- #Put a small audio recorder on phone full
- #Put a small audio recorder on phone android
- #Put a small audio recorder on phone software
- #Put a small audio recorder on phone tv
Examples include the Boya BY M1 (£11.99) and the Rode Smartlav+ Lavalier Microphone for Smartphone (£40.33).
#Put a small audio recorder on phone tv
Most seem to be Lavalier microphones, which are generally used as lapel mics for TV and theatre performances, and for interviews. There are lots of mics available, and I have no idea which is best. There are adapters, but jack plugs are flaky at best - the design goes back to 19th century switchboards - so I’d recommend getting the right type.
GSM Arena only says “3.5mm jack - Yes” for the HTC One M8, so I don’t know if it has an AHJ socket.
#Put a small audio recorder on phone software
Software may be able to handle some of the differences. Apple uses an AHJ layout with non-standard signalling and controls: it’s sometimes referred to as CTIA.
#Put a small audio recorder on phone android
I note that Nokia switched to AHJ when it launched its Lumia phones, and it has also been used by HTC and other Android manufacturers. The original Nokia standard for GSM was called OMTP ( Open Mobile Terminal Platform), while the newer one is called AHJ (American Headset Jack). Just to complicate things, TRRS plugs come in two different types, with the mic connection being in a different place. Technically, these plugs are known as TRS (Tip Ring Sleeve) connectors, and you will need a TRRS version to make mono recordings. In this case, you need a jack-plug with three rings on the end, which is capable of making four connections, ie there’s one extra band for the mic. (The third way is via Bluetooth, but this seems to be very limiting.) Microphone jacks There are two main ways to fit an external microphone to a smartphone: either it plugs into the headphone/mic socket, or connects via a microUSB or similar port. Again, HD Voice offers better quality, but both handsets have to support it, and so does all the network equipment between the two phones.
#Put a small audio recorder on phone full
In fact, the Enhanced Full Rate (EFR) codec used for GSM voice calls offers a maximum of 12.2kbps, which is a fraction of what you’d get from a landline. When it comes to network problems, mobile phones are designed to use very low bit-rates.
(The Lumia 1020 is one of the few smartphones that records good quality stereo.) Some smartphones have more than one built-in mic: one is used for recording while others are generally used to detect and remove background noises. Handsets that support HD Voice ( Wideband audio) or 4G’s Voice over LTE ( VoLTE) should have better audio capabilities, though they still can’t provide the twice-CD-quality stereo of a handheld recorder. Worse, most only support mono recording, not stereo. Mobile phones also operate with a very restricted frequency range, perhaps 300Hz to 3.4kHz, and use low-cut filters and noise gates to suppress background noise. The microphones are tiny and you might well have a problem locating them. When it comes to handset design, smartphones are optimised for on-screen operations such as apps and browsing, not for voice.
However, as with cameras and other features, a smartphone won’t match a dedicated device, such as a handheld digital recorder. Using an external microphone to record sounds avoids both problems, so the results should be acceptable. This is partly a handset design problem, and partly a network design problem. One of the odd things about smartphones is that they are generally not very good at audio. Can I use an external mic with my HTC One M8 for better sound quality? I would like to record talks/meetings/outdoor sounds etc.
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