Audio

A Flourish template for playing and embedding audio files

Updated 17 days ago to v2.0.0 by Flourish team

This section documents API usage specific to this template, so for an introduction we suggest you refer to the generic API documentation instead.

template: @flourish/audio

version: 2

Template data

There are three different formats in which you can supply data to this template. The most convenient for you to use likely depends on the source of your data, as described below.

1. Array of arrays, and a bindings object

You can supply arrays of arrays to opts.data, which might look like:

{
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

where each array of arrays represents the rows in a data sheet.

To tell the API how the values from each column should be associated with the keys that the template is expecting, you must also supply an object attached to opts.bindings. (The meanings of the keys in the bindings object are documented below.) The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/audio",
    version: "2",
    bindings: {
        data: {
            url: 0, // index of a column in your data
        }
    },
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/audio",
    version: "2",
    bindings: {
        data: {
            url: 0, // index of a column in your data
            title: 1, // index of a column in your data
            subtitle: 2, // index of a column in your data
            filter: 3, // index of a column in your data
        }
    },
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

2. Array of objects with arbitrary keys, and a bindings object

This format is most likely useful when you have data from an external source, such as CSV data loaded from d3-dsv. You should supply this attached to the opts.data, which might look like:

{
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }

... but with the keys being the column headers from your source data instead. You must also supply an object attached to opts.bindings. The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/audio",
    version: "2",
    bindings: {
        data: {
            url: "DataHeader1",
        }
    },
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/audio",
    version: "2",
    bindings: {
        data: {
            url: "DataHeader1",
            title: "DataHeader2",
            subtitle: "DataHeader3",
            filter: "DataHeader4",
        }
    },
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }
}

(As before, the keys containing "Header" would be replaced by column names from your data source.)

3. Array of objects with template-defined keys

There is an alternative format you can use, which is likely to be easier to use if your data is not from a spreadsheet source. With this alternative format you supply your data to the template as an array of objects, attached to opts.data, where the keys must be those used by the template, as documented below. In this case there is no need to supply a bindings object, since the key names are already those expected by the template. The required properties in the data object are as follows (scroll down for a description of what each property is):

{
    template: "@flourish/audio",
    version: "2",
    data: {
    data: [
        {
            url: ...
        },
        ...
    ]
},
    ...
}

And the full list of all possible properties is as follows:

{
    template: "@flourish/audio",
    version: "2",
    data: {
    data: [
        {
            url: ...,
            title: ...,
            subtitle: ...,
            filter: ...
        },
        ...
    ]
},
    ...
}

Meanings of the template data keys:

  • data.url: The URL of a publicly readable MP3 file string
  • data.title: title string
  • data.subtitle: subtitle string
  • data.filter: filter string, number

Template metadata

Note: metadata is optional, and the API will interpret your data for you if you do not specify it. A typical example of when specifying metadata can be useful is when column(s) in your data contain numbers or dates that you wish to format visually (e.g. to display a column containing MM/DD/YYYY dates in DD/MM/YYYY format).

This template supports an optional metadata property. metadata informs the template what type of data is in each of your columns, and how that data should be formatted visually.

You can specify metadata in one of three formats, depending on the format of opts.data.

1. Array of objects with column indexes as keys

You should supply metadata in this format when opts.data is in the previously described 'array of arrays' format. In this case, metadata should be an object with column index: column type object key/value pairs (column type objects must have type, type_id, and output_format_id keys, documented below):

{
    template: "@flourish/audio",
    version: "2",
    ...
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    },
    metadata: {
        data: {
            0: { type: ..., type_id: ..., output_format_id: ... },
            1: { type: ..., type_id: ..., output_format_id: ... },
            2: { type: ..., type_id: ..., output_format_id: ... },
        }
    },
    ...
}

2. Array of objects with column headers as keys

You should supply metadata in this format when opts.data is in the previously described 'array of objects with arbitrary keys' format. In this case, metadata should be an object with column header: column type object key/value pairs (column type objects must have type, type_id, and output_format_id keys, documented below):

{
    template: "@flourish/audio",
    version: "2",
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    },
    metadata: {
        data: {
            "DataHeader1": { type: ..., type_id: ..., output_format_id: ... },
            "DataHeader2": { type: ..., type_id: ..., output_format_id: ... },
            "DataHeader3": { type: ..., type_id: ..., output_format_id: ... },
        }
    },
    ...
}

Column type objects:

Column type objects tell the API what type of data is in a column:

{
    type: "number", // options also include 'string', and 'datetime'
    type_id: "number$comma_point", // numbers in the format 13,429.17
    output_format_id: "number$space_comma", // numbers in the format 13 429,17
}

For more information on valid column type values, see Recognized Type Formats.

