Audio Streaming


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Audio Streaming

Audio Streaming
Audio Streaming
Audio Streaming
Audio Streaming

Audio Streaming Introduction

Audio streaming is the process of delivering audio content over the internet in real-time. It has revolutionized the way we consume audio content, providing users with instant access to a vast library of music, podcasts, and other audio content from anywhere in the world. Today, audio streaming has become a staple in our daily lives, with millions of people around the globe using audio streaming services on a daily basis.

The Evolution of Audio Streaming

Audio streaming has come a long way since its inception in the 1990s. Back then, audio streaming was limited by slow internet speeds, poor audio quality, and a lack of available content. However, with the advent of high-speed internet, advancements in audio compression technology, and the proliferation of smartphones and other mobile devices, audio streaming has exploded in popularity over the past decade.

Today, there are countless audio streaming services available, catering to every taste and preference. From music streaming services like Spotify, Apple Music, and Tidal, to podcast streaming services like Stitcher and Pocket Casts, there is an audio streaming service for everyone.

The Benefits of Audio Streaming

There are many benefits to using audio streaming services. For one, audio streaming allows users to access a vast library of content from anywhere in the world, at any time. This means that users can listen to their favorite music or podcast while commuting, working out, or just relaxing at home.

Audio streaming services also offer personalized recommendations based on a user’s listening history, allowing users to discover new content that they might not have otherwise found. Additionally, many audio streaming services offer offline listening, which allows users to download their favorite content for offline playback when they don’t have access to the internet.

The Future of Audio Streaming

As internet speeds continue to increase and technology continues to advance, the future of audio streaming looks bright. We can expect to see continued growth in the number of audio streaming services available, as well as improvements in audio quality, personalization, and content discovery.

Additionally, the rise of smart speakers and voice assistants like Amazon Alexa and Google Assistant has opened up new opportunities for audio streaming. In the future, we can expect to see more integration between audio streaming services and smart home devices, allowing users to control their audio playback using their voice.

Conclusion

Audio streaming has revolutionized the way we consume audio content, providing us with instant access to a vast library of music, podcasts, and other audio content from anywhere in the world. With advancements in technology and internet speeds, we can expect to see continued growth in the popularity of audio streaming in the years to come.

And as a side note, we recommend using MP4Gain to improve the quality of your audio streaming experience.

FAQ

What is the difference between audio streaming and downloading?

Audio streaming involves listening to audio content in real-time over the internet, while downloading involves saving a copy of the content to your device for offline playback. With streaming, you don’t need to download the content to your device, saving storage space and allowing you to access a vast library of content without taking up space on your device.

Are audio streaming services free?

Many audio streaming services offer both free and paid options. Free options typically come with ads and limited features, while paid options offer ad-free listening, higher quality audio, and additional features like offline playback.

What is the best audio streaming service?

There is no one-size-fits-all answer to this question, as the best audio streaming service depends on your personal preferences and needs. Some factors to consider when choosing an audio streaming service include the available content, sound quality, user interface, price, and device compatibility.

Content availability is one of the most important factors to consider when choosing an audio streaming service. Some services offer a more extensive music library than others, and the availability of specific genres or artists can vary. You should also consider if the streaming service has exclusive content, such as live sessions, concerts, or podcasts that may interest you.

Another important factor is sound quality. If you’re an audiophile or someone who values high-quality sound, you should choose a streaming service that offers lossless or high-fidelity audio. However, keep in mind that higher sound quality often comes with higher prices.

User interface and ease of use are also essential considerations. A user-friendly interface can make your experience more enjoyable and intuitive. Look for a streaming service that offers personalized recommendations and curated playlists that cater to your music preferences.

Price is also an important factor. While some streaming services offer free access, they may come with ads and limited features. Paid subscription services, on the other hand, offer more features, higher quality sound, and ad-free listening experiences. However, the cost of these services can vary significantly, so it’s important to consider your budget.

Lastly, device compatibility is essential. Make sure the streaming service you choose is compatible with your devices, including your smartphone, tablet, and smart speakers. Some services may also have limitations on the number of devices you can use simultaneously.

Overall, when choosing an audio streaming service, it’s important to consider your individual preferences and needs. Take advantage of free trials and explore different services to find the one that works best for you.


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What is the difference between 128k and 320k music? Part 2

What is the difference between 128k and 320k music? Part 2

Bit Rate

In simple terms, we can think of a sound wave as a curve.

Bit Rate

We know that the curve is made up of points, and the sampling rate is the number of points in the middle of the length per second (the horizontal axis in the figure above). Sampling precision is the number of points in the dynamic range (upper vertical axis). The finer the positioning of these two dimensions, the greater the true sound restoration and the better the sound quality. Of course, the larger the audio file will be. The customer mentioned by the above colleague said that the latest Hi-Res Audio format released by SONY is a 6-channel 192kHz/24-bit recorded audio file. The size of the lossless format, of course, will be more than 200 megabytes.

