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Comparison Sony ICD-PX240 vs Philips LFH 0865

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Sony ICD-PX240
Philips LFH 0865
Sony ICD-PX240Philips LFH 0865
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Typevoice recordervoice recorder
Built-in memory4 GB8 GB
Memory card typemicroSD
Recording
Microphone typemonostereo
Microphonebuilt-in/externalbuilt-in/external
External microphone connectormini-Jack 3.5 mm
Recording formatMP3MP3
Max. recording quality (MP3)192 Kbps
Maximum recording time
65 h /at 128 Kbps/
2160 h
Frequency range50 – 12000 Hz
Features
microphone sensitivity change
record quality change
voice activation
 
recording timer
loop recording
microphone sensitivity change
record quality change
voice activation
record labels
 
 
More features
Additional features
computer connect
 
MP3 player
built-in speaker /power — 300 mW/
headphone output
computer connect /USB 2.0/
button lock
MP3 player /WMA/
built-in speaker /diameter 30 mm/
headphone output
General
LCD display
Display backlight
Power source2xAAAli-Ion battery
Battery indicator
Dimensions (HxWxT)115x38x21 mm107х39х18 mm
Weight72 g58 g
Added to E-Catalogfebruary 2015december 2011

Built-in memory

The capacity of the voice recorder's own storage. The larger the built-in memory, the more material can be recorded on the recorder without the need to free up memory or use additional cards. This parameter is also important if you want to use the device also as a portable flash drive (many modern models allow this).

Memory card type

— SD. One of the formats used in audio, video, computer technology, etc.; Almost every modern laptop has an SD card reader. However, the dimensions of such cards (32x24 mm) are relatively large for portable equipment, and therefore they are used relatively rarely in voice recorders. And they are often represented by more modern SDHC or SDXC cards with increased memory capacity and support for the high-speed UHS bus. Accordingly, SDXC support guarantees comfortable work with SDHC and SD, and SDHC support will not fail when connecting SD cards.

— miniSD. A slightly reduced (up to 22x20 mm) variation of the SD standard, otherwise completely identical to it (up to compatibility with SD-card readers when using simple adapters). It is rare due to the widespread use of even smaller microSDs.

— microSD. The most compact version of SD memory cards to date, have a size of 15x11 mm and a capacity of up to 4 GB. Due to their small size, they are widely used in portable electronics: in fact, they are the standard for mobile phones, and are also widely used in voice recorders. Like miniSD, they can be read by original SD card readers using an adapter.

— microSD HC. The second generation of the microSD standard; characterized by increased capacity, reaching 32 GB. In a voice recorder (and in general any card reader), ordinary microSD cards can also be used for microSD HC cards, but it is impossible to do the opposite — the card will not be read.

...— CompactFlash (hereinafter referred to as CF). One of the first memory card standards, it is still used due to its decent data transfer speed and impressive volumes (up to 128 GB). However, the dimensions of these cards are no less impressive — 42x36 mm. As a result, they are poorly suited for pocket format equipment and are rarely used in voice recorders — mainly in advanced models, where the priority is functionality and recording quality, rather than compactness. If the recorder is designed for CF Type II cards, it can work with all types of CF, and devices under Type I are only compatible with this type.

— memorystick. A proprietary standard developed by Sony and used primarily in its devices. It has a number of variations that differ in dimensions, volume and compatibility, and therefore, when buying a card for such a voice recorder, it is worth clarifying the specific MemoryStick specification used. The standard is rather poorly spread: firstly, because of its closeness (that's why, by the way, full compliance with it is guaranteed only in original Sony cards), and secondly, because of the high price of the cards themselves.

xD-Picture. Cards originally made by Olympus and Fujifilm for their digital cameras. The advantages of such cards are high reliability and compactness (20x25 mm), the disadvantages are high cost and relatively small volumes (up to 2 GB). As a result, dictaphones for xD-Picture are very rare.

Microphone type

The built-in microphone type determines the mode (number of channels) in which the voice recorder records sound.

Mono. The simplest option: one microphone that records sound in mono format, i.e. without separation into left and right channels. It is impossible to provide a "surround" sound with such a recording, however, in the case of voice recorders, this is not decisive, because. usually in such a recording it is not the volume of the sound that is important, but the intelligibility of speech — and it is fully provided by a monophonic microphone.

Stereo. In this case, a pair of microphones is usually used, spaced apart on the sides of the case; the sound is recorded in stereo, and the volume of the sound is achieved due to the difference in the sound reaching the left and right microphones. Considered somewhat more advanced than mono, although it does not provide better speech intelligibility by itself.

External microphone connector

Separate input for connecting an external microphone. See "Connecting an External Microphone" for details.

Max. recording quality (MP3)

The higher the amount of data per unit of time that is used to transmit the audio stream, the higher the quality of the MP3 recording is provided. So, the base bitrate of 32 Kbps means encoding one second of sound using 32 thousand bits of information - it is used only for speech transmission. Much more common in portable audio recording devices is the recording quality of 128 Kbps, 192 Kbps and 256 Kbps. The maximum possible bits rate for the MP3 format is 320 Kbps. The pursuit of the highest quality of sound recording makes sense for advanced models of recorders; for a conditional voice recorder for recording lectures, the basic bitrate parameters will be quite enough. Also keep in mind that the quality of sound recording affects the size of the resulting files and the duration of the voice recorder.

