preface:

The busy urban life has brought too much pressure to most modern people, and the fast-paced lifestyle has kept them busy. In fact, there are many beautiful things in life that deserve your careful taste. Sometimes even a small thing can bring you happiness. The key is to feel life with your heart. Now you just pick up the microphone, follow your mobile phone to sing a song anytime and anywhere, and relax.

  Unpacking:

This time, we introduce the capsule microphone of Singing Bar. Official model: Elf.    

It is an entry-level microphone specially launched by the Singing Bar, which is provided by the operator for trial use.

  Open the box cover, and the singing bar capsule microphone ELF (hereinafter referred to as ELF) inside is bright red.

All accessories include ELF microphone, audio cable, charging cable and instructions.

  The ELF is 140mm high and designed as a cylinder with a diameter of 40mm. It can be seen from the above figure that ELF has two sets of adjustment sliding buttons.

ELF is a condenser microphone with a highly sensitive capacitive 9.7mm head. What is a condenser microphone?

From the figure, we can understand the composition of the condenser microphone: 1 Sound Waves 2. Diaphram 3. Back Plate 4. Battery 5. Resistance 6. Audio Signal In fact, the microphone will inevitably cause sound field scattering in the sound field, so there are two definitions of sensitivity. One is the sound pressure actually acting on the diaphragm, which is called sound pressure sensitivity, and the other is the sound pressure of the sound field where the microphone is not placed in the sound field, which is called sound field sensitivity. The sound field sensitivity is divided into free field sensitivity and diffusion field sensitivity. Generally, sound pressure sensitivity is given by microphones for recording, and sound pressure or sound field sensitivity is given by microphones for measurement due to application type. The unit of sensitivity is V/Pa (V/Pascal, V/Pa), which is usually expressed by sensitivity level, and the reference sensitivity is 1V/Pa) (from online data search).

The diameter of the ELF microphone part is 38mm, the area of the bionic hemispherical sound net has reached 7998mm ², and the volume of the voice cavity has reached 26245mm ³. The use of heart type direction is ≥ 15 dB, the difference between 0 ° and 180 ° is 1kHz, so what is the heart type direction? What is the form of 0 ° and 180 °?

The cardioid directional type describes that the microphone has the latest radio effect from the front, while the sound from other directions will be attenuated. Generally, heart type directional microphone is used in weddings, activity sites, documentaries or KTV.

While 0 ° and 180 ° indicate the directivity of the microphone. The directivity is expressed by the difference between the sensitivity of the microphone in the direction of 0 ° on the front and 180 ° on the back. Those whose difference is greater than 15dB are called strong directional microphones. To sum up, when holding an ELF, the best effect is that the front end of the microphone is directly facing the mouth.

There are two sets of adjustment sliding buttons on the front of ELF. The upper part adjusts the microphone volume and the lower part adjusts the reverberation effect. Reverberation and echo are different. Many people confuse the two concepts. Reverberation refers to the gradual attenuation of mixed reflected sound from multiple angles and times. Reverberation contributes to the harmony of music. Echo and original sound sound more like two sounds. Generally, many people like to set the reverberation time to be very long. In fact, the reverberation attenuation time of the most famous Vienna Concert Hall is only 2.05 seconds.

There is a big word "sing" on the back of the ELF. This is the switch of the ELF. As mentioned above, the capacitor McDull needs batteries to supply power. ELF is equipped with 400mAh polymer lithium batteries. The official service life of the batteries is not clear. After about 6 hours of use, the author still did not prompt that the power is insufficient.

The bottom of the ELF is equipped with a charging port, an audio connection port and a power indicator. After the ELF is normally started, the indicator light is white; When the power is less than 5%, the indicator light will flash white; The indicator light is red when charging; The charging completion indicator turns off automatically.

The charging cable of ELF is also a show off, and there is also a conspicuous "singing" logo at the USB interface. Mirco USB 2.0 standard interface protocol.

The audio cable has a 3.5mm interface, which is common to Android and Apple phones. It is divided into four parts through the black insulator, from left to right according to the national standard. The four parts represent the ground wire, microphone, right channel and left channel respectively.

According to the diagram at the bottom of the ELF, it is easy to connect the phone with the microphone.

The app of Singbar is available in Android, IOS, WP and other versions. It is very easy to register and use.

Now start the singing app and get ready to sing a song.

  Measured:

The same content is 64k stereo, and the recording effect of original sound, reverberation 50%, and reverberation 100% is compared. From the perspective of software reverberation, 30%~50% of reverberation can meet all the needs of today's popular songs (reverberation time is more than 30ms); After reaching 100% reverberation, the attenuation time is about 1.7 seconds, which is far more than the demand of the latest voice attenuation time within 1 second. This is that the reverberation effect should be more suitable for orchestral music.

Two stupid pirates - children's picture book story recording, reverberation 20% effect

Music Comparison , in a friend's KTV.

//kg.qq.com/node/play?s=VuQqr6Vgtg1QdVgb  

//kg.qq.com/node/play?s=b098zhbC8J2TYbPu&from=message

//kg.qq.com/node/play?s=1 -7_cW1OK1GBx1Qw&lang=zh_Hans 

Summary:

As an entry-level condenser microphone launched by Sing Bar, the capsule microphone of Sing Bar has three colors: show off red, cute girl pink and cool black. For those who like to use mobile phone karaoke, it is definitely a good face; 9.7mm voice head with heart shaped directional design can completely control KTV, activity scene and other scenes; Built in 400mAh lithium battery, it can carry the load for 6 hours continuously and work normally without any problem, so you can get enough at one time; Although the vibrating membrane in the condenser microphone does not need to be cooked specially, everyone needs to have their own adaptation process to find the appropriate reverberation effect. Well, that's all. Let's sing together if you have anything to do. Hi, let's sing a song. My bar number is newss. I wish you all happy.

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