The new SignalSuite TV is now available for download on the Apple TV App Store.
Use SignalSuite TV’s stereo test signal generator to help set up, test and optimize your A/V audio system. SignalSuite TV generates white noise, pink noise and pure tones in addition to square, triangle, and sawtooth waveforms. Signals can be panned between two (left and right) audio channels. Any channel in up to 8-channel surround sound audio systems can be assigned to either the left or right output.
Use white or pink noise to measure the frequency response of your system using spectral analysis apps, such as SignalScope Pro for iOS or Mac.
Test speaker connections in a 7.1 surround sound system by quickly switching between all 8 output channels.
Search for system resonances by manually sweeping the pure tone frequency by sliding your finger left or right on the touch surface of Apple TV’s Siri Remote. Amplitude and pan settings can also be manually swept using touch gestures when the corresponding text field is focused by the remote. Clicking on the focused text field will bring up the keyboard screen so you can enter an arbitrary value in the text field.
Note: Working with multi-channel A/V systems requires that Apple TV’s audio Surround Sound setting be set to “Auto” and that the A/V receiver be properly configured for a multi-channel source.
SignalSuite TV is available on the Apple TV today. Search for SignalSuite in the App Store.
The FFT-based spectrum analyzer in SignalScope Pro 6.2 allows arbitrary upper and lower frequency bounds (Fmax and Fmin) to be specified for the spectrum display. The cursor peak track function will operate only within the specified frequency bounds. The hardware sample rate may optionally be automatically adjusted to best match the specified value for Fmax.
A typical minimum sample rate of iOS hardware is 8 kHz. If a frequency resolution of 1 Hz is used for the spectrum, and values of 10 and 400 are specified for Fmin and Fmax, respectively, the data between 10 and 400 Hz will be plotted and the plot will be scaled to extend only from 10 and 400 Hz. If the cursor peak track function is enabled, the cursor will find the frequency of the highest magnitude between 10 and 400 Hz.
If the option to automatically adjust the sample rate based on Fmax has been selected, the hardware sample rate (Fs) will automatically be reduced to the minimum rate required to acquire data up to 400 Hz. In the case of typical iOS or USB audio input hardware, this rate would be 8 kHz. Since FFT data would then include values between 0 and 4 kHz, an additional option allows either all data (0 to 4 kHz) or only data from 10 to 400 Hz to be exported when saving FFT data to a CSV, TXT, or MAT file. Note that the DC term may be omitted from exported data when FFT data is displayed on a logarithmic frequency scale.
Also new in SignalScope Pro 6.2:
- When “cpm” is selected for units of frequency, exported data files will include frequencies specified in cpm.
- The nominal microphone sensitivity is properly set on the new iPhones.
- Other bug fixes/stability enhancements, including iOS 9 compatibility.
Similar improvements have been added to version 7.2 of SignalScope. Specifying values for Fmin and Fmax in SignalScope require the Data Acquisition Upgrade, which is available via in-app purchase.
Download SignalScope 7.2
Download SignalScope Pro 6.2
SoundMeter 8.2 and SoundMeter Pro 4.2 are now available for download on the App Store. Each new version includes proper handling of the built-in microphone on iPhone 6S and iPhone 6S Plus devices and minor changes in iOS 9.
Unfortunately, the new iPhones do not support analog input gain selection for the built-in microphones as previous iPhone models did. The fixed input gain of the iPhone 6S/Plus matches the “Mid” input gain setting in the iPhone 5C, 5S, and 6 models. This means that the peak sound level that can be measured using the built-in microphone of the new iPhones is nominally 116.5 dB. Previous iPhones, on their lowest input gain setting, could measure nominal peak levels of 136 dB.
The SoundMeter apps now allow mixing audio with other apps. This means that it is possible to play music from the Music app while performing measurements with SoundMeter or SoundMeter Pro. It is also possible to mix the output of the signal generator with the audio output from another app.
Also new in each app, when using an iPhone or iPad that has multiple built-in microphones, the unique name of the selected microphone is displayed (e.g. “Bottom Microphone” or “Right Microphone”).
Download SoundMeter Pro
SignalScope Pro 6.1 and SignalScope 7.1 have been released for sale on the App Store with some important enhancements, including the ability to mix audio output with other apps. Audio mixing means that it is possible to play music from the Music app while performing signal analysis with SignalScope or SignalScope Pro. It is also possible to mix the output of the signal generator* with the audio output from another app.
The SignalScope apps include other important enhancements:
- The FFT analyzer tool now supports frequency resolution as fine as 0.1 Hz for audio input signals.
- When working with an iPhone or iPad that has multiple built-in microphones, the unique name of the selected microphone is displayed (e.g. “Bottom Microphone” or “Right
- When analyzing two input channels in the Octave tool, both spectra are displayed in a single line plot.
Download SignalScope Pro
* The signal generator tool is available via in-app purchase in the standard version of SignalScope.
Although Faber Mac and iOS apps have offered excellent sound and vibration analysis tools from the start, the introduction of the Digiducer 333D01 USB Digital Accelerometer makes vibration measurement easier and more portable. When the 333D01 is connected to a Mac, iPhone, or iPad, it will be immediately recognized by our apps and ready for calibrated measurements.
For example, SignalScope Pro will recognize the connected 333D01 as an accelerometer and set the measurement units accordingly. SignalScope Pro will also automatically read calibration information from the 333D01 and establish the appropriate sensitivity so calibrated measurements can be made immediately. This works with both the Mac and iOS versions of SignalScope Pro.
The 333D01 communicates with Mac OS or iOS via the standard USB Audio Class driver. Connecting to a Mac is as simple as plugging the 333D01’s cable into an available USB port. For iOS, Apple’s Lightning to USB Camera Adapter is required.* When connecting to iOS, no additional power source is required, which makes Faber apps and the 333D01 part of an ultraportable vibration measurement system.
Auto-calibrated measurements with the 333D01 are supported in Electroacoustics Toolbox, SignalScope and SignalScope Pro for Mac, and in IOScope, SignalScope and SignalScope Pro for iOS.
Buy the 333D01 USB Digital Accelerometer
Download Electroacoustics Toolbox (Mac)
Download SignalScope Pro (Mac)
Download IOScope (iOS)
Download SignalScope Pro (iOS)
*Older iOS devices may require a 30-pin to USB adapter, such as the one available in Apple’s original iPad Camera Connection Kit.
Version 1.5 of SignalSuite, the original stereo audio signal generator for iPhone, finally supports larger iPhone screens, including those of the new iPhone 6S and 6S Plus, with a fresh new look. -> read more …
For some time, SoundMeter has offered an optional in-app upgrade that would allow users to log sound level and noise dose measurements for up to two weeks. Version 8.1 adds an upgrade to allow whole and 1/3 octave sound levels to be logged for similar durations. -> read more …
Version 3.8.2 of Electroacoustics Toolbox for Mac OS is now available for download from FaberAcoustical.com and on the Mac App Store. -> read more …
If you’re looking for a way to acquire stereo input signals in apps like SignalScope Pro or IOScope, you’ll be pleased to know that you can connect a USB audio device to your iPhone, iPad, or iPod touch. -> read more …
Faber Acoustical is pleased to announce that a live Spectrogram tool is now available for purchase within SignalScope and SignalScope Pro. The Spectrogram tool is offered in both 2D and 3D versions. -> read more …