Eminent Technology's Multimedia Speaker Test. This page was awarded a LookSmart Editor's Choice Symbol of Excellence. These test are provided to help you make sure that your multimedia speakers are set up and performing correctly.

AUDio MEasurement System is a free and open source audio analyzer software for Windows. It lets you analyze the performance of sound card of your PC. You need to specify input and output devices to analyze them prior to initiating analysis process. PassMark SoundCheck™ is a Windows based application that allows users to test their PC sound card, speakers and microphone. Verify that your sound card can record and playback sounds at various audio sample rates.

Sonic beacon has been designing premium quality data acquisition and loudspeaker analysis software for the Windows Operating System since 1997. Our latest free of charge download allows the PC or laptop user to perform loudspeaker test and measurement using a low cost audio power amplifier, a measurement microphone and pre-amp and a multimedia compatible sound card or USB/Fire-wire audio interface.

Typical Loudspeaker Frequency Response Test Setup

Sonic beacon will perform frequency and phase response, harmonic and inter-modulation distortion, polarity, impedance, Thiele-Small parameter extraction, sensitivity and SPL as well as other FFT and real time loudspeaker tests. In order to maximize signal to noise ratios this program tests loudspeaker frequency response using the application of maximum length sequences (MLS) with FHT/FFT to extract the impulse.

Dupur thakurpo full movie download. This software application contains a series of modules that may be cascaded in order to perform a specific analysis on an electrical signal. Data is passed and altered serially from module to module. A WAV/RIFF format input module, a signal generator, a sound I/O module, an oscilloscope, a spectrum analyser, a persistent data-logger and a WAV/RIFF format output module are included in this release. Sixteen bit sampling rates up to 192 kHz and FFT lengths up to 128K points are supported. Sonic beacon’s standard data format is compatible with a wide variety of loudspeaker design and test packages. File and clipboard copy transactions in .FRD and .ZMA formats are now available for data transfer to many low cost cabinet and crossover design programs. Audio interface and amplifier calibration for the measurement of voltages and SPL as well as the application of microphone response curves are also standard in this release.

Clio Speaker Testing Software

Sonic beacon has been used for loudspeaker and other audio equipment testing by acoustical technicians, sound engineers, scientists and students. It is ideal for prototyping of loudspeaker cabinets and crossovers. Best of all sonic beacon is absolutely free of charge.

Contact Information

We always appreciate your comments or any novel uses you may have for our application.

Speaker Testing Software

You may contact us at

Postal Address : 155 Indian Hill Rd Pakenham, Ontario Canada K0A 2X0

Speaker Polarity is an iPhone app that tests a speaker for correct polarity (sometimes called 'phase').

See our new demo video of this module. This video was recorded in the simulator, and shows the module running within AudioTools.

To use Speaker Polarity, you need to send our proprietary test signal to your speaker. Then, holding the iPhone near the speaker, the polarity is read using the internal microphone (located on the bottom of the phone). Speaker Pop generates the signal, and as long as you use a stereo tip-ring-sleeve 1/8' audio cable, and not a cable with a 3-ring connector, the iPhone internal microphone will still function.

Also, you can burn the test signal to a CD. The test signal can be generated when running Speaker Polarity just turn on the Output Signal switch, plug an 1/8' stereo cable into the headphone jack, and plug the other end into a Mac running Garage Band, capture the signal, and burn a CD. Or, just go to our downloads page to get the test signal, as a WAV file, and burn that to a CD.

Then, play the test signal through the speaker and read the result. Check the signal strength meter to make sure that you are within the working range -- anywhere above 'low' and below 'high' should work fine.

Speaker Polarity Main Screen

Here is the main Speaker Polarity screen:

The algorithm used for testing speaker polarity is quite advanced, and is designed to prevent false triggers and bad readings. It will work with any type of speaker, small or large, and will work quite well at a distance, as long as the test signal is strong enough.

Note: Early versions of this app required us to use filters to select the speaker driver type. This was causing false readings due to phase shifting in the time domain. The algorithm now automatically determines the driver type and finds the polarity for any driver. Note that you may need louder signals to test subwoofers.

Signal Files to Download

Download signal files from our Downloads page.

Speaker Testing Software For Beginners

Burn the WAV file to a CD, or you can use the AC3 format file as the soundtrack on a DVD to make a home theater test DVD. Note that iDVD does not support AC3 files, so you would have to use a program like DVD Studio Pro to burn the DVD. We have heard that some versions of toast will burn this signal to a DVD.

We will be making home theater test DVDs available soon. When you play the DVD, the Speaker Pop Signal is sent to all 5 speakers and the subwoofer. Just bring the iPhone near the speaker you want to test (6' to 2' will usually work well) and read the results.

Airport Express and Apple TV

Speaker Testing Software Reviews

Speaker Testing Software Review

You send the stereo file to either the AE or ATV directly. Just import the stereo signal file into iTunes and play it. But, note that every Airport Express that we have tested or have feedback from inverts the signal! So, you have two choices: if you want the polarity to be correct for other inputs, such as a CD player, adjust all the speakers to read '-', or reverse the wiring on all of your speakers, if you normally only use the AE.