Template settings

Options for opts.state.

Audio player

audio_player.button_color color

Background.

audio_player.button_icon_color color

Icons.

audio_player.button_size number

Size. In rems, a multiple of base font size

audio_player.button_roundness number

Roundness.

audio_player.progress_color color

Color.

audio_player.progress_bg_color color

Background.

audio_player.progress_height number

Height. In rems, a multiple of base font size

audio_player.progress_width number

Width (%).

audio_player.width number

Width. In rems, a multiple of base font size. Leave blank to fill the available space

audio_player.margin_top_bottom number

Space. Spacing above and below the player. In rems, a multiple of base font size.

audio_player.show_text_styling boolean

Show text styles.

audio_player.title_size number

Size.

audio_player.title_color color

Color.

audio_player.title_weight string

Weight.

Allowed values:

  • normal (Normal)
  • bold (Bold)

audio_player.subtitle_size number

Size.

audio_player.subtitle_color color

Color.

audio_player.subtitle_weight string

Weight.

Allowed values:

  • normal (Normal)
  • bold (Bold)

audio_player.time_size number

Size.

audio_player.time_color color

Color.

audio_player.time_weight string

Weight.

Allowed values:

  • normal (Normal)
  • bold (Bold)

Color. Where links are present (added by wrapping text in <a> tags in the datasheet) this setting changes their text color

Controls & filters

filter_control.control_type string

Control type. Choose between a dropdown, buttons or a time slider.

Allowed values:

  • dropdown (data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAC0AAAAKCAYAAAFXtOeCAAAABGdBTUEAALGPC/xhBQAAADhlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAAqACAAQAAAABAAAALaADAAQAAAABAAAACgAAAAAWgdR+AAAAtklEQVQ4EdVV3QnEIAw25TbSB2foNI7iMu0MbuUR4ZOQy4OFCL2AmN8vMQallNLVez+DosNSsg/FGLtyDkR0H1rJMqOMiJxz4KWp1jpUsLNsptCBkD/MlFIgzx3IsD9GflTGTLvImN1ajP1x043dVrlr1fIY4xZZYd2kdATfWgu8NCEedtdWcJ+R1BVYnmIbsEzizW8bDO9CJd4cOijxCEH22DGIq1iyBiv2P8eDP4jVDrzE7/oCOyRFCckULykAAAAASUVORK5CYII=)
  • buttons (data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACsAAAAKCAYAAAFaqpfFAAAABGdBTUEAALGPC/xhBQAAADhlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAAqACAAQAAAABAAAAK6ADAAQAAAABAAAACgAAAACxtWN2AAAA5klEQVQ4EdVUwQ2DMAwkqBuFBzO0y2QUlqEz5AEzpTrUiyzLEEPbRy2F2D7n4tgWYRiGuZRy75T0lhMxIcZYoKzrWvUeDi0VTSlt2DRN9dQ4jh0WBP4avHneH3kF/SGE5w0GWXPOHRaFfrDiEW5mEJjBZJY7UoPNakjM0s0KWYFnfa6MUbRlWR573daXurLlhHDXJNreugan7D2D0K09YUeJy467no+D1iyRUO+u5+tDLdudaYuIOEcQtncMeba1/6QCrUuv4nWwJIE1ZBKHLgdJY0f2J9z/NQb4cRxV4iQ2y/hvc78ACNVvxtjAMtcAAAAASUVORK5CYII=)

filter_control.control_styles boolean

Adv..

filter_control.control_title string

Control title.

filter_control.button_group boolean

Grouped.

Allowed values:

  • true (On)
  • false (Off)

filter_control.button_group_width_mode string

Button group width.

