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| resources:tools-software:sigmastudio:toolbox:adialgorithms:automaticspeakereq [16 Jan 2020 17:29] – Added link to page describing the MLSSA file format KenM | resources:tools-software:sigmastudio:toolbox:adialgorithms:automaticspeakereq [27 Jan 2020 21:29] (current) – Minor clarifications and formatting Joshua Berlin | ||
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| - | ===Input Pins=== | + | ====Input Pins==== |
| ^Name^Format [int/dec] - [control/ | ^Name^Format [int/dec] - [control/ | ||
| |Pin 0: Audio In|decimal - audio|Audio Input| | |Pin 0: Audio In|decimal - audio|Audio Input| | ||
| - | ===Output Pins=== | + | ====Output Pins==== |
| One Speaker System | One Speaker System | ||
| ^Name^Format [int/dec] - [control/ | ^Name^Format [int/dec] - [control/ | ||
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| |Pin 2: Audio Out, High Band|decimal - audio|Auto filtered audio output, high band| | |Pin 2: Audio Out, High Band|decimal - audio|Auto filtered audio output, high band| | ||
| - | ===Algorithm Description=== | + | =====Algorithm Description===== |
| The Automatic Speaker EQ is located in the ADI Algorithms section of the SigmaStudio Toolbox. Once included in the project, it is necessary to choose the proper algorithm for the current design. The Automatic Speaker EQ supports up to three-way speaker designs. | The Automatic Speaker EQ is located in the ADI Algorithms section of the SigmaStudio Toolbox. Once included in the project, it is necessary to choose the proper algorithm for the current design. The Automatic Speaker EQ supports up to three-way speaker designs. | ||
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| - | ===Source Tab=== | + | =====Source Tab===== |
| When first opening the control, the source tab will be visible. This is where the response(s) of the desired speakers are loaded. Compatible formats include Impulse Responses with one measurement per line and Frequency responses in the [[resources: | When first opening the control, the source tab will be visible. This is where the response(s) of the desired speakers are loaded. Compatible formats include Impulse Responses with one measurement per line and Frequency responses in the [[resources: | ||
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| - | **Controls** | + | ====Controls==== |
| - **Impulse Response Radio Button** – Click this to use an Impulse Response Measurement as the speaker response. Disables the Frequency Response file import. | - **Impulse Response Radio Button** – Click this to use an Impulse Response Measurement as the speaker response. Disables the Frequency Response file import. | ||
| - | - **Frequency Response Radio Button** – Click this to use a Frequency Response Measurement as the speaker response. The [[resources: | + | - **Frequency Response Radio Button** – Click this to use a Frequency Response Measurement as the speaker response. The [[resources: |
| - | - Click to load Impulse Response | + | - **Click to load Impulse Response** |
| - | - Click to load Frequency Response | + | - **Click to load Frequency Response** |
| - **Impulse Response Graph** – The Impulse response will be displayed here. The blue curve represents the response. The red curve represents the window to be applied. Draggable points will appear to control the window start/ | - **Impulse Response Graph** – The Impulse response will be displayed here. The blue curve represents the response. The red curve represents the window to be applied. Draggable points will appear to control the window start/ | ||
| - **dB Scale Checkbox** – Click this to toggle a dB/linear scale in the y-axis. | - **dB Scale Checkbox** – Click this to toggle a dB/linear scale in the y-axis. | ||
| - **Window Control Knobs** – These control the window start and length. Changes made via these knobs get reflected to the drag points on the Impulse Response graph. | - **Window Control Knobs** – These control the window start and length. Changes made via these knobs get reflected to the drag points on the Impulse Response graph. | ||
| - **Apply Windowing Checkbox** – This allows the user to turn off the window and use the entire impulse response measurement. | - **Apply Windowing Checkbox** – This allows the user to turn off the window and use the entire impulse response measurement. | ||
| - | - **Frequency Response Graph** – The frequency response, whether from a file or calculated from the impulse response, will be displayed here. | + | - **Frequency Response Graph** – The frequency response, whether from a file or calculated from the impulse response, will be displayed here. This is the raw frequency response of the speaker, before the Auto EQ has been calculated or applied. |
| - **Offset Gain Control** – Allows the user to change the level of the frequency response. | - **Offset Gain Control** – Allows the user to change the level of the frequency response. | ||
| - **Smoothing Control** – Changes the smoothing of the frequency response that is calculated from the impulse response. | - **Smoothing Control** – Changes the smoothing of the frequency response that is calculated from the impulse response. | ||
| - | ===Target Response Tab=== | + | =====Target Response Tab===== |
| - | The next control | + | The next tab provides tools to allow the user to design the desired target response for each transducer. |
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| {{ AutoEQ4.png }} | {{ AutoEQ4.png }} | ||
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| - | **Controls** | + | ====Controls==== |
| - **Design Controls** | - **Design Controls** | ||
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| - **Combined Target Response Graph** – This graph shows exactly which part of each speaker the algorithm is going to design for. In multiband designs, this graph will have different colored sections for each speaker. | - **Combined Target Response Graph** – This graph shows exactly which part of each speaker the algorithm is going to design for. In multiband designs, this graph will have different colored sections for each speaker. | ||
| - | ===Design Settings Tab=== | + | =====Design Settings Tab===== |
