Analyzer

Analyzer

Der Analyzer kombiniert ein Schallpegelmessgerät mit einem Multibandfrequenzanalysator. Er ist ideal für das akustische Messen und die Analyse verschiedenster akustischer Umgebungen. Die innovative Benutzeroberfläche und ein Funktionsumfang, den selbst professionelle Akustikmessgeräte selten bieten, ermöglichen es jedem, ausgezeichnete Akustikmessungen durchzuführen.

Der Analyzer ist perfekt, um PA’s einzumessen, Lautsprecher und ihre Anordnung im Raum zu optimieren, Tonstudios einschätzen zu können, Musikinstrumente zu stimmen und zu analysieren… oder den Lärmpegel einer Party zu messen!

Seit Version 2.4 unterstützt der Analyzer Inter-App Audio, Audiobus 2.x (inklusive Audiobus state saving) und native 64 Bit Verarbeitung.  Version 2.5 bietet iOS 8 support.

Um die Messgenauigkeit zu verbessern arbeitet der Analyzer mit externen Mikrofonen wie dem MicW i436 zusammen und bietet Frequenzkorrekturen für einige dieser Mikrofone als In-App Einkäufe an. Aber auch in Verbindung mit externer USB Audio-Hardware wie dem RME Fireface UCX, Apogee’s OneDuet and Quartet, oder dem Alesis IO Dock ist der Analyzer ein mächtiges Werkzeug: durch Umschalten des Messbereichs von dB (SPL) auf dB (FS) wird aus der App ein hochwertiger Analyzer für professionelle Tonstudioanwendungen!

Funktionen des Analyzers:

  • Audiobus, Inter-App Audio and Airplay Unterstützung
  • Fadenkreuz mit Lupenfunktion in der Frequenzansicht
  • Umschaltung zwischen Balken- und Liniendarstellung
  • Zoomfunktionen wie in Karten-Apps in der Frequenzansicht
  • einstellbare Farben von Graphen und Workspaces
  • Speichern und Laden von Graphen und Workspaces in iCloud oder lokal
  • Exportieren in .csv oder .png Dateien und teilen via Mail, Dropbox u.v.m.
  • bis zu 14 Snapshots möglich (geräteabhängig)
  • Bandbreite individuell einstellbar (1 Oktave bis ca. 1/1200 Oktave je nach Gerät)
  • 6 verschiedene Fensterfunktionen
  • FFT Blockgröße einstellbar von 1024 bis 65536 Samples
  • integrierte Hilfe ohne Internetverbindung nutzbar
  • Signalgenerator: Sinus, weißes und rosa Rauschen
  • integrierte Frequenzgangkompensation für das eingebaute Mikrofon
  • umschaltbare Pegelskala: dB (SPL) und dB (FS) (nur bei USB oder Headset in)
  • umschaltbare Frequenzdarstellung: normiert oder absolut
  • Darstellung von Isophonen nach ISO 226:2003
  • Spitzenwerterkennung
  • integrierte manuelle und automatische Kalibrierung
  • Leq Messung
  • Schallpegelmessung mit 3 verschiedenen Zeitbewertungen (langsam, schnell, Impuls) und 4 verschiedenen Frequenzbewertungen (A, B, C, Z)
  • Als In-App Einkäufe erhältlich: Frequenzgangkompensationen für micW i436 (mit Einstellung für die individuelle Empfindlichkeit),i266, i456, i825, i855, iShotgun, Apple Earphones, Apple Earpods, Apple In-Ear Headphones, Microtech Gefell M372, Mic-W i436, Røde iXY, Røde smartLav, Tascam iM2, Tascam iM2X

 


Screenshot 2012.11.20 16.45.29

Screenshot 2012.11.20 16.49.59load data

iOS 6 frequency responses of the devices

Here are the frequency responses of the iDevices running iOS6 via line in of the headset input (iPod touch 5 coming soon):

iPhone 3GS

iPhone 4/4S

iPod Touch 4

iPad2, iPad3, iPhone5

iOS 6 and frequency responses of the iDevices

We made some measurements with the Analyzer 2 (beta version). As Apple disabled the built-in (software based) low cut in iOS 6 we are now able to get the responses of the iDevices directly (using the headset input). The results are great news: On iPad2 & iPad3 and iPhone5 the response is virtually flat from 20Hz – 20kHz! On iPhones 3GS, 4 and 4S there is still an attenuation of the lower frequencies which we will compensate for in Analyzer 2.0.

