With the advent of the digital age, vinyl and tape have been dusty, and digital signals have become superior to analog signals. However, as a standard for digital music file formats, the WAV format is too large in size and inconvenient to use. Therefore, in general, we need to compress it into MP3, WMA, FLAC and other formats. At the same time, the popularity of online streaming music has also made audio compression more challenging. So, how to distinguish what is lossless music, what is lossy compressed music? What is the difference between the two? Let the "video new life" first from the sound collection for everyone to talk about... ... Sound collection Sound information is stored digitally in computers and related devices, while natural sound information is analog. The digital signal in the computer is obtained by "sampling" and "quantization". Here is a famous Nyquist sampling theorem: when the sampling frequency is not lower than twice the highest frequency of the sound signal, the sampled number Audio can record and restore the original analog sound with high fidelity, of course, "high fidelity" is also relatively speaking. Generally, the frequency of the audio signal that the human ear can feel is about 20Hz-20KHz. According to the sampling theory, if the sampling frequency is greater than 40KHz, the digitized digital audio can record the analog audio with high fidelity. Composition of digital audio By knowing the sound collection process, we know that digital audio is composed of three parts: sampling frequency, sampling precision, and sound channel number. Sampling frequency: The sampling rate, which is the number of samples per second when recording sound. It is expressed in Hertz (Hz). Sampling accuracy: refers to the dynamic range of the recorded sound, which is in bits. Sound channel: The number of channels (1-8). Popularly speaking, we can think of sound waves as a curve. We know that curves are made up of points. The sampling rate is the number of midpoints per second (horizontal axis of the above figure). The sampling accuracy is the number of midpoints in the dynamic range (the vertical axis of the above figure). The finer the positioning of these two dimensions, the higher the true reproduction of the sound, the better the sound quality, and of course, the larger the audio file. SONY's latest audio format, Hi-Res Audio, is a 192 kHz/24-bit, 6-channel recorded audio file. The size of the lossless format is typically over 200 megabytes. The sampling rate varies depending on the type of use: 8khz: Use by telephone, etc., is enough for recording vocals. 22.05khz: Frequency of broadcast usage. 44.1khz: Audio CD. 48khz: used in DVD and digital TV. 96khz-192khz: DVD-Audio, Blu-ray HD, etc. Sampling accuracy is usually in the range of 8bit-32bit, while 16bit is generally used in CDs.
We supply affordable LED marine lighting to a wide range of clientele,and can fulfil any order, large or small, from small private tanks to large industry sized outfits.Besides,we made aquarium sets use super bright fully submersible LED strip lights which create a beautiful effect on the water and are safe to use all year long.
An aquarium adds a decorative feature to any home. LED lights are becoming widely popular among the aquarium enthusiasts. Specialized Led Aquarium Lights help create a better environment for the fishes and the aquatic plants. They consume less energy and generate less heat as compared to the as compared to the normal lights. The new LED lights do not produce excessive heat even after continuous operation, which helps maintain the water temperature and does not allow for excess evaporation. This helps create a healthy environment for the corals and fishes. LED Aquarium Lights are revolutionary products that add to the beauty of a home while being energy-efficient, environmental-friendly and convenient.
Key Features
1.The lifespan is over 50000 hours,low maintenance costs.
2.Energy conservation,saving over 80% energy than the traditional HPS.
3.High light efficiency,90% of the light will be absorbed by the aquatic plants,while just 8%-10% to the HPS.
4.Build-in cooling system,could solve the heat dissipation excellently.
5.Built-in power supply, CE approved, No setup required, just simpler and safer plugs directly into AC85V-264V, no reflector & ballast needed.
Application
1. coral reef lighting,fish tank lighting,coral reef tank lighting
2. Aquarium Lighting ,aquarium art,aquarium shop,aquarim centre
3. fish bowl lighting,fish lighting,freshwater lighting,saltwater lighting
Item Display
Package Include
1 X Free Hanging Kit
1X Free Power Cord
All the lamps have passed strict quality examination and are packed carefully before shipping.In order that our customers get high quality lamps,we attach importance to every details.
Company Info
Philizon Lighting is dedicated to provide high quality and durable lighting product for customer with very competitive price.Our products mainly foucs on Led Grow Lights and Led Aquarium Light.The equipment and materials to produce Hydroponics Led Grow Light and LED Aquarium Light fixctures imported from Taiwan, Japan, Korea and Unites States, such as automatic SMT machine, reflowsoldering machine,all kinds of electric test equipment, large integrating sphere and such sorts of productionand R&D equipment.
Trade Terms
Payment: T/T, L/C, Paypal, 30% deposits before production, 70% balance to be paid before deliverying(Western Union are welcome)
Sample will be delivered within 7 working days.
Discounts are offered based on order quanlityes.
MOQ:sample order are acceptable
Delivery ways:DHL,UPS,FedEx,TNT, door to door,by sea,by air,etc.
Warmly welcom to take a visit on our factory at any time and we will pick you up at the airport or hotel in Shenzhen.
LED Aquarium Light Aquarium Plant Led,Led Aquarium Plant Light,Led Aquarium Light,Aquarium Led Fish Shenzhen Phlizon Technology Co.,Ltd. , https://www.philizon.com
