Audio SA
spectrum analyzer
무료Offers In-App Purchases
1.0.3for iPhone, iPad and more
Age Rating
Audio SA 스크린 샷
About Audio SA
"Audio SA" is a spectrum analyzer that can capture voiceprints as TFFT images.
The created TFFT image can be exported as a high resolution image. (Image size example iPhoneSE3: 4096×4096, iPhoneX: 6144×6144)
If you just want to try creating a voiceprint, you don't need to worry about the settings. Just record your voice and run the TFFT to see the voiceprint.
"Audio SA" can also be used for FFT-related learning. You can also check changes in important characteristics such as FFT frequency resolution and dynamic range while switching the FFT size and window function.
As an additional function, we have implemented a simple waveform generator, so please try it when learning. The simple waveform generator can generate sine waves, square waves, Gaussian white noise, and their combinations.
When using TFFT images for machine learning, etc., it will be necessary to give sufficient consideration to the settings.
"Audio SA" allows you to set the audio waveform analysis range, FFT size, power spectrum scale, window function, and drawing color.
The analysis range of the audio waveform is set by scaling and moving the audio waveform. The displayed range becomes the analysis range.
Tap the play button to play only the analysis range, which is convenient for checking.
FFT size can be selected from 256,512,1024,2048,4096,8192,16384,32768.
(However, you can select from 256, 512, 1024, 2048, and 4096 during recording and playback.)
The power spectrum scale can be selected from Linear scale, Log scale, and Mel scale.
For Mel scale, you can set the break frequency. The mel scale is close to a linear scale up to the break frequency and close to a log scale after the break frequency. 700Hz, which is the most commonly used frequency, is set as the default value.
The window function can be selected from Blackman, Hamming, Hann, Rectangular.
It is recommended to choose Blackman when wide dynamic range is required and Hamming when high frequency resolution is required.
Roughly speaking, Hann is a trait between Blackman and Hamming.
For Rectangular, no special window function is multiplied during FFT transform. The audio data cut out from the audio waveform for the FFT size is used as it is.
In addition, the lower limit of the dynamic range when drawing TFFT images can also be set. It's easy to set up, just swipe up and down on the FFT image. The part displayed as the FFT image is drawn as it is in the TFFT image.
"Audio SA" consumes tickets to record audio. Tickets can be earned by watching ads.
However, if you purchase "Remove Ads" as an in-app purchase, you will be able to record without a ticket.
[details]
https://app.brain-workout.org/spectrumanalyzer-e/
The created TFFT image can be exported as a high resolution image. (Image size example iPhoneSE3: 4096×4096, iPhoneX: 6144×6144)
If you just want to try creating a voiceprint, you don't need to worry about the settings. Just record your voice and run the TFFT to see the voiceprint.
"Audio SA" can also be used for FFT-related learning. You can also check changes in important characteristics such as FFT frequency resolution and dynamic range while switching the FFT size and window function.
As an additional function, we have implemented a simple waveform generator, so please try it when learning. The simple waveform generator can generate sine waves, square waves, Gaussian white noise, and their combinations.
When using TFFT images for machine learning, etc., it will be necessary to give sufficient consideration to the settings.
"Audio SA" allows you to set the audio waveform analysis range, FFT size, power spectrum scale, window function, and drawing color.
The analysis range of the audio waveform is set by scaling and moving the audio waveform. The displayed range becomes the analysis range.
Tap the play button to play only the analysis range, which is convenient for checking.
FFT size can be selected from 256,512,1024,2048,4096,8192,16384,32768.
(However, you can select from 256, 512, 1024, 2048, and 4096 during recording and playback.)
The power spectrum scale can be selected from Linear scale, Log scale, and Mel scale.
For Mel scale, you can set the break frequency. The mel scale is close to a linear scale up to the break frequency and close to a log scale after the break frequency. 700Hz, which is the most commonly used frequency, is set as the default value.
The window function can be selected from Blackman, Hamming, Hann, Rectangular.
It is recommended to choose Blackman when wide dynamic range is required and Hamming when high frequency resolution is required.
Roughly speaking, Hann is a trait between Blackman and Hamming.
For Rectangular, no special window function is multiplied during FFT transform. The audio data cut out from the audio waveform for the FFT size is used as it is.
In addition, the lower limit of the dynamic range when drawing TFFT images can also be set. It's easy to set up, just swipe up and down on the FFT image. The part displayed as the FFT image is drawn as it is in the TFFT image.
"Audio SA" consumes tickets to record audio. Tickets can be earned by watching ads.
However, if you purchase "Remove Ads" as an in-app purchase, you will be able to record without a ticket.
[details]
https://app.brain-workout.org/spectrumanalyzer-e/
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최신 버전 1.0.3의 새로운 기능
Last updated on Feb 20, 2024
오래된 버전
performance improvement
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Version History
1.0.3
Feb 20, 2024
performance improvement
1.0.2
Sep 3, 2023
performance improvements
1.0.1
Jun 2, 2023
performance improvements
1.0
Jan 8, 2023
Audio SA FAQ
제한된 국가 또는 지역에서 Audio SA를 다운로드하는 방법을 알아보려면 여기를 클릭하십시오.
Audio SA의 최소 요구 사항을 보려면 다음 목록을 확인하십시오.
iPhone
iOS 14.0 이상 필요.
iPad
iPadOS 14.0 이상 필요.
iPod touch
iOS 14.0 이상 필요.
Audio SA은 다음 언어를 지원합니다. 영어, 일본어
Audio SA에는 인앱 구매가 포함되어 있습니다. 아래 요금제를 확인하세요.
Remove ads.
$3.99