| This tab provides controls to customize the operation of the Automatic Speaker EQ algorithm. | This tab provides controls to customize the operation of the Automatic Speaker EQ algorithm. | ||
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| - | **Controls** | + | ====Controls==== |
| - **Show Advanced Settings** – Displays the technical settings of the Automatic Speaker EQ algorithm. For information about Advanced Settings, see the Appendix. | - **Show Advanced Settings** – Displays the technical settings of the Automatic Speaker EQ algorithm. For information about Advanced Settings, see the Appendix. | ||
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| - **Design All Button** – This will initiate the Automatic Speaker EQ algorithm for all speakers. | - **Design All Button** – This will initiate the Automatic Speaker EQ algorithm for all speakers. | ||
| - | ===Filter Tabs=== | + | =====Filter Tabs===== |
| After running the Automatic Speaker EQ algorithm, the Filters tab is automatically displayed. The Filters tab shows the results of the algorithm and allows the user to change the values of the filters as desired. The control is the same as the Parametric EQ included in Sigma Studio. | After running the Automatic Speaker EQ algorithm, the Filters tab is automatically displayed. The Filters tab shows the results of the algorithm and allows the user to change the values of the filters as desired. The control is the same as the Parametric EQ included in Sigma Studio. | ||
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| - | **Controls** | + | ====Controls==== |
| - **Graph Controls** – These control the x and y axis zoom, as well as allow the user to add and remove filters. | - **Graph Controls** – These control the x and y axis zoom, as well as allow the user to add and remove filters. | ||
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| - **Export Results Button** – Exports the filter coefficients in a text file to be used with the General 2nd order EQ filter included with Sigma Studio. | - **Export Results Button** – Exports the filter coefficients in a text file to be used with the General 2nd order EQ filter included with Sigma Studio. | ||
| - | ===Multiband Controls=== | + | =====Multiband Controls===== |
| The multiband versions of the Automatic Speaker EQ algorithm contain two extra tabs to aid in designing a crossover for the system. | The multiband versions of the Automatic Speaker EQ algorithm contain two extra tabs to aid in designing a crossover for the system. | ||
| - | ===Crossover Tab=== | + | =====Crossover Tab===== |
| The crossover tab is the same as the crossover control included in Sigma Studio. The initial crossover points are set at the cutoff frequencies defined on the Target Tab. The user is then free to edit them as needed. | The crossover tab is the same as the crossover control included in Sigma Studio. The initial crossover points are set at the cutoff frequencies defined on the Target Tab. The user is then free to edit them as needed. | ||
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| - | **Controls** | + | ====Controls==== |
| - **Crossover Graph** – This is the graphical display of the crossover response. There are two lines per band – the response of the filter and the response of the speaker after the filter is applied. | - **Crossover Graph** – This is the graphical display of the crossover response. There are two lines per band – the response of the filter and the response of the speaker after the filter is applied. | ||
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| - **Link Enable** – Link the frequencies of the two crossover filters. | - **Link Enable** – Link the frequencies of the two crossover filters. | ||
| - | ===Crossover Tab Alignment=== | + | =====Crossover Tab Alignment===== |
| Because the Automatic Speaker EQ uses IIR filters, the phase of the signal is affected. This creates a need to align the crossover filters to prevent unwanted cancellation due to phase irregularities. The alignment tab will help fix any phase-related cancellation and allow the user to fine-tune the system. | Because the Automatic Speaker EQ uses IIR filters, the phase of the signal is affected. This creates a need to align the crossover filters to prevent unwanted cancellation due to phase irregularities. The alignment tab will help fix any phase-related cancellation and allow the user to fine-tune the system. | ||
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| - | **Controls** | + | ====Controls==== |
| - **Alignment Controls** – These add delay/gain to the currently selected speaker. Results are updated in real time on all graphs. | - **Alignment Controls** – These add delay/gain to the currently selected speaker. Results are updated in real time on all graphs. | ||
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| - **Total Magnitude/ | - **Total Magnitude/ | ||
| - | ===Filter Initialization/ | + | =====Filter Initialization/ |
| The dialogs for defining a target from filters and for initializing filters are the same. | The dialogs for defining a target from filters and for initializing filters are the same. | ||
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| </ | </ | ||
| - | ===Advanced Settings=== | + | =====Advanced Settings===== |
| The advanced settings are located on the Design Settings tab. They are hidden by default, but pushing the “Show Advanced Settings” button will make them appear. | The advanced settings are located on the Design Settings tab. They are hidden by default, but pushing the “Show Advanced Settings” button will make them appear. | ||
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| * **Gain Min/Max** – The smallest/ | * **Gain Min/Max** – The smallest/ | ||
| - | ===Menu Bar=== | + | =====Menu Bar===== |
| The menu on the Automatic Speaker EQ has some advanced functions associated with it. Under File, there are controls to load/save configurations. The Design menu has functions to import/ | The menu on the Automatic Speaker EQ has some advanced functions associated with it. Under File, there are controls to load/save configurations. The Design menu has functions to import/ | ||
resources/tools-software/sigmastudio/toolbox/adialgorithms/automaticspeakereq.txt · Last modified: 27 Jan 2020 21:29 by Joshua Berlin