Dolby TrueHD 解码器(Blackfin)
针对SHARC处理器的Dolby TrueHD解码器库是一种无损音频编码技术，专门针对高清光盘介质，以及其它要求节目回放精度能逐位还原原始演出的应用。
详情介绍
概述
优势和特点
- Target Processor: Code compatible across the SHARC processor Family ADSP-2136x, ADSP-214xx & ADSP-215xx/SC5xx
- Release format: Object code module with C source wrapper
- Input format: Non-interleaved multichannel 32-bit floating point PCM audio samples
- Input buffer samples per block: 256 samples per channel
- Framework dependencies: None
- Output format: Non-interleaved multichannel 32-bit floating point PCM audio samples
- Sample Rate: 44.1kHZ and 48kHz
- Number of input channels: stereo
- Number of output channels: single down-mixed channel
- Multi-threading: Fully re-entrant and multi-instancing capable
- Dolby certified on ADSP-21362/3/4/5/6, ADSP-21367/8/9, ADSP-21462/5/7/9, ADSP-21471/2/5/7/8/9, ADSP-21481/2/3/5/6/7/8/9, ADSP-21583/4/7 & ADSP-SC582/3/4/7/9 processors
产品详情
Dolby Intelligent Mixer (eMix) is a sub component of the Dolby Car Audio system. The Dolby Car Audio system is aimed at automotive listening experience which takes into consideration the positions and directionality of the listener with respect to the available speaker sets. The Dolby Intelligent mixer is aimed at intelligent down-mixing of the two source input channels without losing any significant information due to cross-correlation happening during normal down-mix.
许可
Each module supports the Analog Devices, Inc. (ADI) Blackfin or SHARC Processor family and is a licensed product that is available in object code format. Recipients must sign or accept a license agreement with ADI prior to being shipped or downloading the modules identified in the license agreement.
性能指标
MIPS summary:
| Processor Family | Code RAM (KiB) | Data RAM (KiB) | Constant Tables (KiB) | MIP | |
| Average | Peak | ||||
| ADSP-2136x | 14.9 | 45.7 | 13.3 | 16.97 | 16.98 |
| ADSP-214xx | 11.2 | 17.38 | 17.39 | ||
| ADSP-215xx/SC5xx | 11.2 | 13.1 | 24.90 | 24.92 | |
- MIPS measured using Fs=48 kHz, optimal memory layout, worst case test vector.
- “Data RAM” for one instance, includes Stack, Scratch, Instance/Stage, Minimum Input and Output Single Buffers.
- The Peak MIPS is an Averaged Peak MIPS. It is based on a 4 frame moving average normalised over one second period.
- 1 KiB = 1024 Bytes.
- The Dolby Intelligent Mixer library was built using CrossCore® Embedded Studio 2.1.0
系统要求
- Windows XP Professional SP3 (32-bit only).
- Windows Vista Business/Enterprise/Ultimate SP2 (32-bit only). It is recommended to install the software in a non-UAC-protected location.
- Windows 7 Professional/Enterprise/Ultimate (32 and 64-bit). It is recommended to install the software in a non-UAC-protected location.
- Windows 8 Professional/Enterprise (32 and 64-bit). It is recommended to install the software in a non-UAC-protected location.
- Minimum of 2 GHz single core processor, 3.3 GHz dual core is recommended.
- Minimum of 1 GB memory (RAM), 4 GB is recommended.
- Minimum of 2 GB hard disk (HDD) space is required.
- CrossCore® Embedded Studio for Analog Devices Processors Rel 1.0.1 or later.