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SimpleCircuitBoards.com
Digital Sound Recorder 6/18/2006
SimpleCircuitBoards.com
Digital Sound Recorder
Here is a nice little board that allows you to record up to 60 seconds of high quality sound that can be replayed at the touch of a button or triggered by any dry contact closure (PIR, mat, etc.). The board is based on the ISD sound chip and is replaceable with other versions that will give you more recording time. The source of the sound to be recorded can be from your computer or other non-amplified source. The recorded sound can then be played back through amplified speakers like the ones that are attached to your computer. There is also a switch that puts the board in loop playback. It operates on 7.5 to 24 VDC.
Details: As mentioned above, this board uses the ISD 2560 chip that provides 60 seconds of high quality mono sound recording and playback. If you require more recording time, you can replace the ISD chip with other versions that will give you more time but the way they accomplish this is to cut down on the sampling rate so the sound quality may be slightly diminished. Inputs and outputs are through 3 onboard 3.5 MM (1/8”) audio jacks. One jack is used for recording, one jack is used to monitor the sound as you are recording it (via amplified speakers or headphones) and the third jack is to output the recorded sound (again, via amplified speakers). There is a push-button on the board that is used for recording the sound and initiating playback. There is also a 2-position terminal strip that you can hook to any momentary-type dry-closure contact (like a relay, PIR, mat, etc.) so that the sound playback can be triggered remotely. To record a sound, hook your sound source (e.g., the speaker output from the sound card on your computer) to the Input Jack on the sound board. If you are recording a stereo sound, you will need to get a stereo-to-mono adapter in order to capture both the left and right channels, otherwise, it will only record one side
Digital Sound Recorder 6/18/2006
SimpleCircuitBoards.com
Digital Sound Recorder
Here is a nice little board that allows you to record up to 60 seconds of high quality sound that can be replayed at the touch of a button or triggered by any dry contact closure (PIR, mat, etc.). The board is based on the ISD sound chip and is replaceable with other versions that will give you more recording time. The source of the sound to be recorded can be from your computer or other non-amplified source. The recorded sound can then be played back through amplified speakers like the ones that are attached to your computer. There is also a switch that puts the board in loop playback. It operates on 7.5 to 24 VDC.
Details: As mentioned above, this board uses the ISD 2560 chip that provides 60 seconds of high quality mono sound recording and playback. If you require more recording time, you can replace the ISD chip with other versions that will give you more time but the way they accomplish this is to cut down on the sampling rate so the sound quality may be slightly diminished. Inputs and outputs are through 3 onboard 3.5 MM (1/8”) audio jacks. One jack is used for recording, one jack is used to monitor the sound as you are recording it (via amplified speakers or headphones) and the third jack is to output the recorded sound (again, via amplified speakers). There is a push-button on the board that is used for recording the sound and initiating playback. There is also a 2-position terminal strip that you can hook to any momentary-type dry-closure contact (like a relay, PIR, mat, etc.) so that the sound playback can be triggered remotely. To record a sound, hook your sound source (e.g., the speaker output from the sound card on your computer) to the Input Jack on the sound board. If you are recording a stereo sound, you will need to get a stereo-to-mono adapter in order to capture both the left and right channels, otherwise, it will only record one side