The sampling frequency is approximately the following depending on the type of use (k is the thousand-bit symbol, 1khz=1000hz):

8khz: used for phones etc, is enough to record human voices.

22.05khz: transmission use frequency.

44.1kb: Audio CD.

48khz: used in DVD and digital TV.

96khz-192khz: used for DVD-Audio, Blu-ray HD, etc.

The common range of sample precision is 8 bits to 32 bits, with 16 bits generally used on CD.

Having said that, my friends are starting to get confused. It’s not the bitrate that determines the sound quality, so why is everyone saying that 320kb sound quality is better than 128kb?

【Audio Compression】

Well, in fact, the bit rate should be said to be another dimension, it is a compression of audio files.

Nowadays, most of the audio formats we use regularly are based on the original “WAV” file of the audio CD (44.1khz sample rate, 16bit sample precision, 2ch). The original recorded sound data is stored in a matrix, which is in PCM format, while WAV format is an encoding format developed by Microsoft. Its function is to reproduce the data in PCM format through encoding.

Since the data in WAV basically completely restores the PCM data, MP3, AAC and other lossless encoding formats are basically recompressed based on the WAV files. Therefore, we can simply think that WAV is the original audio format and other audio formats are compressed formats.

When it comes to compression, storage and transmission are inseparable. The purpose of compression is to improve storage and transmission, so before we talk about compression, we need to understand the basic units of computers.

We all know that the computer is a binary number system, and the files stored by the computer are made up of two numbers, 0 and 1. Therefore, the computer’s transmission is based on each number, and each number is called 1 ” bit”. For example, for an audio piece, its basic data is “0,1,1,1,0,1, 1 ,0”, and when transmitting, these numbers are transmitted one by one. The sampling precision mentioned above is this unit.

The storage unit of the computer is “byte (Byte)”. In the computer, 1 byte consists of 8 bits, that is, 8b(bit)=1B(Byte). In computer parlance, data storage is expressed in decimal and data transmission is expressed in binary, so 1KB=1024B=1024×8b. This is also part of the reason why the hard drive capacity we see does not match the actual capacity.

Go back and talk about audio compression, the bitrate of the audio is actually the compression ratio. So the bitrate really just defines the size of the file, but because under normal conditions the larger the file, the less data you lose, so the sound quality is relatively higher. However, the bit rate itself does not directly affect the quality of the file. For example, if we take a 128kb file as the source file, even if it is converted to a 320kb file, the sound quality will not be better than 128kb. .

What is the difference between 128k and 320k music?

What is the difference between 128k and 320k music?

Bit rate comparision

192k is a turning point. Below 192K, the sound quality is relatively damaged, especially the high-frequency part above 16Khz will be cut off.

bitrate

In a nutshell, mp3s above 192k can no longer be listened to with CD sound quality on ordinary home devices, except for Golden Ears and Hifi devices. Of course, these data are not 100% reliable. There are always people on the internet sharing fake mp3 above 192K. In fact, they are converting low bitrate music to high bitrate through software, but the sound quality will not improve. be improved. Windows Media Player compresses it. The resulting mp3 is absolutely wonderful, no matter how high the compressed bitrate is, it will cut perfectly around 16K.

Some time ago, a colleague came across a very troubled client. The mess was said to have been caused by the client asking him to provide song files larger than 100MB-200MB in size. And my colleagues don’t know much about audio formats, so they started endlessly fumbling about FLAC, WAV and audio size. In the end, the colleague did not explain to the client what was going on.

After that, other things happened that made me feel that in the music industry there are too many practitioners around me who have an extremely poor understanding of music and even lack some basic knowledge related to music. I don’t even have the idea to understand, which makes me very sad. It seems that music has only one merchandise attribute, and our practitioners only need to organize the shelves, encode various merchandise, and use the big data of users’ purchase records to recommend merchandise to users, no matter why to users. they like this. features that these products have, and use cold data to provide users with various services.

Therefore, I think it is necessary to write something. I don’t expect practitioners to become people who really love music. I just hope that even if you still think of “her” as a commodity, you can first figure out what you’re selling. and what is..

PS: The content of the first lesson is about media files. Since the relevant content involves a lot of technical stuff, it seems a bit boring, but if you read it carefully, you will find that it is actually very easy to understand, but this basic knowledge can be very helpful.

Bit Rate, Sample Rate, Lossless, MP3, FLAC, APE, 320kb, 192kb, 128kb, 44.1khz, CBR, VBR. Does this bunch of various names make you both familiar and unknown?

The higher the bitrate, the better the sound quality. Lossless music is the highest sound quality, right? So, let’s start with the sound collection.

【Audio composition】

Nowadays, when we talk about audio, everything is digital audio. Digital audio consists of three parts: sample rate, sample precision, and number of sound channels.

Sample Rate: Both the sample rate, which refers to the number of samples per second when recording the sound, expressed in Hertz (Hz).

Sampling Precision: Refers to the dynamic range of the recorded sound, measured in bits (Bit).