We made the measurements on different devices and shared them through the Analyzer’s new features: iCloud, png export, email and dropbox – that was fun! 🙂

Here are the graphs:

Analyzer 2.0 is in the pipeline!

We are working on a completely new version of the Analyzer (v2.0). It will take advantage of the new possibility to turn off the built-in lowcut (iOS 6 only). We also included real pinch zoom, snapshots, data storage and export, iCloud support, a much better graphic engine and many more exciting features! This major update will be available in a few weeks, hopefully still in october – we’ll keep you informed!

known issue: Spectrograph v1.0 crashes on some devices running iOS 4.3 or earlier

We have been working on this and the bug is fixed. An update has already been submitted to Apple and we are waiting for the review. The update comes along with some minor improvements and will probably be ready for download in the App Store in the beginning of next week.

frequency response compensation

All iDevices running iOS 5 have a built-in low cut filter for the built-in microphones and the headphone jack input.

schematic frequency response of iDevices running iOS 5.x

This issue has been solved by Apple since iOS 6.

The reason for the low cut of the pre-iOS 6 devices is – as we believe – that they are designed mainly for recording and processing human speech. This high-pass represents a serious drawback for all kinds of frequency related measurements based on the use of the built-in microphone or the headphone jack. We gave this problem a lot of thoughts and decided to develop a compensation.

Please note: the compensation curves (offered as In-App purchases in the Analyzer and the Spectrograph) compensate for the corresponding device, microphone and (in the case of running iOS 5.x) the heavy low cut filter. In the latter case we are aware that the compensation pushes the noise in the low frequencies, but after much testing done by experienced sound engineers we are very happy with the results! Compensation curves are available for the built-in microphones (on Analyzer included), selected headsets and the i-series mics i436i456 and i266 from MicW. We offer the frequency responses as In-App Purchases. You can get them by visiting the store in the menu.

The compensation for the measurement microphone i436 from Mic-W includes a setting for the individual sensitivity given in the manual of each i436. In Germany, Switzerland and Austria all products from Mic-W are distributed by Synthax GmbH

If you are running our Apps on iOS 6 or later, the compensation curves linearize the frequency response of the corresponding microphones and devices.

Frequency responses of the iDevices running iOS 6 (measurement mode activated):

iPhone 5, iPad 2-4 headset-in frequency response

iPhone 4S, 5, iPad 2-4 headset-in frequency response

iPhone4DeviceFrequencyResponse

iPhone 4 frequency response

iPhone3GSDeviceFrequencyResponse

iPhone 3GS frequency response

iPod Touch 4 frequency response

iPod Touch 4 frequency response

Here are the frequency responses of some external mics available for iDevices attached to the headset input:

Mic-W i436 frequency response

Mic-W i266 frequency response

Mic-W i456 frequency response

 

The MicW i436 manual provides an individual sensitivity value. We integrated this as a setting in the i436 info page:

i436 help page

some pictures

our crew making measurements…

 

dB Volume update

Hi everybody, there’s a new update available: we improved the facebook performance and enlarged the facebook button – get it now!

dB Volume+ available on the App Store!!

One step further: our next app has made it! With dB Volume+ you can post everything on facebook: noise level, geodata, picture, comments… You could use it for analyzing noise levels in National Parks, around airports or for documenting your nights in the clubs – but let’s see what you’ll make out of it…

dB Volume is now available on the App Store!

Our next App made it through! We are proud to present our free of charge App dB Volume. You can measure the sound pressure level (SPL) and share it directly on facebook – we are really curious, how you will like and use this feature!