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4pAAa12 – Hearing voices in the high frequencies: What ...
https://acoustics.org/hearing-voices-in-the-high-frequencies-what-your-cell-phone-isnt-telling-you-brian-b-monson/#:~:text=Specifically%2C%20cell%20phones%20don%E2%80%99t%20transmit%20very%20low-frequency%20sounds,form%20of%20vocal%20overtones%20and%20noise%20from%20consonants.
Maximum Level and Frequency Response - Smartphone …
https://www.anandtech.com/show/7567/smartphone-audio-quality-testing/3
Frequency Response. To measure the frequency response we measure a set of 61 tones from 20 Hz to 20 kHz. All of these are then equalized to 1 kHz so we can see the maximum deviation from that level.
Audio frequency analysis in mobile phones
https://iopscience.iop.org/article/10.1088/0031-9120/51/1/015003/pdf
Frequency response measurement There are two ways to evaluate the cell phone fre-quency response which correspond with two dif-ficulty levels: 1.Using a first mobile phone, a call is made to a second mobile phone and a voice test is performed. Then, the audio plug connector is attached into the audio port of the first phone.
Audio Frequency Analyzer on the App Store
https://apps.apple.com/us/app/audio-frequency-analyzer/id684641742
iPhone Screenshots. "Audio Frequency Analyzer" is a powerful real-time audio analyzer (RTA) app for iPhone. This app can measure the frequency response in 30 split band scale of 1/3 octave in real time. Also it can be displayed the FFT analysis result. "Audio Frequency Analyzer" is available in a variety of applications, such as sound room tuning, speaker settings, audio equipment …
measuring the Frequency Response of a cellphone …
https://www.electro-tech-online.com/threads/measuring-the-frequency-response-of-a-cellphone-speaker.102535/
The enclosure for a speaker must be designed for the detailed spec's of the speaker for a good flat low frequency response. You can hear down to 20Hz and feel down to 5Hz but I don't think a little shrieker (not a speaker) from a cell phone can do it. A speaker's frequency response must be measured in an anechoic space like outdoors.
4pAAa12 – Hearing voices in the high frequencies: What ...
https://acoustics.org/hearing-voices-in-the-high-frequencies-what-your-cell-phone-isnt-telling-you-brian-b-monson/
You might already know that the reason is because a cell phone doesn’t transmit all of the sounds that the human voice creates. Specifically, cell phones don’t transmit very low-frequency sounds (below about 300 Hz) or high-frequency sounds (above about 3,400 Hz). The voice can and typically does make sounds at very high frequencies in the “treble” audio range (from about …
What is frequency response and how does it affect my …
https://soundguys.com/frequency-response-explained-16507/
In the real world, you’ll often see frequency response specifications quote a range of frequencies, such as 20Hz-20 kHz, followed by the amount of variation in the frequency response quoted in decibels, such as +/- 6 dB.
Measure the frequency response of phone speaker ...
https://forum.videohelp.com/threads/315434-Measure-the-frequency-response-of-phone-speaker
Frequency response: 20-16000 Hz. Microphone sensitivity: -58 +/- 2dB. S/N ratio: 60 dB or more. I placed a mic near ~5-6cm from speaker, then played Pink Noise mp3 through the phone speaker, recorded it, then analyzed in Plot Spectrum.
Cell phone speaker frequency range? - Sound, Stage, and ...
https://www.harmonycentral.com/forums/topic/100243-cell-phone-speaker-frequency-range/
I would say 500hz to 5000hz. To elaborate, I recently did a project that involved recording voice messages from a cell phone speaker into my DAW. When looking at the Spectrum Analyzer, I found that there were virtually no frequencies below 500 or above 5000.
audio - Analog Telephone Frequency Response Curve ...
https://electronics.stackexchange.com/questions/35976/analog-telephone-frequency-response-curve
Old analog telephone circuits using carbon microphones seem to be said to have a frequency response of, from various low frequencies which differing reports put at between 275 Hz and 400 Hz, up to various high frequencies, reportedly between 3 and 3.4 kHz, with possibly a peak a around 1 kHz, depending on the manufacturing decade of the carbon mic, and otherwise not …
Frequency response of UK mobiles - Cell Phone Forums
https://cellphoneforums.net/uk-telecom-mobile/t240689-frequency-response-uk-mobiles.html
the ADC in the phone. A low-pass corner frequency of around 3.7 or 3.8kHz is common. The GSM standard-rate codecs have a bug in the specification such that the high-pass filter does not significantly block dc. This means that the actual response will depend on how the manufacturer has chosen to implement their design.
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