Signalscope by faber acoustical7/19/2023 Retrieve your data files via iTunes File Sharing, or from your device through a web browser on your Mac or PC. Save acquired time or frequency data to CSV, TXT or MAT-files. Assign engineering units to your input signals and calibrate external transducers for accurate measurements (this allows IOScope to measure impedance in ohms, or device sensitivities such as SPL/V or V/Pa). Audio input is generally sampled at 48 kHz, although some input devices limit that to 44.1 kHz. to compensate for acoustic delay in a sound reinforcement system). Apply sample-accurate delay to the reference (X) signal for the highest quality measurements using an external reference (e.g. Use cursor peak track to easily measure time delay. Measurement (Y) signals include: Built-in Microphone, Headset Input, Ch1, Ch2 (depending on which audio input device is currently selected by the OS). Reference (X) signals include: Internal Excitation Signal, Built-in Microphone, Headset Input, Ch1, Ch2, Ch2-Ch1 (depending on which audio input device is currently selected by the OS). Employ an external or internal reference (X) signal. Measurement durations from 0.1 to 5 seconds. Frequency resolutions from 0.2 Hz to 10 Hz. Measure impulse response (IR), squared IR, and cross-correlation. Measure frequency response magnitude and phase, coherence, and group delay. Measure device (DUT) characteristics by analyzing its input (X) and output (Y) signals. Analyze signals coming from the iOS device’s current audio input path. Visit for important information about iOS device I/O. It is possible to use IOScope with the built-in microphone, but this is not generally recommended. IMPORTANT NOTE: For best results, using a dock connector input device is recommended for the highest quality measurements. “Touch” your data with interactive, multi-touch enabled analyzer displays. Sensitivity calibration can also be performed for any audio input device or input channel. IOScope also turns your iOS device into a platform for data acquisition, storing acquired data in CSV or TXT files, MAT-files, or images for later retrieval from your device.ĭifferent engineering units, including Volts, Amps, pascals, g's, and ips (inches per second) can be assigned to input channels of the dock connector audio input or the headset input. The reference signal can be taken from the internal signal generator or from an external source (when using an external reference, a stereo or multi-channel audio input device, connected to the dock connector, is required). IOScope includes a built-in signal generator for producing suitable excitation signals to analyze your system or device under test (DUT). Time domain functions enable you to measure impulse response and auto/cross-correlation. Determine the actual cutoff frequencies of your latest speaker crossover circuit, or teach your students the fundamentals of Fourier analysis of dynamic systems. Tune a large sound reinforcement system, time-align a set of surround sound speakers, or optimize your home stereo. With IOScope, measure loudspeaker impedance, frequency response, and sensitivity. IOScope brings two-channel transfer function and impulse response analysis to iOS! See for video demos. You can download it for free and try out the Pro features for free for up to 7 days. SignalScope X offers powerful new tools and features. You will be able to continue to use IOScope as long as you run it on a device with a compatible version of iOS. Note: IOScope has been replaced by the new SignalScope X and will no longer be updated.
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