PilferShush Jammer
阻止未授權使用內置麥克風
Features a passive jammer technique that engages the microphone thereby
blocking other apps from using it. But does NOT listen to or record any of the
audio from the microphone. It uses 0% CPU and no noticeable battery use. However
is not intended to be left on permanently due to the variety of triggers that
can cause audio_focus_state changes (VOIP etc).
Also features an active jammer that emits tones constrained to the NUHF
range of 18 kHz to 24 kHz range. User determined carrier frequency and drift
limits with rate for random tone emissions depending on the device capabilities.
For instance 20000 Hz carrier, drift limit 1000 Hz and rate slow - will output
random frequency between 19 kHz and 21 kHz approximately every second.
Audible artifacts are present during the NUHF tones but this may be changed in a
future release. Experimental white noise output may not be very effective at
blocking and is a somewhat annoying sound. The device speaker output may not
have enough amplitude to block unwanted NUHF signals - testing will determine.
* Manual start
* Notification post when running
* Auto stop and restart when telephony interrupts
* Currently relies on audio_focus_state changes for auto-switching
* Active jammer
blocking other apps from using it. But does NOT listen to or record any of the
audio from the microphone. It uses 0% CPU and no noticeable battery use. However
is not intended to be left on permanently due to the variety of triggers that
can cause audio_focus_state changes (VOIP etc).
Also features an active jammer that emits tones constrained to the NUHF
range of 18 kHz to 24 kHz range. User determined carrier frequency and drift
limits with rate for random tone emissions depending on the device capabilities.
For instance 20000 Hz carrier, drift limit 1000 Hz and rate slow - will output
random frequency between 19 kHz and 21 kHz approximately every second.
Audible artifacts are present during the NUHF tones but this may be changed in a
future release. Experimental white noise output may not be very effective at
blocking and is a somewhat annoying sound. The device speaker output may not
have enough amplitude to block unwanted NUHF signals - testing will determine.
* Manual start
* Notification post when running
* Auto stop and restart when telephony interrupts
* Currently relies on audio_focus_state changes for auto-switching
* Active jammer
版本
雖然在下方可選擇下載 APK 檔案，但要留意這樣的安裝方式將不會收到更新通知，是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。
下載 F-Droid-
此版本需要 Android 5.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。
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此版本需要 Android 5.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。
-
此版本需要 Android 5.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。