Reference materials

The largest forum for DIY loudspeaker and amplifier design. Active communities covering enclosure design, crossover development, driver measurement, and electronics.

Measurement-focused review and discussion forum. Publishes standardised measurements of loudspeakers and electronics using calibrated equipment.

Professional audio community covering recording, mixing, and studio acoustics. Useful for applied acoustic treatment discussion and studio design.

Archive of papers published at AES conventions and in the JAES. A large proportion are available as free PDFs. An essential resource for loudspeaker and audio engineering research.

Peer-reviewed journal covering loudspeaker design, room acoustics, psychoacoustics, digital audio, and signal processing. AES membership includes access.

The leading peer-reviewed journal for fundamental and applied acoustics research, covering room acoustics, transducers, noise, and hearing.

Concise physics reference from Georgia State University. Covers wave behaviour, room acoustics, the decibel, human hearing, and loudspeaker fundamentals with equations and diagrams.

Practical engineering reference covering acoustic material properties, sound absorption coefficients, unit conversions, and physical constants.

Free room and loudspeaker measurement software. Covers impulse response, frequency response, RT60, waterfall plots, and impedance measurement. The standard tool for room acoustic work.

Impulse response measurement and analysis software for loudspeaker and room acoustics. Includes frequency response, impedance, cumulative spectral decay, and directivity measurement.

Browser-based tool for extracting Thiele-Small parameters from impedance measurements. Fits a lumped parameter model to measured data.

Free loudspeaker system design software for Windows. Covers crossover design, baffle diffraction simulation, driver frequency response import, and polar response.

Free enclosure design software for Windows. Models closed, ported, bandpass, and passive radiator alignments from Thiele-Small parameters.

Professional society for audio engineering. Publishes standards for loudspeaker measurement, digital audio, and interconnects. Hosts the JAES and the AES E-Library.

Scientific society covering all branches of acoustics. Publishes JASA and maintains standards for acoustic measurement and terminology.

International body for electrotechnical standards, including IEC 60268 (sound system equipment) and IEC 61260 (octave-band filters).

Publishes acoustic standards including ISO 226 (equal loudness contours), ISO 354 (sound absorption measurement), and ISO 3382 (room acoustics measurement).