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The new trend in video! Sony digital audio microphone analysis

2022-12-08 06:42:44 [the scenery ]
The new trend in video! Sony digital audio microphone analysis

1. "Sound", which is as important as "shadow"

With the increasing demand for video shooting, sound recording has gradually become an area that creators pay more and more attention to outside the video screen. "Sound" becomes as important as "image". Whether it is from the vocal recording of Vlogs in daily life, the environmental sound pickup of ecological photography, or even the field of professional film and television creation, high-quality and stable audio recording has become a very important part of the video creation workflow. The Sony digital audio microphone was born to meet the needs of video creators for high-quality audio. Compared with traditional analog audio microphones, it can achieve clearer and purer sound recording, and with Sony Mirrorless™ cameras, it has become a reliable partner for user video creation. The video is loading...

2. The difference between digital audio and analog audio microphones

Microphones have two interface types: analog and digital audio. Most common microphones on the market use analog audio interfaces , you need to connect the microphone to the fuselage through a 3.5mm audio cable for sound collection; while Sony uses the digital audio interface supported by the Mi hot shoe to achieve digital audio signal transmission. With the increasing requirements for high-quality and low-noise sound recording in daily and various environments, Sony's "Digital Audio Interface" is a new generation of sound recording solutions for the expansion and increasing demands of Mirrorless™ video shooting users. From the original way of transmitting analog audio information to the camera body, it is converted into digital audio signals and directly transmitted to the camera, which reduces the noise and signal attenuation during the conversion process, and improves the sound quality of video recording. In addition, compared with the traditional analog signal interface, the digital audio interface has a stronger anti-interference ability and is not easy to pick up noise due to the absence of extra cables. At the same time, the sampling density is also greater, and the sound quality restoration is naturally better.

3. Advantages of digital audio microphones

Sony digital audio microphones have built-in digital signal processors and support digital audio interfaces to obtain low noise, clearer and purer audio sound quality. In addition, Sony's digital audio microphones are more functional and flexible, without the shackles of cables, and no need to buy additional batteries separately. Some products can also implement hot shoe power supply and wireless charging functions. Finally, it can also save more time for post-processing of sound noise.

4. Details of Sony's digital audio microphones

Sony's current digital audio microphones can be divided into 3 categories, a total of 5 products, two shotgun microphones: ECM-B1M and ECM-B10; two wireless microphones: UWP-D21/D27 and ECM-W2BT; and XLR-K3M Microphone Adapter Kit for XLR.

UWP-D21/D27 and XLR-K3M

The wireless microphone UWP-D21/D27 supports UHF frequency stable output and full frequency scanning mode, easy to set up and portable, and has IR synchronization function , very suitable for professional video users with FX6, FX3 and Alpha 7S III and other models for news interviews and program recording; XLR-K3M microphone adapter set supports a variety of connection methods, with rich radio control, which helps in a wide range of applications It provides high-efficiency and high-quality recording in-house, and can simplify the post-processing process. It is suitable for professional video teams to shoot reality shows and documentaries with equipment such as FX3 and FX6. The above two products are more inclined to professional-level video shooting. For scenes with greater user demand, such as Vlog/daily video creation, shotgun microphones ECM-B1M and ECM-B10, and wireless microphone ECM-W2BT are required.

Shotgun Microphone ECM-B1M

Sony Shotgun Microphone ECM-B1M adopts new signal processing technology, and at the same time realizes the compact and lightweight design of the microphone and the directionality of sound recording. transsexual. Built-in 8 high-performance microphone units with advanced digital signal processing capabilities, and provides three selectable directivity modes in a compact body of only about 99.3 mm, namely strong directivity (supercardioid), single directivity (cardioid), omnidirectional, directional pickup is excellent. When connected to a body that supports digital audio signals via the Mi Multi-Interface Hot Shoe, the audio is transmitted directly to the camera as a digital signal, resulting in better sound quality with reduced external noise and performance degradation, and at the same time, the reduction of the microphone itself. Noise Mode, Low Noise Mode, and the windscreen also go a long way in eliminating noise. Shotgun Microphone ECM-B1M is suitable for professional video users to shoot Vlog videos with Alpha 7S III, Alpha 7 IV and Alpha 7C, and also suitable for ecological photographers to shoot ecological videos with Alpha 1, Alpha 7S III and Alpha 7 IV and other models Such as outdoor bird photography.

The Shotgun Microphone ECM-B10

The Shotgun Microphone ECM-B10 can be regarded as the "Youth Edition" of the ECM-B1M, and also supports three directivity modes to adapt to different environments. need. Support hot shoe power supply, no need for separate battery power supply, stable shooting outdoors. There is also no need for cable connection, which can avoid unnecessary noise caused by loosening or friction of the body due to accidental touch of the cable. In addition, due to the use of 4 microphone high-performance microphone units, it is more compact and compact, and it also prevents the microphone from entering the lens when shooting with a wide-angle lens. The ECM-B10 is very suitable for video enthusiasts to use with the Alpha 7 IV for live broadcast, and it is also very suitable for indoor evaluation with the Alpha 7 IV, Alpha 7S III and ZV-E10.

Wireless Microphone ECM-W2BT

Wireless Microphone ECM-W2BT has a split design that allows the receiver to be connected to a Sony Mirrorless™ camera, via a Mi hot shoe that supports digital audio interface , enabling low-noise digital audio recording. By improving the stability of the wireless connection between the microphone and the receiver, flexible audio recording is achieved, and the ECM-W2BT can perform stable transmission even at a distance of up to 200 meters in an open and unobstructed environment. The wireless microphone ECM-W2BT has different modes of sound capture, providing users with greater creative freedom. The 3 recording modes include MIC mode, MIX mode and the new RCVR mode, users can use different modes to record voice and ambient sound according to their needs. In addition, the ECM-W2BT also provides a windshield to effectively reduce wind noise when recording outdoors. The camera's Mi hot shoe can provide auxiliary power to the receiver end of the microphone, and the recording battery life is up to 9 hours. The wireless microphone ECM-W2BT is suitable for a variety of scenarios, and can be used for outdoor vocal recording and indoor long-term recording. Filming on topics such as interviews, travel, camping and meeting minutes.

5. Written at the end

As the video market gradually develops into the dual video and video fields, only high-quality picture effects can no longer meet the user's visual needs, better The picture quality also needs better sound quality. As a technology leader in the imaging industry, Sony's digital audio technology can be said to be the direction and trend of current camera microphone technology. At present, in addition to Sony, other camera brands have gradually begun to deploy their own digital signal transmission hot shoes, from better sound quality. , smaller size, more convenient and secure connection and signal transmission, it is believed that digital audio transmission is an inevitable trend in the development of microphones in the future.

(Responsible editor:Light)

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