Maximum recording time

The maximum continuous recording time for the voice recorder. It depends primarily on the amount of memory (see "Built-in memory", "Memory card slot"), it is also directly related to the recording quality: the higher the quality, the more space the material occupies and the shorter the maximum recording time. In this regard, manufacturers usually indicate in the specifications the maximum possible recording time, that is, the recording time with minimum quality; with higher quality and time will be less.

Frequency range

The range of sound frequencies that the recorder is capable of perceiving and recording. A person is able to hear sound on average from 16 Hz to 20 kHz, but the range of the actual human voice is much narrower — approximately 100-3500 Hz. Therefore, if you plan to use a voice recorder to record speech, these frequencies will be enough. If the purpose of the recorder is not limited to this, you should pay attention to models with a wider range — and in this case, the wider it is, the fuller and richer the recording will be.

Features

Change microphone sensitivity. The ability to change the sensitivity of the microphone allows you to optimally adjust it to the surrounding conditions. So, with a low level of extraneous noise (for example, at a lecture or a press conference), sensitivity can be set to the maximum in order to guarantee that everything that is needed is recorded, and in a noisy environment (for example, an interview in a cafe), on the contrary, it can be reduced in order to reduce outsiders noise to a minimum.

Change the quality of the recording. Possibility to change the recording quality (usually the bitrate of recorded materials). The volume of the file is directly related to the quality: the higher the quality, the more space the recording takes up. Thus, this function allows you to achieve the optimal balance between sound and memory occupied: for example, for loud intelligible speech without extraneous noise, you can use low quality, in a noisy environment, on the contrary, increase it in order to achieve maximum intelligibility; if there is not much memory left, and nothing can be deleted, lower the quality of the recording, etc.

Voice activated recording. When using this function, the recorder only records when its microphone captures a significant level of sound — in principle, this can be any source, but since human speech is most often recorded, the name of t...his function refers specifically to the voice. With such a recording, the recorder does not record long pauses, which saves both the occupied memory and time (and sometimes nerves) when listening to the recording. The disadvantage of this feature is that activation takes some time and the first sounds may not be recorded on the recording.

— Setting record labels. Ability to assign a unique label to each file. This can be either a number or a time and date, or both. Tags organize entries and make them easier to access, making it much easier to find the right file.

— Recording timer. The timer allows you to set the start time of the recording; when it occurs, the recorder will turn on automatically. Thus, you will be able to record the material you need (for example, a speech or a lecture) from the very beginning, even if you will not be there by the time you start.

— Ring record. The name of this function comes from its resemblance to recording on a magnetic tape closed in a ring. In this mode, the recorder can record regardless of the amount of free memory: new materials are simply recorded instead of the oldest ones. This eliminates the need to clear memory manually and can come in handy if your records quickly become out of date — for example, if you have to take surveys by phone and process the results on the same day. At the same time, this function requires caution, as increases the likelihood of accidentally erasing necessary, but old records.

Additional features

Connecting to a computer. The ability to connect the recorder to a computer, usually via a USB interface. Such a connection can be used to save recorded data on a computer, update the recorder's firmware, and some models allow using them as USB drives and even card readers (if there is a slot for memory cards, see above).

Smartphone control. The ability to control the device remotely from a mobile device. First of all, the function is necessary for recorders that can be installed out of reach of your hands and any movement, pressing a button on the case can adversely affect the recording. But at the moment some new hit can be written.

Lock buttons. The lock prevents the voice recorder from reacting to accidental button presses — for example, when carrying in a tight pocket or purse with a lot of things. By turning it on, you don't have to worry that accidental contact will start recording and drain the battery, erase files, etc. This feature is usually turned on and off by a slider, by pressing multiple buttons at the same time, or in some other way that eliminates the possibility of accidentally unlocking.

— MP3 player. The ability to use the recorder as an MP3 player to listen to music. Technically, almost all models with MP3 support have this capability (see “Recording Format”), however, some voice recorders have a separate “Player” pro...gramme mode that makes listening more convenient. Typically, the player function requires a headphone output (see below).

FM tuner. The tuner allows you to use the player as an FM receiver — in this range today the vast majority of music radio stations broadcast. Some models with a tuner have the function of recording from the air.

— Built-in speaker. On the voice recorder with its own speaker, you can listen to recorded materials without using additional equipment (headphones) or connecting to a computer. It can also be used to play music and FM radio (if available); however, the sound quality of such a speaker is usually not high, and its main purpose is to listen to the actual recordings.

— Headphone output. A connector that allows you to connect headphones to the recorder. Their purpose is generally similar to the built-in speaker (see above), however, the sound quality of even inexpensive headphones is often significantly higher. As a result, it is quite possible to comfortably listen to not only recordings, but also music, radio programs, etc. through headphones. (if available). In addition, headphones are well suited for noisy environments. even open models still provide some sound insulation.
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