说明
Features of SmarterNoise Pro - sound meter analyzer recorder:
• Sound level measurement in video mode
• Sound level measurement in audio mode
• Sound meter snapshot camera
• Record video and audio files
• Sound level activated audio recording
• Limit recording length
• Frequency spectrum display
• Peak frequency detection
• A-, C- or no weighting
• Export of measurement data in CSV format
• Full HD (1080p), HD (720p) or VGA (480p) video resolution
• Three video quality settings
• Archive for saved files
• Sharing of saved files
• Add text notes to measurements
• Calibration
• Location, address
• Time and date
• Continuous Leq, LAeq, LCeq value
• 10 second sound level average (Leq, LAeq, LCeq)
• 60 second sound level average (Leq, LAeq, LCeq)
• Maximum and minimum decibel level
About decibels and sound level measurement
The unit for measuring sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of about 3 decibels. The reference point of 0 decibel is set at the intensity of the least perceptible sound, the threshold of hearing. On such a scale a 10-decibel sound is 10 times the intensity of the reference sound. Highlighting this is important as already a few decibels higher or lower makes a noticeable difference in how noise is perceived.
The preferred method to describe sound levels that vary over time, resulting in a single decibel value measuring the total sound energy over the period, is called Leq. It is however common practice to measure sound levels using A-weighting, which attenuates lower and higher frequencies that the average person cannot hear. In this case the value is called LAeq.
A- and C-weighting
The A-weighting is a standard, commonly used filter that attempts to alter the measured sound pressure levels to more closely match the perception of the human ear. A-weighting makes the sound level meter less sensitive to very high (over 8000 Hz) and low frequencies (below 1000 Hz).
C-weighting also attenuates low and high frequencies, but the attenuation of low frequencies is much less severe compared to A-weighting.
Calibrate:
Calibrate the application using the calibration tool found in the settings menu. Phones and their components vary in quality and setup so you need to calibrate the app in order for the results to be relatively comparable. One suggestion is that you close the window and door to your bedroom or bathroom, turn off appliances, and once its very quiet calibrate the app so the reading is about 30 decibel.
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新版变化
- 版本: 1.051
- 已更新:
- - The frequency graph display can now be zoomed by pinching and scrolled by dragging.
- Added PDF sharing.
- Added Polish translation.
价格历史
- 今天: $4.99
- 最小值: $0.99
- 最大值: $6.99
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- Agibili
- 平台: Android 应用 (6)
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- 积分: 2 + 2,594 ¡
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其他信息
- 版本: 1.051
- 类别:
Android 应用›工具 - 操作系统:
Android 6.0 - 大小:
23 Mb - 内容分级:
Everyone - Google Play 评分:
4.3(127) - 已更新:
- 发布日期:
通讯录
https://smarternoise.com/pro «SmarterNoise Pro». 平台： Android. 类别： 工具. 开发商： «Agibili». 首次发布： . 最后更新： . 目前价格： $4.99. 最低记录价格： $0.99 (). 最高记录价格： $6.99 (). 该条目尚未在 AppAgg 上获得评分或评论。 商店： Google Play. 店铺评价： 4.3. 投票数： 127. AppAgg 会跟踪 «SmarterNoise Pro»的价格历史、评分和用户反馈。 关注未来折扣和更新： RSS. AppAgg 不托管应用程序或分发软件。 所有商标、徽标和屏幕截图均属于其各自所有者。
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