TLV320AIC33IRGZTG4 vs WM8351CGEB/RV
| Part Number |
|
|
| Category | Interface - CODECs | Interface - CODECs |
| Manufacturer | Texas Instruments | Cirrus Logic Inc. |
| Description | IC STEREO AUDIO CODEC 48-VQFN | IC CODEC 48KHZ 129FBGA |
| Package | -Reel® | Tube |
| Series | - | - |
| Type | Stereo Audio | Stereo Audio |
| Operating Temperature | -40°C ~ 85°C | -25°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 48-VFQFN Exposed Pad | 129-TFBGA |
| Supplier Device Package | 48-VQFN (7x7) | 129-BGA (7x7) |
| Resolution (Bits) | 24 b | 12 b |
| Data Interface | I²C, Serial, SPI™ | - |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.5V ~ 3.6V |
| Voltage - Supply, Digital | 1.65V ~ 1.95V | 1.71V ~ 3.6V |
| Number of ADCs / DACs | 2 / 2 | 2 / 2 |
| Sigma Delta | Yes | Yes |
| S/N Ratio, ADCs / DACs (db) Typ | 92 / 100 | 95 / 95 |
| Dynamic Range, ADCs / DACs (db) Typ | 92 / 100 | - |
-
1. What are audio codecs used for?
Audio codecs are mainly used to compress and decompress digital audio data for easy storage and transmission. During the compression process, the codec removes redundant information from the audio to reduce the amount of data; during decompression, this information is restored to restore the original audio quality.
How Audio Codecs Work
The audio codec consists of two parts: encoding and decoding:
Coding: compressing the original audio signal into a smaller amount of data for easy storage and transmission. Compression methods include lossless compression (such as APE, FLAC) and lossy compression (such as MP3, AAC). Although lossy compression will lose some audio details, it can significantly reduce the file size.
Decoding: Restore the compressed audio data to the original audio signal to ensure that the sound quality is not damaged or the loss is minimized. -
2. How many codecs are there?
There are many types of codecs, and it is difficult to count their exact number. Codecs are mainly divided into the following categories:
Video codecs: such as H.264, H.265 (HEVC), VP8, VP9, AV1, etc., used for compression and decompression of video data.
Audio codec: such as MP3, AAC, Opus, FLAC, etc., used for compression and decompression of audio data.
Image codecs: such as JPEG, PNG, WebP, etc., used for compression and decompression of static images.
In addition, there are some codecs designed for specific application scenarios, such as ProRes, DNxHD, etc. -
3. What is the best audio codec?
The best audio codec can be considered from the following aspects:
Decoding capability: The decoder needs to support high-quality audio formats, such as DTS, Dolby Digital, MQA, DSD, etc. These formats can provide more realistic and delicate sound quality.
For example, the Kaiboer A5 decoder supports high-resolution audio processing capabilities of DSD512 and PCM 768KHz@32Bit, and can easily restore the best effects of various sound source files.
Input and output interfaces: The type and number of interfaces of the decoder are also important. Common interfaces include optical fiber, coaxial, USB, HDMI and Bluetooth. Support multiple interfaces to meet the connection requirements of different audio source devices.
For example, the PXBTR-Q6 Pro decoder supports multiple interfaces such as Bluetooth, optical fiber, coaxial, USB and SD card, allowing users to switch audio sources at any time.
Sound quality and stability: The signal-to-noise ratio and distortion of the decoder are important indicators of sound quality. A higher signal-to-noise ratio provides clear audio signals, while low distortion means more realistic sound reproduction. For example, the Ayin HD815 PRO decoder supports multiple audio formats such as DTS HD, AC3, Dolby Atmos, etc., can bring clear 5.1 surround sound, and has a built-in high-performance RTOS operating system to ensure pure sound quality. -
4. What are audio codecs used for?
Audio codecs play a vital role in audio transmission and processing. Their main functions include compressing and encoding audio data for efficient transmission and storage with minimal loss of sound quality.
Basic functions of audio codec
Compression and decompression: Codecs compress audio data into smaller file sizes for easier storage and transmission. The receiving end then decompresses the compressed data and restores the original audio quality.
Encoding and decoding: The codec converts the analog audio signal into a digital signal (encoding), and then converts the digital signal back into an analog signal (decoding) at the receiving end so that the playback device can process and output the sound.
Performance differences between different codecs and their impact on sound quality
SB: The most basic codec, supports 16-bit/44KHz audio, and has a maximum bit rate of 328kbps. Although it has a high penetration rate, the sound quality is relatively average.
AAC: A codec developed by Apple that supports higher bit rates and better sound quality and is commonly used in devices such as iPhones and iPads.
AptX: A codec developed by Qualcomm that supports high-fidelity audio transmission and is suitable for devices that require high-quality audio.
LDAC: A codec developed by Sony that supports transfer rates up to 990kbps, provides near lossless sound quality, and is commonly used in Sony devices.
LHDC: A high-performance codec that supports 24-bit/192KHz high-definition audio transmission with a maximum bit rate of 1Mbps, providing an excellent sound quality experience.
