This version (04 Feb 2021 05:39) was approved by Sanjeeva Reddy.The Previously approved version (19 Mar 2018 10:33) is available.
Table of Contents
Wav Player
Click here to return to the Sources section.
This module can be used to read PCM/WAV files from internal memory of ADAU145x. This module also provides playback controls as Play/Pause, Stop and Loopback.This module also can perform pitch shifting while playing the file.
The following list shows the various audio files supported by this module.
- Audio Samples in 8.24 Fixed point format (Mono)
- Wav file with out header (PCM) (Mono)
- 8 Bits per Sample (Signed Integer)
- 16 Bits per Sample (Signed Integer)
- 24 Bits per Sample (Signed Integer)
- 32 Bits per Sample (Signed Integer)
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: WavPlayer OutPut | decimal - audio | Audio Sample |
Grow Algorithm
The module currently does not support grow/add functionality.
Configurations
Click on the image 
to open the Wav Player Properties Window.
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Audio File Format | Audio Sample in 8.24 | Wav without header (PCM)/Audio Sample in 8.24 format | Selection of audio file format |
| Bits Per Sample | 32 | 8/16/24/32 | Bits per sample in the audio file Load. |
| Sample to Start | 0 | 0 - number of samples in file | To allow phase shift. |
| File Type | ASCII | ASCII/Binary | To select text file or PCM file. |
Note: The size of the file shall not exceed the (Maximum DM0 Memory(20kb) - Available DM0 Memory).
Any change in these configuration parameters requires a recompilation.
DSP Parameter Information
| GUI Control Name | Compiler Name | Function Description |
|---|---|---|
| ForwardPlay | WavPlayerInternalAlg1ForwardPlay | To Play or Pause the Audio |
| Loopback | WavPlayerInternalAlg1Loopback | To Enable/Disable Loopback |
| PitchScalingFactor | WavPlayerInternalAlg1PitchScalingFactor_Hi | To provide pitch shifting |
| PitchScalingFactor | WavPlayerInternalAlg1PitchScalingFactor_Lo | To provide pitch shifting |
| PitchScalingCounter | WavPlayerInternalAlg1PitchScalingCounter_Hi | To provide phase shift |
| PitchScalingCounter | WavPlayerInternalAlg1PitchScalingCounter_Lo | To provide phase shift |
Here,
- Green - Algorithm Name
- Red - Instance Number (Changes for each instance)
- Blue - Parameter Name
Supported ICs
- ADAU145x
resources/tools-software/sigmastudio/toolbox/sources/wavplayer.txt · Last modified: 26 Jun 2019 11:54 by Sanjeeva Reddy