ADI Home
Dolby Intelligent Mixer (eMix)

Dolby Intelligent Mixer (eMix)

Product
Details
System Requirements
Related Software
Related Hardware
Performance Metrics

Product Details

Dolby Intelligent Mixer 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 regards 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.

Features

Output Status: Number of output channels, number of output samples per channel, sample rate and mixer delay
API: C callable 'Push' API
Error Codes: Reports up to 3 unique error codes
Code compatible across all ADSP-2136x and ADSP-214xx SHARC processors
Compliance: Dolby specified compliance criteria
Reference Code Revision: Dolby Intelligent Mixer Simulation version 1.0.1
Target Processor: Optimised for SHARC Processor Architecture ADSP-2136x and ADSP-214xx
Certification: ADSP-21362/3/4/5/6, ADSP-21367/8/9, ADSP-21462/5/7/9, ADSP-21471/2/5/8/9, ADSP-21481/2/3/5/6/7/8/9
Framework Dependencies: None
Release Format: Object Code with source code wrapper
Input format: 32-bit floating point (range -1.0 to 1.0). Input PCM has to be provided in separate buffers for each channel
Output format: Single channel 32-bit floating point.
Input and Output buffer samples per block: 256 samples
Sample Rate: All sampling rates specified by Dolby (44.1 kHz, 48 kHz)
Multi-channel: Fully re-entrant and multi-instancing capable

Product Downloads

System Requirements

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.

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.

Related Software

VisualDSP++ 5.0 and Latest Update

Related Hardware

Processor: ADSP-21469

Hardware: Evaluation board/Evaluation version of VisualDSP++

ADSP-21469 EZ-KIT Lite®

Performance Metrics

MIPS summary:

SHARC Processor Family	Code RAM (KiB)	Data RAM (KiB)	Constant Data Tables (KiB)	MIPS
SHARC Processor Family	Code RAM (KiB)	Data RAM (KiB)	Constant Data Tables (KiB)	Average	Average Peak
ADSP-2136x	17.2	43.1	13.3	20.5	20.5
ADSP-2134x	12.5	43.1	13.3	20.8	20.8

MIPS measured using Fs = 48 kHz, optimal memory layout, worst case test vector.
"Data RAM" for one instance, includes Stack, Scratch, Instance/State, minimum input and output single buffers
Input buffer size is 2 KiB and output buffer size is 1 KiB
Frame size is 256 samples per channel
1 KiB = 1024 bytes

EngineerZone Support Community: Latest Software Modules, Starter Kits and Software Development Kits

Availability and Licensing

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.