Allowed values:

  • auto (Auto)
  • full (Full)
  • fixed (Fixed)

filter_control.button_group_width_fixed number

Width.

Max: 100

filter_control.dropdown_width_mode string

Dropdown width.

Allowed values:

  • auto (Auto)
  • full (Full)
  • fixed (Fixed)

filter_control.dropdown_width_fixed number

Width.

Max: 100

filter_control.slider_width number

Slider width. Width of the slider track in rems

Max: 100

filter_control.slider_max_label_width number

Max label width. In rems, multiples of base font size. If larger than the longest label, only the space required to fit labels will be used.

Max: 100

filter_control.slider_step_time number

Time between steps. Measured in seconds, positive values move the slider left to right, negative values move the slider right to left.

Min: -100

Max: 100

filter_control.slider_loop boolean

Loop.

filter_control.slider_restart_pause number

Pause before loop. Measured in seconds and in addition to the regular step time displayed above

Max: 100

filter_control.sort boolean

Sorting.

Allowed values:

  • true (On)
  • false (Off)

controls_style.font_size number

Text size.

Max: 5

controls_style.font_weight string

Text weight.

Allowed values:

  • bold (Bold)
  • normal (Normal)

controls_style.height number

Height.

Max: 5

Background.

Text color.

Dropdown border styles.

Border style. Show border on all sides, or only at the bottom

Allowed values:

  • all (All sides)
  • bottom (Bottom)

Border width.

Max: 20

Color.

Transparency.

Max: 1

Radius.

Max: 100

button_style.background color

Background.

button_style.background_selected color

Selected.

button_style.background_hover color

Mouse over.

button_style.font_color color

Text color.

button_style.font_color_selected color

Selected.

button_style.font_color_hover color

Mouse over.

button_style.button_styles_advanced boolean

Button border styles.

button_style.border_width number

Border width.

Max: 20

button_style.border_color color

Color.

button_style.border_transparency number

Transparency.

Max: 1

button_style.border_radius number

Radius.

Max: 100

Layout

layout.body_font font

Main font. This font will apply to the whole graphic by default. You can optionally change the font for the title, subtitle, footer, etc in the Header and Footer settings panels.

layout.font_color color

Text color. This color will apply to the whole graphic by default, You can optionally change the color for individual text elements, in other settings panels.

layout.background_color_enabled boolean

Color.

Allowed values:

  • true (On)
  • false (Off)

layout.background_image_enabled boolean

Image.

Allowed values:

  • true (On)
  • false (Off)

layout.background_color color

Background color.

layout.background_image_src url

Image URL.

layout.background_image_size string

Size.

Allowed values:

  • cover (Fill)
  • contain (Fit)
  • auto (Original)
  • 100% 100% (Stretch)

layout.background_image_position string

Position.

Allowed values:

  • top left (Top left)
  • top center (Top center)
  • top right (Top right)
  • center left (Center left)
  • center center (Center)
  • center right (Center right)
  • bottom left (Bottom left)
  • bottom center (Bottom center)
  • bottom right (Bottom right)

layout.max_width_target string

Maximum width. Apply a maximum width to just the main graphic or everything (main graphic plus header, footer, etc).

Allowed values:

  • none (None)
  • wrapper (Everything)
  • primary (Main graphic)

layout.max_width number

Maximum width. Leave blank to stretch to container width

Min: 50

layout.max_width_align string

Align.

Allowed values:

  • left (fa-align-left)
  • center (fa-align-center)
  • right (fa-align-right)

layout.layout_order string

Layout order.

Allowed values:

  • stack-default (Header – controls – legend – primary graphic – footer)
  • stack-2 (Primary graphic – header – controls – legend – footer)
  • stack-3 (Header – primary graphic – controls – legend – footer)
  • stack-4 (Controls – primary graphic – header – legend – footer)
  • grid-1 (Grid mode: Primary graphic on the right)

layout.space_between_sections string

Space between sections.

Allowed values:

  • 0.5 (▁)
  • 1 (▃)
  • 1.5 (▄)
  • custom (...)

layout.space_between_sections_custom number

Custom.

