How to generate frequency response of mobile devices

[zuowanbushiwo]

Dear Sir this is a really cool project，I am an AI software engineer. My recent work requires knowledge of acoustics and structure, but I have never been exposed to it before. I need to generate a lot of mobile device impulse responses to generate data and then train the AI model. As described in the second section of the Appendix. I wonder if your program can generate some frequency curves for devices like Huawei Mate, iPhone , Samsung and smartspeaker and laptop?

Device playback augmentation with echo cancellation for keyword spotting.pdf

Thanks!

[be1]

Dear Sir, No, QSpeakers cannot do this. QSpeakers only predict bass frequency response of enclosures with large speakers.

But you can measure your mobile devices response curve by playing a swipe sinewave throught them from 20Hz to 20000Hz and capture the device response with a flat response microphone. Using swipe sinewave is equivalent to using impulsion. Check the QLoud project for this, maybe this an help.

[zuowanbushiwo]

Dear @be1

Thank you very much for your reply, it is very helpful to me. I am not familiar with the field of acoustics and structures, and I would like to ask you one more question: Do I need to measure in an anechoic chamber? From my limited knowledge, if I do not measure in an anechoic chamber, there will be interference from the impulse response of the house. But if I use an anechoic chamber, it will be too difficult to do. And what is a flat response microphone? Is it a calibration microphone? Can I buy it?

thanks！

[be1]

Yes, ideally, in an anechoic chamber. Do not use a calibration microphone, use a measurement microphone.

• The cheapest one (I have this model)
• The best seller
• Among others

[zuowanbushiwo]

Hi @be1 Thank you very much for your kindness. May I ask you another question: Do you know of any open source loudspeaker IR datasets (especially for portable devices like mobile phones and laptops)? I have only found IR datasets for microphones .

[be1]

Sorry, I don't know. There are room impulse responses over the web, but I don't know about mobile devices loudspeakers (output), or microphones (input) IR.

[zuowanbushiwo]

thanks best