur Allgemeine Elektrotechnik und Elektronik
AES Convention:71 (March 1982) Paper Number:1874 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes10)   /pp8185/pp8203/1962.pdf

Start a discussion about this paper!