Max: 100

layout.margin_top number

Top.

layout.margin_right number

Right.

layout.margin_bottom number

Bottom.

layout.margin_left number

Left.

layout.border.enabled boolean

Show borders around visualisation.

layout.border.top.width number

Top.

layout.border.top.style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.border.top.color color

Color.

layout.border.right.width number

Right.

layout.border.right.style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.border.right.color color

Color.

layout.border.bottom.width number

Bottom.

layout.border.bottom.style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.border.bottom.color color

Color.

layout.border.left.width number

Left.

layout.border.left.style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.border.left.color color

Color.

layout.read_direction string

Read direction. This will change the reading direction of the main text elements on the page. It's not possible to adjust this on all elements, such as axes.

Note that when direction is set to right to left any alignment icons will be reversed.

Allowed values:

  • ltr (Left to right)
  • rtl (Right to left)

layout.font_size_mobile_small number

layout.font_size_mobile_big number

layout.font_size_tablet number

layout.font_size_desktop number

layout.font_size_big_screen number

layout.breakpoint_mobile_small number

layout.breakpoint_mobile_big number

layout.breakpoint_tablet number

layout.breakpoint_desktop number

layout.breakpoint_big_screen number

layout.header_align string

Alignment.

Allowed values:

  • left (fa-align-left)
  • center (fa-align-center)
  • right (fa-align-right)

layout.title html

layout.title_styling boolean

Styling.

layout.title_font font

Title Font.

layout.title_size string

Size.

Allowed values:

  • 1.4 (ᴀ)
  • 1.6 (A)
  • 2 (fa-font)
  • custom (...)

layout.title_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.title_weight string

Weight.

Allowed values:

  • bold (Bold)
  • normal (Regular)

layout.title_color color

Color.

layout.title_line_height number

Line height.

Max: 3

layout.title_space_above string

Space above.

Allowed values:

  • 0 (▁)
  • 0.5 (▃)
  • 1 (▄)
  • custom (...)

layout.title_space_above_custom number

Custom.

Max: 100

layout.subtitle html

layout.subtitle_styling boolean

Styling.

layout.subtitle_font font

Subtitle Font.

layout.subtitle_size string

Size.

Allowed values:

  • 1.4 (ᴀ)
  • 1.6 (A)
  • 2 (fa-font)
  • custom (...)

layout.subtitle_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.subtitle_weight string

Weight.

Allowed values:

  • bold (Bold)
  • normal (Regular)

layout.subtitle_color color

Color.

layout.subtitle_line_height number

Line height.

Max: 3

layout.subtitle_space_above string

Space above.

Allowed values:

  • 0 (▁)
  • 0.5 (▃)
  • 1 (▄)
  • custom (...)

layout.subtitle_space_above_custom number

Custom.

Max: 100

layout.header_text html

layout.header_text_styling boolean

Styling.

layout.header_text_size string

Size.

Allowed values:

  • 1.2 (ᴀ)
  • 1.4 (A)
  • 1.6 (fa-font)
  • custom (...)

layout.header_text_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.header_text_weight string

Weight.

Allowed values:

  • bold (Bold)
  • normal (Regular)

layout.header_text_color color

Color.

layout.header_text_line_height number

Line height.

Max: 3

layout.header_text_space_above string

Space above.

Allowed values:

  • 0 (▁)
  • 0.5 (▃)
  • 1 (▄)
  • custom (...)

layout.header_text_space_above_custom number

Custom.

Max: 100

layout.header_border string

Allowed values:

  • top (Top)
  • bottom (Bottom)
  • top_and_bottom (Top & bottom)
  • none (None)

layout.header_border_width number

Width.

layout.header_border_color color

Color.

layout.header_border_style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.header_border_space number

Space. Space between border and header text

layout.header_logo_enabled boolean

Allowed values:

  • true (Enabled)
  • false (Disabled)

layout.header_logo_src url

Image.

layout.header_logo_alt string

Alt text.

Link.

layout.header_logo_height number

Height.

layout.header_logo_align string

Align. Align logo inside either the header or the main visualization container

Allowed values:

  • inside (Header)
  • outside (Main container)

layout.header_logo_position_inside string

Position.

Allowed values:

  • top (Top)
  • left (Left)
  • right (Right)

layout.header_logo_position_outside string

Position.

