Which test equipment is specifically used to analyze audio signal bandwidth?

The Real Time Analyzer (RTA) is specifically designed to analyze audio signal bandwidth. It can measure the frequency response of audio signals in real time, providing a visual representation of various frequencies present in the audio spectrum and their relative levels. This capability is crucial for assessing how well audio equipment, such as speakers and amplifiers, function across different frequency ranges.

An RTA typically provides a graphical display that can show the amplitude of various frequencies in the signal being analyzed, allowing technicians and audio engineers to identify problem areas in audio playback, such as peaks or dips in frequency response, which are essential for sound quality optimization.

In contrast, while a frequency generator produces specific frequencies, it does not analyze or report on bandwidth characteristics. An oscilloscope displays voltage changes over time and can visualize waveforms but does not inherently provide detailed frequency analysis associated with audio bandwidth. An audio tester can assess various performance metrics of audio devices but is not focused on real-time frequency analysis like an RTA. Thus, the RTA stands out as the ideal tool for this specific purpose.