Electronic Voice Phonomenon or EVPs are voices from the other side manifesting themselves in our world. The human ear is only capable of hearing up to 12 kHz or so depending on age, and hearing ability. Digital Voice Recorders often will catch EVPs that aren’t audible to the human ear because they operate up to frequencies much higher than the human ear can hear. For this reason it is important to have a Digital Voice Recorder that has a large frequency range, or band width.
A huge concern should be what is the quality of the audio?. Since you will need to use software to process the audio, you will need to make sure the audio is as high resolution as possible. This will really come in handy when the EVPs are very quick, and you need to be able to slow them down, and still make out what is being said. Also, the value of the audio will greatly increase if you get a really good one.
Since we need to be able to get the voice recordings off from the device, and onto the computer easily, we need to consider how the data transfer takes place. Most devices have internal memory, and the data will need to be transferred to the computer using a USB cable. Most have an add on MicroSD so you can add more memory. Usually you won’t do too many long length recordings, but the SD card can be a nice option. EVP sessions tend to be numerous short audio clips usually after you have requested some response. Anything over 1 GB in memory size should be plenty, but this all depends on your style of investigation.
Another thing to consider is the format that the audio is saved in. You would prefer .mp3 format, since every voice processing software can handle a mp3 format voice file. It also makes it easier to send the file out in an email since it is a compressed format, and everyone can play an .mp3 without installing tedious special software.
You also want the device to be comfortable for you to hold, and have the Record/Stop button easily, and quickly accessible. A LED to indicate what the device is doing too can can be a big bonus, since you will be working in darkness most of the time.
Temperature rating is a big concern for the device. Spirits have the ability to create severe temperature drops, and this becomes a big problem because most consumer devices are only designed to work at room temperature. In fact, spirits interfere with equipment thermally just as much as electromagnetically, so we need to have the right equipment.
We also need to consider what level of electromagnetic immunity of the device has since spirits are capable of generating large EMF in and around the device. Unfortunately, most consumer goods are only tested to FCC Part A, which is only concerned with how much EMF the device itself generates, not how much it can withstand without malfunctioning. It is important that the device doesn’t generate much EMF as well, because you don’t want your EMF meter giving you false readings every time you use your voice recorder, or any other electronic device for that matter.
Further, we can look at what is the technology of the microphone itself. Since this is the sensor you will be using for detection, it is critical that you have the best chance possible of making a high quality detection.
Since most manufacturers of voice recorders are out to make as much profit as possible, they tend to not design the devices with as much quality as our industry really demands. That being said, we need to be very picky about what we are buying, and know what the devices limitations are after we make the purchase.
|Recorder||Recording Media||Stereo?||Audio Format||Microphone Type||Memory Size||Ease of Use||LED Indicator?||Max Audio Quality||Frequency Range||Temperature Range|
||Built in Flash Memory||No||Windows Media® Audio (WMA), Cannot Transfer to Computer||Electret Condenser Microphone (Monaural)||1 GB (67 Hours, in HQ Mode)||Large Well Placed Buttons||Yes||TBD||HQ mode: 70 to 13,000 Hz
SP mode: 70 to 8,000 Hz
|0 – 42°C
(32 – 108°F)
||Built in Flash Memory||No||Windows Media® Audio (WMA), Cannot Transfer to Computer||Electret Condenser Microphone (Monaural)||2 GB (98 Hours, in HQ Mode)||Large Well Placed Buttons||Yes||TBD||HQ mode: 70 to 7,900 Hz
SP mode: 70 to 4,700 Hz
|0 – 42°C
(32 – 108°F)
||Built in Flash Memory, Micro SD Card Slot||No||mp3 & WMA Recording, USB Connect to Computer||Electret Condenser Microphone, Can Use External Also||2 GB (53 Hours, in 192kbps Mode)||Medium Sized, Well Placed Buttons||Yes||192 kbps, mp3 mode||192kbps mode: 70 Hz to 19,000 Hz||0 – 42°C
(32 – 108°F)
|Sony Digital Flash Voice Recorder (ICD-PX312)
||Built in Flash Memory, Micro SD Card Slot||No||mp3 Recording, USB Connect to Computer||Electret Condenser Microphone, Can Use External Also||2 GB (53 Hours, in 192kbps Mode)||Medium Sized Buttons, Location Not Great||No, and No LED Backlight, Hard to Read in the Dark||192 kbps, mp3 mode||192kbps mode: 75 – 20,000 Hz||TBD|
|Sony Digital Flash Voice Recorder (ICD-AX412)
||Built in Flash Memory, Micro SD Card Slot||No||mp3 Recording, USB Connect to Computer||Electret Condenser Microphone, Can Use External Also||2 GB (22 Hours, in 192kbps Mode)||Large Well Placed Buttons||No, and No LED Backlight, Hard to Read in the Dark||192 kbps, mp3 mode||192kbps mode: 75 – 20,000 Hz||TBD|
|Sony Digital Flash Voice Recorder (ICD-UX523BLK)
||Built in Flash Memory, Micro SD Card Slot||Yes||mp3/WMA/M4A Recording, USB Connect to Computer||Built in Stereo Microphone||2 GB (44 Hours, in 192kbps Mode)||Large Well Placed Buttons||Yes, LED Backlit||192 kbps, mp3 mode.||320kbps m4a mode: 50 – 20,000 Hz
192kbps mp3 mode: 50 – 20,000 Hz
|Zoom H1 Handy Portable Digital Recorder
||Built in Flash Memory, Micro SD Card Slot||Yes||mp3/WAV Recording, USB Connect to Computer||Built in Dual Stereo Microphone||2 GB (10 Hours, in 320kbps Mode)||Easy Intuitive Button Placement||Yes, LED Backlit||320 kbps, mp3 mode.||320kbps mp3 mode: 70 – 20,000 Hz||TBD|
The Zoom H1 is a professional grade recorder for the money, and the accessory pack is well worth the investment, especially for psychic readings, seances, and EVP sessions. I’m still waiting for a response from them regarding the operation temperature range, and the level EM noise Immunity, but considering the other options it is no worse.