Allowed values:

  • left (Left)
  • right (Right)

layout.header_logo_margin_top number

Top.

layout.header_logo_margin_right number

Right.

layout.header_logo_margin_bottom number

Bottom.

layout.header_logo_margin_left number

Left.

layout.footer_align string

Alignment.

Allowed values:

  • left (fa-align-left)
  • center (fa-align-center)
  • right (fa-align-right)
  • justify (fa-align-justify)

layout.footer_text_size number

Size.

layout.footer_text_color color

Color.

layout.footer_styling boolean

Advanced footer styles.

layout.footer_font font

Font.

layout.footer_text_weight string

Weight.

Allowed values:

  • bold (Bold)
  • normal (Regular)

layout.source_name string

Source name.

layout.source_url string

Source url.

layout.multiple_sources boolean

Multiple sources.

layout.source_name_2 string

Source name.

layout.source_url_2 string

Source url.

layout.source_name_3 string

Source name.

layout.source_url_3 string

Source url.

layout.source_label string

Source label.

layout.footer_note html

Note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.

layout.footer_note_secondary html

Note (secondary). The secondary note is placed below the source and primary note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.

layout.advanced_note_styling boolean

Advanced.

layout.footer_timestamp_format string

Time/date stamp formatting. To change the date/time format of your timestamp, choose from the below options or provide a custom date format in d3-time-format syntax

Predefined values:

  • %H:%M:%S (13:39:13)
  • %I:%M %p (01:39 PM)
  • %H:%M (13:39)
  • %H:%M %p (13:39 PM)
  • %H:%M:%S, %d %b %Y (13:39:13, 28 Jan 2024)
  • %H:%M, %d %b %Y (13:39, 28 Jan 2024)
  • %H:%M, %d/%m/%Y (13:39, 28/01/2024)
  • %H:%M, %m/%d/%Y (13:39, 01/28/2024)
  • %H:%M, %d-%m-%Y (13:39, 28-01-2024)
  • %H:%M, %m-%d-%Y (13:39, 01-28-2024)
  • %d %b %Y (28 Jan 2024)
  • %m/%d/%Y (01/28/2024)
  • %d/%m/%Y (28/01/2024)
  • %m-%d-%Y (01-28-2024)
  • %d-%m-%Y (28-01-2024)
  • %Y-%m-%d (2024-01-28)
  • %Y-%m-%d %H:%M:%S (2024-01-28 13:39:13)

layout.footer_logo_enabled boolean

Image.

Allowed values:

  • true (Enabled)
  • false (Disabled)

layout.footer_logo_src url

Image.

layout.footer_logo_src_light hidden

Image (light version). If provided this version will be used whenever the background color is dark

layout.footer_logo_alt string

Alt text.

Link.

layout.footer_logo_height number

Height.

layout.footer_logo_margin number

Margin.

layout.footer_logo_order string

Position.

Allowed values:

  • left (Left)
  • right (Right)

layout.footer_align_vertical string

V. align.

Allowed values:

  • flex-start (Top)
  • center (Center)
  • flex-end (Bottom)

layout.footer_border string

Allowed values:

  • top (Top)
  • bottom (Bottom)
  • top_and_bottom (Top & bottom)
  • none (None)

layout.footer_border_width number

Width.

layout.footer_border_color color

Color.

layout.footer_border_style string

Style.

Allowed values:

  • solid (Solid)
  • dashed (Dashed)
  • dotted (Dotted)

layout.footer_border_space number

Space. Space between border and footer text

Accessibility

layout.screenreader_text_primary text

Screenreader description. A text alternative to the visual content that will only be visible to screenreaders, e.g. “The line chart shows China consistently higher than the other countries since 1990”.

Do not replicate your title, since that will also be read by screenreaders.

layout.screenreader_label string

Screenreader label. A short text label given to the main Flourish embed wrapper to provide an accessible name that is only visible to screenreaders. Added in the form of an "aria-label".

layout.screenreader_hide_primary boolean

Screenreader mode for main visual container. Whether the main visual container is visible to screenreaders. (Text in the header and footer are always available to screenreaders.)

Allowed values:

  • true (Hidden)
  • false (Readable)