Finally! iOS 6 kills the filter on headset and mic inputs!
So, iOS 6 has finally arrived and the biggest news for SoundMeter, SignalScope, and SignalScope Pro users may just be that the high-pass filter which used to plague the built-in microphone and headset microphone inputs now gets bypassed. This exciting improvement to iOS 6 will significantly improve the quality of acoustical measurements that can be made with the iPhone, iPad, or iPod touch, without requiring a dock connector accessory for audio input.
Below are 1/3-octave headset input frequency response comparisons for the various iOS devices that support iOS 6. More details regarding the headset input and built-in microphone will be presented in the days ahead.
Update (9/19/20120, 7:32 PM): It should be noted that these are electrical frequency response measurements. When making acoustical measurements, the overall frequency response will depend also on the microphone that is used.
iPhone 4S Before iOS 6/Now
iPhone 4 Before iOS 6/Now
iPhone 3GS Before iOS 6/Now
iPod touch 4 Before iOS 6/Now
iPad 3 Before iOS 6/Now
iPad 2 Before iOS 6/Now
iOS 6 is now highly recommended for all SoundMeter, SignalScope, and SignalScope Pro users.
Hooray! I am just getting ready to install a new cinema sound processor and will need to calibrate it and EQ the auditorium.
I just got iOS 6 pushed onto my iPhone 4. Do I need to download a new version of Soundmeter to take advantage of the better frequency response of the internal mike? I have Soundmeter ver. 3.1.5
Ever since it was updated for iOS 5, SoundMeter has used the measurement mode in iOS. It’s this measurement mode that disables the high-pass filter. SoundMeter 3.1.5 is good to go.
Hi,
I’m desperatly trying to get the correct frequency output from my iPhone microphone…
Is there a special function in the AudioUnit framework, which is used to turn the filter off?
Best regards
Martin
ios6 brought many new things for audio developments…
By the way, is it possible to select which mic to use having a headset plugged? I need to switch between internal and external mic…
Regards!
Hi. Do you think soundmeter with a proper mic could gain type approval, perhaps type 2? That would be very useful as the UI makes it preferable to cryptic handheld meters.
Also, would it be possible to save csv data to allow for statistical analysis, eg La90 background noise levels?
Thanks!
Do you know if there are any audio recording apps that make use of this measurement mode feature to disable the high-pass filter? This seems to be happening to me when I record audio using GarageBand, SoundCloud, etc.